Thursday, September 21, 2017

Javascript: Prime Number Generator

HTML/Javascript Code:

<html><head>
<meta name="viewport" content="width=device-width">
<script>
var d=document;
var primes=[];

function Prime(){
   for (var i=2; i<=2000000;i++){
      if (this.check(i, primes)){
         primes.push(i);
         d.write(i+" ");
      }
   }
}

Prime.prototype.check=function(i, primes){
   var isOdd=i%2;
   var isPrime=true;
   var n=2;

   if(i==2 || isOdd){
      var to=Math.floor(i/2);

      if (primes.length>0){
         for (var j=0;j<primes.length; j++){
            n=primes[j];
            if(n>to){
               break;
            }
            if(i%n==0){
               isPrime=false;
               break;
            }
         }
      }

      for(;n<=to;n++){
         if(i%n==0){
            isPrime=false;
            break;
         }
      }
   } else {
      isPrime=false;
   }

   return isPrime;
}

function main(){
   var p=new Prime();
}
</script>
</head>
<body onload="main()">default</body>
</html>


Web Inspector:

23.51s



Monday, September 18, 2017

Tuesday, September 12, 2017

Apache HTTP Server: Redirect All HTTP Requests to HTTPS

Command:

# diff httpd.conf httpd.conf.bkup20170901


Result:

1005c1004
< <VirtualHost *:80>
---
> #<VirtualHost *:80>
1008,1009c1007
<      ServerName www.SERVERNAME.com
< Redirect / https://www.SERVERNAME.com/
---
> #    ServerName dummy-host.example.com
1012,1013c1010
< </VirtualHost>
<
---
> #</VirtualHost>


Reference:

https://stackoverflow.com/questions/4083221/how-to-redirect-all-http-requests-to-https/21798882#21798882

Sunday, September 10, 2017

macOS Sierra: Great Internet Mersenne Prime Search

Download URL:

https://www.mersenne.org/download/


Command:

$ cd Downloads/p95v287.MacOSX.noGUI
$ ls -al


Result:

total 46568
drwx------@    5 USERNAME  staff       170 Sep 10 18:11 .
drwx------+ 5224 USERNAME  staff    177616 Sep 10 18:11 ..
-rwxr-xr-x@    1 USERNAME  staff  23769860 Oct  8  2015 mprime
-rwxr-xr-x@    1 USERNAME  staff     20019 Oct  8  2015 readme.txt
-rwxr-xr-x@    1 USERNAME  staff     48871 Oct  8  2015 whatsnew.txt


Command:

$ ./mprime

Welcome to GIMPS, the hunt for huge prime numbers.  You will be asked a
few simple questions and then the program will contact the primenet server
to get some work for your computer.  Good luck!

Attention OVERCLOCKERS!!  Mprime has gained a reputation as a useful
stress testing tool for people that enjoy pushing their hardware to the
limit.  You are more than welcome to use this software for that purpose.
Please select the stress testing choice below to avoid interfering with
the PrimeNet server.  Use the Options/Torture Test menu choice for your
stress tests.  Also, read the stress.txt file.

If you want to both join GIMPS and run stress tests, then Join GIMPS and
answer the questions.  After the server gets some work for you, stop
mprime, then run mprime -m and choose Options/Torture Test.

Join Gimps? (Y=Yes, N=Just stress testing) (Y):
Use PrimeNet to get work and report results (Y):

You must first create your user ID at mersenne.org or leave user ID blank
to run anonymously.  See the readme.txt file for details.
Optional user ID:
Optional computer name:
Computer uses a dial-up connection to the Internet (N):
Optional proxy host name:

Accept the answers above? (Y):
Hours per day this program will run (24): 8

Please see the readme.txt file for important
information on the P-1/ECM stage 2 memory settings.

Daytime P-1/ECM stage 2 memory in MB (8):
Nighttime P-1/ECM stage 2 memory in MB (8):

CPU Information:
Intel(R) Core(TM) i5-4570 CPU @ 3.20GHz
CPU speed: 3156.29 MHz, 4 cores
CPU features: Prefetch, SSE, SSE2, SSE4, AVX, AVX2, FMA
L1 cache size: 32 KB
L2 cache size: 256 KB, L3 cache size: 6 MB


Accept the answers above? (Y):
You have left the available memory fields at 8 megabytes.  You can
increase your chances of finding a Mersenne prime very slightly if you let
the program occasionally use more memory.  The readme.txt file has more
information.  Do you want to let the program use more memory? (Y):
Hours per day this program will run (8):

Please see the readme.txt file for important
information on the P-1/ECM stage 2 memory settings.

Daytime P-1/ECM stage 2 memory in MB (8):
Nighttime P-1/ECM stage 2 memory in MB (8):

CPU Information:
Intel(R) Core(TM) i5-4570 CPU @ 3.20GHz
CPU speed: 3157.21 MHz, 4 cores
CPU features: Prefetch, SSE, SSE2, SSE4, AVX, AVX2, FMA
L1 cache size: 32 KB
L2 cache size: 256 KB, L3 cache size: 6 MB


Accept the answers above? (Y):
Number of workers to run (4):

Pick a priority between 1 and 10 where 1 is the lowest priority and 10 is
the highest.  It is strongly recommended that you use the default priority
of 1.  Your throughput will probably not improve by using a higher
priority.  The only time you should raise the priority is when another
process, such as a screen saver, is stealing CPU cycles from this program.
Priority (1):

Use the following values to select a work type:
  0 - Whatever makes the most sense
  2 - Trial factoring
 100 - First time primality tests
  101 - Double-checking
  102 - World record primality tests
  4 - P-1 factoring
  104 - 100 million digit primality tests
  1 - Trial factoring to low limits
  5 - ECM on small Mersenne numbers
  6 - ECM on Fermat numbers

Options for worker #1

Type of work to get (0):
CPU affinity (1-4=specific CPU, 99=any CPU, 100=smart assignment) (100):

Options for worker #2

Type of work to get (0):
CPU affinity (1-4=specific CPU, 99=any CPU, 100=smart assignment) (100):

Options for worker #3

Type of work to get (0):
CPU affinity (1-4=specific CPU, 99=any CPU, 100=smart assignment) (100):

Options for worker #4

Type of work to get (0):
CPU affinity (1-4=specific CPU, 99=any CPU, 100=smart assignment) (100):

