Command:
# nohup COMMAND &
# tail -f nohup.out
# exit
Showing posts with label CentOS. Show all posts
Showing posts with label CentOS. Show all posts
Thursday, December 7, 2017
CentOS: Running CPU Miner using cpulimit (90%)
Command:
# cpulimit -l 90 -- ./minerd --config n-zeny.json
Result:
[2017-12-07 14:19:23] 2 miner threads started, using 'yescrypt' algorithm.
[2017-12-07 14:19:23] Starting Stratum on stratum+tcp://mining-zeny.mdpool.info:6969
[2017-12-07 14:19:23] Stratum requested work restart
[2017-12-07 14:19:26] accepted: 1/1 (100.00%), 0.36 khash/s (yay!!!)
[2017-12-07 14:19:28] accepted: 2/2 (100.00%), 0.56 khash/s (yay!!!)
[2017-12-07 14:19:44] accepted: 3/3 (100.00%), 0.51 khash/s (yay!!!)
[2017-12-07 14:19:49] accepted: 4/4 (100.00%), 0.53 khash/s (yay!!!)
# cpulimit -l 90 -- ./minerd --config n-zeny.json
Result:
[2017-12-07 14:19:23] 2 miner threads started, using 'yescrypt' algorithm.
[2017-12-07 14:19:23] Starting Stratum on stratum+tcp://mining-zeny.mdpool.info:6969
[2017-12-07 14:19:23] Stratum requested work restart
[2017-12-07 14:19:26] accepted: 1/1 (100.00%), 0.36 khash/s (yay!!!)
[2017-12-07 14:19:28] accepted: 2/2 (100.00%), 0.56 khash/s (yay!!!)
[2017-12-07 14:19:44] accepted: 3/3 (100.00%), 0.51 khash/s (yay!!!)
[2017-12-07 14:19:49] accepted: 4/4 (100.00%), 0.53 khash/s (yay!!!)
CentOS: Installing cpulimit
Command:
# yum install cpulimit
Result:
Loaded plugins: fastestmirror, security
Setting up Install Process
Loading mirror speeds from cached hostfile
* base: ftp.tsukuba.wide.ad.jp
* epel: mirror.dmmlabs.jp
* extras: ftp.tsukuba.wide.ad.jp
* updates: ftp.tsukuba.wide.ad.jp
Resolving Dependencies
--> Running transaction check
---> Package cpulimit.x86_64 1:0.2-1.20151118gitf4d2682.el6 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
==============================================================================================================
Package Arch Version Repository Size
==============================================================================================================
Installing:
cpulimit x86_64 1:0.2-1.20151118gitf4d2682.el6 epel 14 k
Transaction Summary
==============================================================================================================
Install 1 Package(s)
Total download size: 14 k
Installed size: 23 k
Is this ok [y/N]: y
Downloading Packages:
cpulimit-0.2-1.20151118gitf4d2682.el6.x86_64.rpm | 14 kB 00:00
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : 1:cpulimit-0.2-1.20151118gitf4d2682.el6.x86_64 1/1
Verifying : 1:cpulimit-0.2-1.20151118gitf4d2682.el6.x86_64 1/1
Installed:
cpulimit.x86_64 1:0.2-1.20151118gitf4d2682.el6
Complete!
# yum install cpulimit
Result:
Loaded plugins: fastestmirror, security
Setting up Install Process
Loading mirror speeds from cached hostfile
* base: ftp.tsukuba.wide.ad.jp
* epel: mirror.dmmlabs.jp
* extras: ftp.tsukuba.wide.ad.jp
* updates: ftp.tsukuba.wide.ad.jp
Resolving Dependencies
--> Running transaction check
---> Package cpulimit.x86_64 1:0.2-1.20151118gitf4d2682.el6 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
==============================================================================================================
Package Arch Version Repository Size
==============================================================================================================
Installing:
cpulimit x86_64 1:0.2-1.20151118gitf4d2682.el6 epel 14 k
Transaction Summary
==============================================================================================================
Install 1 Package(s)
Total download size: 14 k
Installed size: 23 k
Is this ok [y/N]: y
Downloading Packages:
cpulimit-0.2-1.20151118gitf4d2682.el6.x86_64.rpm | 14 kB 00:00
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : 1:cpulimit-0.2-1.20151118gitf4d2682.el6.x86_64 1/1
Verifying : 1:cpulimit-0.2-1.20151118gitf4d2682.el6.x86_64 1/1
Installed:
cpulimit.x86_64 1:0.2-1.20151118gitf4d2682.el6
Complete!
ラベル:
CentOS
CentOS: Installing Cpu Miner
Command:
$sudo yum -y groupinstall "Development Tools"
$ sudo yum -y install git libcurl-devel python-devel screen rsync
$ git clone https://github.com/bitzeny/cpuminer.git cpuminer
$ cd cpuminer/
$ ./autogen.sh
$ ./configure CFLAGS="-O3"
$ make
$sudo yum -y groupinstall "Development Tools"
$ sudo yum -y install git libcurl-devel python-devel screen rsync
$ git clone https://github.com/bitzeny/cpuminer.git cpuminer
$ cd cpuminer/
$ ./autogen.sh
$ ./configure CFLAGS="-O3"
$ make
CentOS: CPUMiner: Fixing libjansson error
Error message