Accept the answers above? (Y):
    Main Menu

[Comm thread 1.  Test/Primenet
 Sep 10 18:20] 2.  Test/Worker threads
Updating computer information on the server
3.  Test/Status
4.  Test/Stop
5.  Test/Exit
6.  Advanced/Test
7.  Advanced/Time
8.  Advanced/P-1
9.  Advanced/ECM
10.  Advanced/Manual Communication
11.  Advanced/Unreserve Exponent
12.  Advanced/Quit Gimps
13.  Options/CPU
14.  Options/Preferences
15.  Options/Torture Test
16.  Options/Benchmark
17.  Help/About
18.  Help/About PrimeNet Server
Your choice: [Main thread Sep 10 18:20] Starting workers.
[Worker #2 Sep 10 18:20] Waiting 5 seconds to stagger worker starts.
[Worker #1 Sep 10 18:20] Worker starting
[Worker #3 Sep 10 18:20] Waiting 10 seconds to stagger worker starts.
[Worker #4 Sep 10 18:20] Waiting 15 seconds to stagger worker starts.
[Worker #1 Sep 10 18:20] Setting affinity to run worker on any logical CPU.
[Worker #1 Sep 10 18:20] No work to do at the present time.  Waiting.
[Comm thread Sep 10 18:20] Exchanging program options with server
[Comm thread Sep 10 18:20] Getting assignment from server
[Comm thread Sep 10 18:20] PrimeNet success code with additional info:
[Comm thread Sep 10 18:20] Server assigned Lucas Lehmer primality double-check work.
[Comm thread Sep 10 18:20] Got assignment CA8227E54A4A393519E9112E62F76D6A: Double check M46815523
[Worker #1 Sep 10 18:20] Resuming.
[Comm thread Sep 10 18:20] Sending expected completion date for M46815523: Oct 12 2017
[Comm thread Sep 10 18:20] Getting assignment from server
[Worker #1 Sep 10 18:20] Starting primality test of M46815523 using FMA3 FFT length 2560K, Pass1=320, Pass2=8K
[Comm thread Sep 10 18:20] PrimeNet success code with additional info:
[Comm thread Sep 10 18:20] Server assigned Lucas Lehmer primality double-check work.
[Comm thread Sep 10 18:20] Got assignment EFF88D259C5F081FBE4230B9148022F3: Double check M46815631
[Comm thread Sep 10 18:20] Sending expected completion date for M46815631: Oct 12 2017
[Comm thread Sep 10 18:20] Getting assignment from server
[Comm thread Sep 10 18:20] PrimeNet success code with additional info:
[Comm thread Sep 10 18:20] Server assigned Lucas Lehmer primality double-check work.
[Comm thread Sep 10 18:20] Got assignment 7D0656A0969D37A68342BD56FA6AEB0F: Double check M46815653
[Comm thread Sep 10 18:20] Sending expected completion date for M46815653: Oct 12 2017
[Comm thread Sep 10 18:20] Getting assignment from server
[Comm thread Sep 10 18:20] PrimeNet success code with additional info:
[Comm thread Sep 10 18:20] Server assigned Lucas Lehmer primality double-check work.
[Comm thread Sep 10 18:20] Got assignment F372FF7C46C77535C09830AFF625EAC8: Double check M46815709
[Comm thread Sep 10 18:20] Sending expected completion date for M46815709: Oct 12 2017
[Comm thread Sep 10 18:20] Done communicating with server.
[Worker #2 Sep 10 18:20] Worker starting
[Worker #2 Sep 10 18:20] Setting affinity to run worker on any logical CPU.
[Worker #2 Sep 10 18:20] Starting primality test of M46815631 using FMA3 FFT length 2560K, Pass1=320, Pass2=8K
[Worker #3 Sep 10 18:20] Worker starting
[Worker #3 Sep 10 18:20] Setting affinity to run worker on any logical CPU.
[Worker #3 Sep 10 18:20] Starting primality test of M46815653 using FMA3 FFT length 2560K, Pass1=320, Pass2=8K
[Worker #4 Sep 10 18:20] Worker starting
[Worker #4 Sep 10 18:20] Setting affinity to run worker on any logical CPU.
[Worker #4 Sep 10 18:20] Starting primality test of M46815709 using FMA3 FFT length 2560K, Pass1=320, Pass2=8K


...


[Worker #4 Sep 23 09:34] Iteration: 46810000 / 46815709 [99.98%], ms/iter: 21.878, ETA: 00:02:04
[Worker #2 Sep 23 09:35] Iteration: 46560000 / 46815631 [99.45%], ms/iter: 22.015, ETA: 01:33:47
[Worker #4 Sep 23 09:36] M46815709 is not prime. Res64: 3743B12175116452. We10: 91F2EA12,36081359,00000000
[Comm thread Sep 23 09:36] Sending result to server: UID: ANONYMOUS/HOSTNAME, M46815709 is not prime. Res64: 3743B12175116452. We10: 91F2EA12,36081359,00000000, AID: F372FF7C46C77535C09830AFF625EAC8
[Comm thread Sep 23 09:36]
[Worker #4 Sep 23 09:36] Starting primality test of M52211813 using FMA3 FFT length 2880K, Pass1=384, Pass2=7680
[Comm thread Sep 23 09:36] PrimeNet success code with additional info:
[Comm thread Sep 23 09:36] LL test successfully completes double-check of M46815709 --
[Comm thread Sep 23 09:36] CPU credit is 81.2773 GHz-days.
[Comm thread Sep 23 09:36] Done communicating with server.
[Worker #3 Sep 23 09:37] Iteration: 46590000 / 46815653 [99.51%], ms/iter: 21.952, ETA: 01:22:33
[Worker #1 Sep 23 09:38] Iteration: 46550000 / 46815523 [99.43%], ms/iter: 21.958, ETA: 01:37:10
[Worker #2 Sep 23 09:39] Iteration: 46570000 / 46815631 [99.47%], ms/iter: 21.932, ETA: 01:29:47
[Worker #4 Sep 23 09:40] Iteration: 10000 / 52211813 [0.01%], ms/iter: 24.515, ETA: 14d 19:28
[Worker #3 Sep 23 09:41] Iteration: 46600000 / 46815653 [99.53%], ms/iter: 21.930, ETA: 01:18:49
[Worker #1 Sep 23 09:41] Iteration: 46560000 / 46815523 [99.45%], ms/iter: 21.785, ETA: 01:32:46
[Worker #2 Sep 23 09:42] Iteration: 46580000 / 46815631 [99.49%], ms/iter: 21.946, ETA: 01:26:11
[Worker #4 Sep 23 09:45] Iteration: 20000 / 52211813 [0.03%], ms/iter: 24.544, ETA: 14d 19:50
[Worker #3 Sep 23 09:45] Iteration: 46610000 / 46815653 [99.56%], ms/iter: 21.907, ETA: 01:15:05
[Worker #1 Sep 23 09:45] Iteration: 46570000 / 46815523 [99.47%], ms/iter: 21.819, ETA: 01:29:16
[Worker #2 Sep 23 09:46] Iteration: 46590000 / 46815631 [99.51%], ms/iter: 21.951, ETA: 01:22:32
[Worker #3 Sep 23 09:48] Iteration: 46620000 / 46815653 [99.58%], ms/iter: 21.961, ETA: 01:11:36
[Worker #1 Sep 23 09:48] Iteration: 46580000 / 46815523 [99.49%], ms/iter: 21.900, ETA: 01:25:57
[Worker #4 Sep 23 09:49] Iteration: 30000 / 52211813 [0.05%], ms/iter: 24.539, ETA: 14d 19:41
[Worker #2 Sep 23 09:50] Iteration: 46600000 / 46815631 [99.53%], ms/iter: 21.934, ETA: 01:18:49
[Worker #3 Sep 23 09:52] Iteration: 46630000 / 46815653 [99.60%], ms/iter: 21.944, ETA: 01:07:54
[Worker #1 Sep 23 09:52] Iteration: 46590000 / 46815523 [99.51%], ms/iter: 21.829, ETA: 01:22:02
[Worker #4 Sep 23 09:53] Iteration: 40000 / 52211813 [0.07%], ms/iter: 24.520, ETA: 14d 19:21
[Worker #2 Sep 23 09:53] Iteration: 46610000 / 46815631 [99.56%], ms/iter: 21.969, ETA: 01:15:17
[Worker #3 Sep 23 09:56] Iteration: 46640000 / 46815653 [99.62%], ms/iter: 21.883, ETA: 01:04:03
[Worker #1 Sep 23 09:56] Iteration: 46600000 / 46815523 [99.53%], ms/iter: 21.842, ETA: 01:18:27
[Worker #4 Sep 23 09:57] Iteration: 50000 / 52211813 [0.09%], ms/iter: 24.523, ETA: 14d 19:19
[Worker #2 Sep 23 09:57] Iteration: 46620000 / 46815631 [99.58%], ms/iter: 21.963, ETA: 01:11:36
[Worker #3 Sep 23 09:59] Iteration: 46650000 / 46815653 [99.64%], ms/iter: 21.901, ETA: 01:00:28
[Worker #1 Sep 23 09:59] Iteration: 46610000 / 46815523 [99.56%], ms/iter: 21.847, ETA: 01:14:50
[Worker #2 Sep 23 10:01] Iteration: 46630000 / 46815631 [99.60%], ms/iter: 21.986, ETA: 01:08:01
[Worker #4 Sep 23 10:01] Iteration: 60000 / 52211813 [0.11%], ms/iter: 24.598, ETA: 14d 20:20
[Worker #3 Sep 23 10:03] Iteration: 46660000 / 46815653 [99.66%], ms/iter: 21.947, ETA: 00:56:56
[Worker #1 Sep 23 10:03] Iteration: 46620000 / 46815523 [99.58%], ms/iter: 21.940, ETA: 01:11:29
[Worker #2 Sep 23 10:04] Iteration: 46640000 / 46815631 [99.62%], ms/iter: 21.940, ETA: 01:04:13
[Worker #4 Sep 23 10:05] Iteration: 70000 / 52211813 [0.13%], ms/iter: 24.664, ETA: 14d 21:13
[Worker #3 Sep 23 10:07] Iteration: 46670000 / 46815653 [99.68%], ms/iter: 22.068, ETA: 00:53:34
[Worker #1 Sep 23 10:07] Iteration: 46630000 / 46815523 [99.60%], ms/iter: 21.945, ETA: 01:07:51
[Worker #2 Sep 23 10:08] Iteration: 46650000 / 46815631 [99.64%], ms/iter: 22.111, ETA: 01:01:02
[Worker #4 Sep 23 10:09] Iteration: 80000 / 52211813 [0.15%], ms/iter: 24.618, ETA: 14d 20:29
[Worker #1 Sep 23 10:10] Iteration: 46640000 / 46815523 [99.62%], ms/iter: 21.820, ETA: 01:03:49
[Worker #3 Sep 23 10:10] Iteration: 46680000 / 46815653 [99.71%], ms/iter: 21.933, ETA: 00:49:35
[Worker #2 Sep 23 10:12] Iteration: 46660000 / 46815631 [99.66%], ms/iter: 21.986, ETA: 00:57:01
[Worker #4 Sep 23 10:13] Iteration: 90000 / 52211813 [0.17%], ms/iter: 24.513, ETA: 14d 18:54
[Worker #1 Sep 23 10:14] Iteration: 46650000 / 46815523 [99.64%], ms/iter: 21.800, ETA: 01:00:08
[Worker #3 Sep 23 10:14] Iteration: 46690000 / 46815653 [99.73%], ms/iter: 21.912, ETA: 00:45:53
[Worker #2 Sep 23 10:15] Iteration: 46670000 / 46815631 [99.68%], ms/iter: 21.962, ETA: 00:53:18
[Worker #4 Sep 23 10:17] Iteration: 100000 / 52211813 [0.19%], ms/iter: 24.553, ETA: 14d 19:25
[Worker #1 Sep 23 10:18] Iteration: 46660000 / 46815523 [99.66%], ms/iter: 21.882, ETA: 00:56:43
[Worker #3 Sep 23 10:18] Iteration: 46700000 / 46815653 [99.75%], ms/iter: 21.947, ETA: 00:42:18
[Worker #2 Sep 23 10:19] Iteration: 46680000 / 46815631 [99.71%], ms/iter: 21.978, ETA: 00:49:40
[Worker #1 Sep 23 10:21] Iteration: 46670000 / 46815523 [99.68%], ms/iter: 21.818, ETA: 00:52:55
[Worker #3 Sep 23 10:21] Iteration: 46710000 / 46815653 [99.77%], ms/iter: 21.903, ETA: 00:38:34
[Worker #4 Sep 23 10:21] Iteration: 110000 / 52211813 [0.21%], ms/iter: 24.562, ETA: 14d 19:28
[Worker #2 Sep 23 10:23] Iteration: 46690000 / 46815631 [99.73%], ms/iter: 21.954, ETA: 00:45:58
[Worker #1 Sep 23 10:25] Iteration: 46680000 / 46815523 [99.71%], ms/iter: 21.905, ETA: 00:49:28
[Worker #3 Sep 23 10:25] Iteration: 46720000 / 46815653 [99.79%], ms/iter: 21.925, ETA: 00:34:57
[Worker #4 Sep 23 10:25] Iteration: 120000 / 52211813 [0.22%], ms/iter: 24.522, ETA: 14d 18:49
[Worker #2 Sep 23 10:26] Iteration: 46700000 / 46815631 [99.75%], ms/iter: 21.932, ETA: 00:42:16
[Worker #1 Sep 23 10:29] Iteration: 46690000 / 46815523 [99.73%], ms/iter: 21.960, ETA: 00:45:56
[Worker #3 Sep 23 10:29] Iteration: 46730000 / 46815653 [99.81%], ms/iter: 21.998, ETA: 00:31:24
[Worker #4 Sep 23 10:30] Iteration: 130000 / 52211813 [0.24%], ms/iter: 24.586, ETA: 14d 19:41
[Worker #2 Sep 23 10:30] Iteration: 46710000 / 46815631 [99.77%], ms/iter: 22.000, ETA: 00:38:43
[Worker #1 Sep 23 10:32] Iteration: 46700000 / 46815523 [99.75%], ms/iter: 21.891, ETA: 00:42:08
[Worker #3 Sep 23 10:32] Iteration: 46740000 / 46815653 [99.83%], ms/iter: 21.906, ETA: 00:27:37
[Worker #2 Sep 23 10:34] Iteration: 46720000 / 46815631 [99.79%], ms/iter: 21.909, ETA: 00:34:55
[Worker #4 Sep 23 10:34] Iteration: 140000 / 52211813 [0.26%], ms/iter: 24.617, ETA: 14d 20:04
[Worker #1 Sep 23 10:36] Iteration: 46710000 / 46815523 [99.77%], ms/iter: 21.840, ETA: 00:38:24
[Worker #3 Sep 23 10:36] Iteration: 46750000 / 46815653 [99.85%], ms/iter: 21.897, ETA: 00:23:57
[Worker #2 Sep 23 10:37] Iteration: 46730000 / 46815631 [99.81%], ms/iter: 21.920, ETA: 00:31:17
[Worker #4 Sep 23 10:38] Iteration: 150000 / 52211813 [0.28%], ms/iter: 24.554, ETA: 14d 19:05
[Worker #1 Sep 23 10:40] Iteration: 46720000 / 46815523 [99.79%], ms/iter: 21.849, ETA: 00:34:47
[Worker #3 Sep 23 10:40] Iteration: 46760000 / 46815653 [99.88%], ms/iter: 21.869, ETA: 00:20:17
[Worker #2 Sep 23 10:41] Iteration: 46740000 / 46815631 [99.83%], ms/iter: 21.964, ETA: 00:27:41
[Worker #4 Sep 23 10:42] Iteration: 160000 / 52211813 [0.30%], ms/iter: 24.596, ETA: 14d 19:37
[Worker #1 Sep 23 10:43] Iteration: 46730000 / 46815523 [99.81%], ms/iter: 21.909, ETA: 00:31:13
[Worker #3 Sep 23 10:43] Iteration: 46770000 / 46815653 [99.90%], ms/iter: 21.957, ETA: 00:16:42
[Worker #2 Sep 23 10:45] Iteration: 46750000 / 46815631 [99.85%], ms/iter: 22.055, ETA: 00:24:07
[Worker #4 Sep 23 10:46] Iteration: 170000 / 52211813 [0.32%], ms/iter: 24.531, ETA: 14d 18:37
[Worker #1 Sep 23 10:47] Iteration: 46740000 / 46815523 [99.83%], ms/iter: 21.915, ETA: 00:27:35
[Worker #3 Sep 23 10:47] Iteration: 46780000 / 46815653 [99.92%], ms/iter: 21.976, ETA: 00:13:03
[Worker #2 Sep 23 10:48] Iteration: 46760000 / 46815631 [99.88%], ms/iter: 21.940, ETA: 00:20:20
[Worker #4 Sep 23 10:50] Iteration: 180000 / 52211813 [0.34%], ms/iter: 24.589, ETA: 14d 19:23
[Worker #1 Sep 23 10:50] Iteration: 46750000 / 46815523 [99.86%], ms/iter: 21.838, ETA: 00:23:50
[Worker #3 Sep 23 10:51] Iteration: 46790000 / 46815653 [99.94%], ms/iter: 21.948, ETA: 00:09:23
[Worker #2 Sep 23 10:52] Iteration: 46770000 / 46815631 [99.90%], ms/iter: 22.003, ETA: 00:16:44
[Worker #1 Sep 23 10:54] Iteration: 46760000 / 46815523 [99.88%], ms/iter: 21.844, ETA: 00:20:12
[Worker #4 Sep 23 10:54] Iteration: 190000 / 52211813 [0.36%], ms/iter: 24.554, ETA: 14d 18:49
[Worker #3 Sep 23 10:54] Iteration: 46800000 / 46815653 [99.96%], ms/iter: 21.912, ETA: 00:05:42
[Worker #2 Sep 23 10:56] Iteration: 46780000 / 46815631 [99.92%], ms/iter: 21.913, ETA: 00:13:00
[Worker #1 Sep 23 10:58] Iteration: 46770000 / 46815523 [99.90%], ms/iter: 21.850, ETA: 00:16:34
[Worker #3 Sep 23 10:58] Iteration: 46810000 / 46815653 [99.98%], ms/iter: 21.963, ETA: 00:02:04
[Worker #4 Sep 23 10:58] Iteration: 200000 / 52211813 [0.38%], ms/iter: 24.591, ETA: 14d 19:16
[Worker #2 Sep 23 10:59] Iteration: 46790000 / 46815631 [99.94%], ms/iter: 22.002, ETA: 00:09:23
[Worker #3 Sep 23 11:00] M46815653 is not prime. Res64: 5526CE4B5C94742A. We10: 8C6B2C33,28778334,00000000
[Comm thread Sep 23 11:00] Sending result to server: UID: ANONYMOUS/HOSTNAME, M46815653 is not prime. Res64: 5526CE4B5C94742A. We10: 8C6B2C33,28778334,00000000, AID: 7D0656A0969D37A68342BD56FA6AEB0F
[Comm thread Sep 23 11:00]
[Worker #3 Sep 23 11:00] Starting primality test of M52239763 using FMA3 FFT length 2880K, Pass1=384, Pass2=7680
[Comm thread Sep 23 11:00] PrimeNet success code with additional info:
[Comm thread Sep 23 11:00] LL test successfully completes double-check of M46815653 --
[Comm thread Sep 23 11:00] CPU credit is 81.2772 GHz-days.
[Comm thread Sep 23 11:00] Done communicating with server.
[Worker #1 Sep 23 11:01] Iteration: 46780000 / 46815523 [99.92%], ms/iter: 21.858, ETA: 00:12:56
[Worker #4 Sep 23 11:02] Iteration: 210000 / 52211813 [0.40%], ms/iter: 24.496, ETA: 14d 17:50
[Worker #2 Sep 23 11:03] Iteration: 46800000 / 46815631 [99.96%], ms/iter: 21.785, ETA: 00:05:40
[Worker #3 Sep 23 11:04] Iteration: 10000 / 52239763 [0.01%], ms/iter: 24.435, ETA: 14d 18:30
[Worker #1 Sep 23 11:05] Iteration: 46790000 / 46815523 [99.94%], ms/iter: 21.845, ETA: 00:09:17
[Worker #4 Sep 23 11:06] Iteration: 220000 / 52211813 [0.42%], ms/iter: 24.473, ETA: 14d 17:26
[Worker #2 Sep 23 11:06] Iteration: 46810000 / 46815631 [99.98%], ms/iter: 21.862, ETA: 00:02:03
[Worker #3 Sep 23 11:08] Iteration: 20000 / 52239763 [0.03%], ms/iter: 24.445, ETA: 14d 18:35
[Worker #2 Sep 23 11:09] M46815631 is not prime. Res64: 5B66CB1493FBFCDE. We10: D1474232,4671380,00000000
[Comm thread Sep 23 11:09] Sending result to server: UID: ANONYMOUS/HOSTNAME, M46815631 is not prime. Res64: 5B66CB1493FBFCDE. We10: D1474232,4671380,00000000, AID: EFF88D259C5F081FBE4230B9148022F3
[Comm thread Sep 23 11:09]
[Comm thread Sep 23 11:09] PrimeNet success code with additional info:
[Comm thread Sep 23 11:09] LL test successfully completes double-check of M46815631 --
[Comm thread Sep 23 11:09] CPU credit is 81.2771 GHz-days.
[Comm thread Sep 23 11:09] Done communicating with server.
[Worker #2 Sep 23 11:09] Starting primality test of M52239703 using FMA3 FFT length 2880K, Pass1=384, Pass2=7680
[Worker #1 Sep 23 11:09] Iteration: 46800000 / 46815523 [99.96%], ms/iter: 21.775, ETA: 00:05:38
[Worker #4 Sep 23 11:10] Iteration: 230000 / 52211813 [0.44%], ms/iter: 24.458, ETA: 14d 17:09
[Worker #3 Sep 23 11:12] Iteration: 30000 / 52239763 [0.05%], ms/iter: 24.411, ETA: 14d 18:01
[Worker #1 Sep 23 11:12] Iteration: 46810000 / 46815523 [99.98%], ms/iter: 21.884, ETA: 00:02:00
[Worker #2 Sep 23 11:13] Iteration: 10000 / 52239703 [0.01%], ms/iter: 24.458, ETA: 14d 18:50
[Worker #1 Sep 23 11:14] M46815523 is not prime. Res64: FADF96B9271D5C6F. We10: 1A320A26,36328402,00000000
[Comm thread Sep 23 11:14] Sending result to server: UID: ANONYMOUS/HOSTNAME, M46815523 is not prime. Res64: FADF96B9271D5C6F. We10: 1A320A26,36328402,00000000, AID: CA8227E54A4A393519E9112E62F76D6A
[Comm thread Sep 23 11:14]
[Comm thread Sep 23 11:14] PrimeNet success code with additional info:
[Comm thread Sep 23 11:14] LL test successfully completes double-check of M46815523 --
[Comm thread Sep 23 11:14] CPU credit is 81.2769 GHz-days.
[Comm thread Sep 23 11:14] Done communicating with server.
[Worker #1 Sep 23 11:14] Starting primality test of M52239661 using FMA3 FFT length 2880K, Pass1=384, Pass2=7680
[Worker #4 Sep 23 11:15] Iteration: 240000 / 52211813 [0.45%], ms/iter: 24.427, ETA: 14d 16:38
[Worker #3 Sep 23 11:16] Iteration: 40000 / 52239763 [0.07%], ms/iter: 24.369, ETA: 14d 17:21
[Worker #2 Sep 23 11:17] Iteration: 20000 / 52239703 [0.03%], ms/iter: 24.420, ETA: 14d 18:13
[Worker #1 Sep 23 11:18] Iteration: 10000 / 52239661 [0.01%], ms/iter: 24.326, ETA: 14d 16:55
[Worker #4 Sep 23 11:19] Iteration: 250000 / 52211813 [0.47%], ms/iter: 24.344, ETA: 14d 15:22
[Worker #3 Sep 23 11:20] Iteration: 50000 / 52239763 [0.09%], ms/iter: 24.374, ETA: 14d 17:21
[Worker #2 Sep 23 11:21] Iteration

Git: Start Using It

Command:

# git init


Result:

Initialized empty Git repository in /var/www/.git/


Command:

# git add html
# git add php
# git commit -m "My first commit"


Result:

[master (root-commit) 2bdce87] My first commit
 Committer: root <root@v00000.myserver.com>
Your name and email address were configured automatically based
on your username and hostname. Please check that they are accurate.
You can suppress this message by setting them explicitly:

    git config --global user.name "Your Name"
    git config --global user.email you@example.com

If the identity used for this commit is wrong, you can fix it with:

    git commit --amend --author='Your Name <you@example.com>'

 30 files changed, 4545 insertions(+), 0 deletions(-)
 create mode 100644 html/a/2chnews/README.txt
 create mode 100644 html/a/2chnews/index.php
 create mode 100644 html/a/yahoonews/index.php
 create mode 100644 html/b/JSON_PATH
 create mode 100644 html/b/index.php
 create mode 100644 html/c/getcurrencies/index.php
 create mode 100644 html/c/getmarkets/index.php
 create mode 100644 html/c/getmarketsummaries/index.php
 create mode 100644 html/c/getticker/index.php
 create mode 100644 html/d/rate/index.php
 create mode 100644 html/e/calculator/getrate.php
 create mode 100644 html/e/calculator/getratealts.php
 create mode 100644 html/e/calculator/index.php
 create mode 100644 html/e/calculator/setamountcookie.php
 create mode 100644 html/f/index.php
 create mode 100644 html/img/crypto_logos.png
 create mode 100644 html/index.html
 create mode 100644 html/g/cookie/index.html
 create mode 100644 html/g/crypto/index.php
 create mode 100644 php/init.php
 create mode 100644 php/lib/a
 create mode 100644 php/lib/b
 create mode 100644 php/lib/c
 create mode 100644 php/lib/d
 create mode 100644 php/lib/e
 create mode 100644 php/lib/f
 create mode 100644 php/lib/g
 create mode 100644 php/lib/h
 create mode 100644 php/lib/u
 create mode 100644 php/lib/i
 create mode 100644 php/lib/j
 create mode 100644 php/template/k
 create mode 100644 php/template/l
 create mode 100644 php/template/m
 create mode 100644 php/template/n
 create mode 100644 php/template/o

Command:

# git push . master


Result:

Everything up-to-date


Command:

# git push .


Result:

Everything up-to-date


Command:

# git status


Result:

# On branch master
# Untracked files:
#   (use "git add <file>..." to include in what will be committed)
#
# error/
# icons/
nothing added to commit but untracked files present (use "git add" to track)


Command:

# git config --global user.name "s**********"
# git config --global user.email s***********@gmail.com

Bash: Generating Prime Number List

Command:

$ cat primenumberlist.sh


Result:

#!/bin/bash

if [ $# -ne 1 ]
then
echo "Number of argument must be 1"
exit
fi

let "l = $1"

for (( n = 2; n <= $l; n++ ))
do
for (( m = 2; m <= $n; m++ ))
do
        if (($m == $n)) ; then
echo "$n ";
break;
fi

let "r = $n % $m"

if (($r == 0)) ; then
break;
fi
done
done


Command:

$ ./primenumberlist.sh 99999999999999


Result:

2
3
5
7
11
13
17
19
23
29
31
37
41
43
47
53
59
61
67
71
73
79
83
89
97
101
103
107
109
113
127
131
137
139
149
151
157
163
167
173
179
181
191
193
197
199
211
223
227
229
233
239
241
251
257
263
269
271
277
281
283
293
307
311
313
317
331
337
347
349
353
359
367
373
379
383
389
397
401
409
419
421
431
433
439
443
449
457
461
463
467
479
487
491
499
503
509
521
523
541
547
557
563
569
571
577
587
593
599
601
607
613 

Sunday, September 3, 2017

CentOS: Find and Delete

Command (Deleting files under /tmp directory more than a day old):

$ find /tmp -type f -mtime +1 -delete

Friday, September 1, 2017

macOS Sierra: jq: Installation

Command:

$ brew install jq


Result:

Updating Homebrew...
==> Auto-updated Homebrew!
Updated Homebrew from e1bab7ede to b2cd52d0b.
Updated 4 taps (caskroom/cask, ethereum/ethereum, homebrew/core, homebrew/science).
==> New Formulae
ampl-mp                      dlib                         gomplate                     http-server                  libxlsxwriter                opencv@2                     sundials
clblas                       erlang@17                    gopass                       hypre                        marathon-swift               packmol                      team-explorer-everywhere
clfft                        frugal                       gromacs                      igraph                       maxima                       pcb                          telnet
clinfo                       geth                         homebrew/science/bam2wig     jupyter                      mimic                        pcl                          voro++
cminpack                     gmsh                         homebrew/science/lrsim       libbitcoin                   nco                          root@5                       wxmaxima
cppad                        gmt                          homebrew/science/nanoflann   libbitcoin-explorer          ncview                       s-nail                       xtensor
datamash                     go@1.8                       homebrew/science/unicycler   libmatio                     nlopt                        stubby
==> Updated Formulae
abcm2ps                                  embulk                                   homebrew/science/field3d                 luaver                                   rtags
ace                                      erlang                                   homebrew/science/gubbins                 lumo                                     rtmidi
acmetool                                 etcd                                     homebrew/science/humann2                 lxc                                      rust
advancecomp                              ethereum/ethereum/solidity               homebrew/science/insighttoolkit          lynis                                    rxvt-unicode
afl-fuzz                                 etsh                                     homebrew/science/lammps                  lz4                                      s-search
akamai                                   expat                                    homebrew/science/libfolia                lzop                                     s6
alexjs                                   exploitdb                                homebrew/science/lighter                 m-cli                                    saltstack
algernon                                 faas-cli                                 homebrew/science/lightstringgraph        macosvpn                                 saxon
allure                                   fail2ban                                 homebrew/science/lmod                    mame                                     sbcl
alot                                     fakeroot                                 homebrew/science/madlib                  mapcrafter                               scalaenv
amazon-ecs-cli                           fibjs                                    homebrew/science/mothur                  mariadb                                  scalariform
ammonite-repl                            fig2dev ✔                                homebrew/science/nanopolish              mednafen                                 sccache
angular-cli                              filebeat                                 homebrew/science/nextflow                meson                                    sdcv
ansible                                  fio                                      homebrew/science/oce                     metaproxy                                selenium-server-standalone
ansible@2.0                              fits                                     homebrew/science/openalpr                metricbeat                               shairport-sync
apache-arrow                             flatcc                                   homebrew/science/openbr                  micropython                              snapcraft
app-engine-go-64                         flawfinder                               homebrew/science/opencollada             mikutter                                 snappy ✔
arangodb                                 flow                                     homebrew/science/openimageio             mingw-w64                                socat
argyll-cms                               fluent-bit                               homebrew/science/openmeeg                minidlna                                 sops
armadillo                                fobis                                    homebrew/science/phyml                   mitmproxy                                source-highlight
atlassian-cli                            folly                                    homebrew/science/picard-tools            mksh                                     sourcekitten
audacious                                fonttools                                homebrew/science/plink2                  mkvtoolnix                               spdlog
augeas                                   freeipmi                                 homebrew/science/poretools               mm-common                                sphinx-doc
aws-sdk-cpp                              freeswitch                               homebrew/science/prodigal                mmark                                    sqlcipher
aws-shell                                freetds                                  homebrew/science/prokka                  mobile-shell                             sqldiff
awscli                                   fstar                                    homebrew/science/pspp                    mongo-cxx-driver                         sqlite ✔
azure-cli                                fwknop                                   homebrew/science/repeatmasker            mpd                                      sqlite-analyzer
babl                                     fwup                                     homebrew/science/salmon                  mpdas                                    squid
bash-snippets                            fzf                                      homebrew/science/scram                   nagios                                   sshfs
bazel                                    ganglia                                  homebrew/science/sga                     nano                                     stella
binaryen                                 gcc ✔                                    homebrew/science/shark                   nanopb-generator                         stgit
bitcoin                                  gd ✔                                     homebrew/science/simpleitk               ncmpcpp                                  supersonic
bmake                                    gdk-pixbuf                               homebrew/science/siril                   netpbm                                   swiftformat
bmon                                     gegl                                     homebrew/science/sratoolkit              newsbeuter                               swiftgen
boost                                    get-flash-videos                         homebrew/science/ticcutils               nghttp2                                  swiftlint
boost-bcp                                get_iplayer                              homebrew/science/timbl                   node                                     swimat
boost-mpi                                getdns                                   homebrew/science/tophat                  nomad                                    sysdig
boost-python                             ghq                                      homebrew/science/transdecoder            nss                                      t1utils
boot-clj                                 gifsicle                                 homebrew/science/trf                     octave ✔                                 tarsnap
btfs                                     git-annex                                homebrew/science/trinity                 oniguruma                                tbox
byobu                                    git-town                                 homebrew/science/ucto                    onscripter                               tee-clc
caddy                                    gitlab-ci-multi-runner                   homebrew/science/vislcg3                 openfortivpn                             teensy_loader_cli
cargo-completion                         gjstest                                  homebrew/science/visp                    openmsx                                  teleport
cassandra@2.2                            glm                                      homebrew/science/vsearch                 orientdb                                 termius
ccextractor                              gmic                                     homebrew/science/wopr                    osm-pbf                                  terraform
cclive                                   gnupg                                    homebrew/science/xbyak                   osm2pgrouting                            terraform-docs
ceylon                                   gnupg-pkcs11-scd                         homebrew/science/xcdf                    osmium-tool                              terragrunt
checkstyle                               gnutls ✔                                 homebrew/science/yices                   osquery                                  the_silver_searcher
chipmunk                                 go ✔                                     http_load                                osrm-backend                             thefuck
chromedriver                             goad                                     hyper                                    overmind                                 tile38
chronograf                               godep                                    i3status                                 p11-kit ✔                                timedog
cimg                                     goenv                                    iamy                                     packetbeat                               tippecanoe
citus                                    gofabric8                                imagemagick ✔                            paket                                    todoman
clasp                                    goofys                                   imagemagick@6                            pango                                    tokei
cli53                                    google-java-format                       infer                                    parallel                                 tomcat
clib                                     googler ✔                                influxdb                                 passenger                                tomcat-native
cmark-gfm                                gpsbabel                                 influxdb@0.8                             payara                                   tomcat@6
cockatrice                               grails                                   innoextract                              pazpar2                                  tomcat@7
cockroach                                grakn                                    insect                                   pc6001vx                                 trace2html
commandbox                               groonga                                  instead                                  pcb2gcode                                trafshow
compcert                                 grpc                                     ios-webkit-debug-proxy                   pcre2                                    transcrypt
conan                                    grunt-completion                         ipbt                                     pdftoedn                                 tsung
confuse                                  gsoap                                    jenkins                                  percona-server@5.5                       ttfautohint
conjure-up                               gspell                                   jenkins-lts                              percona-server@5.6                       twarc
consul-template                          gtk+3                                    jfrog-cli-go                             pgrouting                                typescript
convox                                   gtk-doc                                  jhipster                                 pianobar                                 uhd
corebird                                 gws                                      jmxtrans                                 pick                                     unbound
couchdb                                  gwyddion                                 json-fortran                             picoc                                    unibilium
cromwell                                 hadoop                                   jsoncpp                                  pioneer                                  unrar ✔
crosstool-ng                             hana                                     jvgrep                                   planck                                   upscaledb
crowdin                                  haproxy                                  kibana                                   plplot                                   urh
cucumber-cpp                             harfbuzz                                 kitchen-sync                             pngcrush                                 urweb
curl ✔                                   heroku                                   knot                                     points2grid                              vagrant-completion
dasht                                    hg-fast-export                           kompose                                  ponyc                                    vault
dbhash                                   hicolor-icon-theme                       kotlin                                   pre-commit                               vdirsyncer
dcd                                      hivemind                                 kube-aws                                 presto                                   vim ✔
dcm2niix                                 hledger                                  kubernetes-cli                           primesieve                               vips
dcos-cli                                 homebrew/science/alembic                 kubernetes-helm                          protobuf                                 vnu
ddar                                     homebrew/science/alpscore                latexila                                 protobuf-c                               vowpal-wabbit
dependency-check                         homebrew/science/artemis                 lean-cli                                 protobuf-swift                           w3m
dhall-json                               homebrew/science/augustus                ledger                                   pybind11                                 watchman
digdag                                   homebrew/science/bali-phy                libcds                                   pyinvoke                                 webpack
dmd                                      homebrew/science/bamtools                libcouchbase                             qcli                                     wesnoth
docker                                   homebrew/science/bedops                  libebml                                  quantlib                                 whois
docker-completion                        homebrew/science/blast                   libftdi                                  r ✔                                      widelands
docker-compose                           homebrew/science/bless                   libgcrypt ✔                              rabbitmq                                 wine
docker-compose-completion                homebrew/science/boost-compute           libjson-rpc-cpp                          rancher-cli                              winetricks
docker-credential-helper                 homebrew/science/butterflow              libosinfo                                re2c                                     wireshark ✔
docker-swarm                             homebrew/science/canu                    libosmium                                rebar@3                                  xctool
dovecot                                  homebrew/science/cdo                     libphonenumber                           recon-ng                                 xmake
druid                                    homebrew/science/ckon                    libpng ✔                                 redex                                    xrootd
dspdfviewer                              homebrew/science/cmor                    libqalculate                             remake                                   yadm
dub                                      homebrew/science/cufflinks               libtensorflow                            rhash                                    yle-dl
duck                                     homebrew/science/cutadapt                libtommath                               rhino                                    youtube-dl
duplicity                                homebrew/science/cvblob                  libuv                                    riak                                     zabbix
dvm                                      homebrew/science/dealii                  libwbxml                                 riemann-client                           zanata-client
dynamips                                 homebrew/science/delly                   libxml2                                  ripgrep                                  zbackup
e2fsprogs                                homebrew/science/dgtal                   linkerd                                  rocksdb                                  zimg
efl                                      homebrew/science/diamond                 llnode                                   rom-tools                                zsh-syntax-highlighting
ejabberd                                 homebrew/science/express                 logstash                                 roswell                                  zstd
elasticsearch                            homebrew/science/fasttree                logtalk                                  rt-audio
==> Renamed Formulae
gmt4 -> gmt@4                                      opencv3 -> opencv                                  root6 -> root                                      srtp@1.5 -> srtp@1.6
==> Deleted Formulae
gh                           go-gui                       homebrew/science/opencv      homebrew/science/pillow      kafka@0.80                   phantomjs@1.92               phantomjs@1.98

==> Installing dependencies for jq: oniguruma
==> Installing jq dependency: oniguruma
==> Downloading https://homebrew.bintray.com/bottles/oniguruma-6.6.1.sierra.bottle.tar.gz
######################################################################## 100.0%
==> Pouring oniguruma-6.6.1.sierra.bottle.tar.gz
🍺  /usr/local/Cellar/oniguruma/6.6.1: 17 files, 1.3MB
==> Installing jq
==> Downloading https://homebrew.bintray.com/bottles/jq-1.5_2.sierra.bottle.tar.gz
######################################################################## 100.0%
==> Pouring jq-1.5_2.sierra.bottle.tar.gz
🍺  /usr/local/Cellar/jq/1.5_2: 18 files, 958KB

CentOS: Enabling SSL (Doesn't work perfectly)

Command:

# cd /etc/httpd/conf.d/
# diff /etc/httpd/conf.d/ssl.conf /etc/httpd/conf.d/ssl.conf.org


Result:

105,106c105
< #SSLCertificateFile /etc/pki/tls/certs/localhost.crt
< SSLCertificateFile /etc/pki/tls/certs/ca.crt
---
> SSLCertificateFile /etc/pki/tls/certs/localhost.crt
113,114c112
< #SSLCertificateKeyFile /etc/pki/tls/private/localhost.key
< SSLCertificateKeyFile /etc/pki/tls/private/ca.key
---
> SSLCertificateKeyFile /etc/pki/tls/private/localhost.key


Command:

# sudo openssl genrsa -out ca.key 2048


Result:

Generating RSA private key, 2048 bit long modulus
........................................................................................+++
..........+++
e is 65537 (0x10001)


Command:

# sudo openssl req -new -key ca.key -out ca.csr


Result:

You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [XX]: US
State or Province Name (full name) []: SOMEWHERE1
Locality Name (eg, city) [Default City]: SOMEWHERE2
Organization Name (eg, company) [Default Company Ltd]:
Organizational Unit Name (eg, section) []:
Common Name (eg, your name or your server's hostname) []: www.myserver.com
Email Address []:admin@myserver.com

Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []: PASSWORD
An optional company name []:


Command:

# sudo openssl x509 -req -days 365 -in ca.csr -signkey ca.key -out ca.crt


Result:

Signature ok
subject=/C=US/ST=SOMEWHERE1/L=SOMEWHERE2/O=Default Company Ltd/CN=www.myserver.com/emailAddress=admin@myserver.com
Getting Private key


Command:

# sudo cp ca.crt /etc/pki/tls/certs
# sudo cp ca.key /etc/pki/tls/private/ca.key
# sudo cp ca.csr /etc/pki/tls/private/ca.csr


Command:

# diff /etc/httpd/conf.d/ssl.conf /etc/httpd/conf.d/ssl.conf.org


Result:

105,106c105
< #SSLCertificateFile /etc/pki/tls/certs/localhost.crt
< SSLCertificateFile /etc/pki/tls/certs/ca.crt
---
> SSLCertificateFile /etc/pki/tls/certs/localhost.crt
113,114c112
< #SSLCertificateKeyFile /etc/pki/tls/private/localhost.key
< SSLCertificateKeyFile /etc/pki/tls/private/ca.key
---
> SSLCertificateKeyFile /etc/pki/tls/private/localhost.key


Command:

# apachectl restart


Result:

[Fri Sep 01 05:21:33 2017] [warn] module ssl_module is already loaded, skipping


Command:

# sudo mkdir -p /var/www/html/ssl
# sudo mkdir -p /etc/httpd/sites-available
# sudo mkdir -p /etc/httpd/sites-enabled

# apachectl restart
# vi httpd.conf
# diff httpd.conf httpd.conf.bkup20170901


Result:

217d216
< #LoadModule ssl_module modules/mod_ssl.so
1012,1021d1010
<
< #Listen 443
< #<VirtualHost *:443>
< # ServerName www.myserver.com
< # SSLEngine on
< # SSLCertificateFile "/path/to/www.example.com.cert"
< # SSLCertificateKeyFile "/path/to/www.example.com.key"
< #</VirtualHost>
<
< IncludeOptional sites-enabled/*.conf


Command:

# cat ssl.conf


Result:

<VirtualHost *:443>
ServerAdmin admin@myserver.com
DocumentRoot "/var/www/html/ssl/"
ServerName Myserver
ServerAlias myserver
ErrorLog /var/www/html/ssl/error.log

<Directory "/var/www/html/ssl/">
DirectoryIndex index.html index.php
Options FollowSymLinks
AllowOverride All
Require all granted
</Directory>
</VirtualHost>


Command:

# sudo ln -s /etc/httpd/sites-available/ssl.conf /etc/httpd/sites-enabled/ssl.conf
# apachectl restart


Result:

apachectl: Configuration syntax error, will not run "restart":
Syntax error on line 1021 of /etc/httpd/conf/httpd.conf:
Invalid command 'IncludeOptional', perhaps misspelled or defined by a module not included in the server configuration


Command:

# diff httpd.conf httpd.conf.bkup20170901


Result:

217d216
< #LoadModule ssl_module modules/mod_ssl.so
1012,1021d1010
<
< #Listen 443
< #<VirtualHost *:443>
< # ServerName www.myserver.com
< # SSLEngine on
< # SSLCertificateFile "/path/to/www.example.com.cert"
< # SSLCertificateKeyFile "/path/to/www.example.com.key"
< #</VirtualHost>
<
< Include sites-enabled/


Command:

# apachectl restart


Result:

[Fri Sep 01 05:42:50 2017] [warn] _default_ VirtualHost overlap on port 443, the first has precedence


Reference:

http://www.techrepublic.com/article/how-to-enable-https-on-apache-centos/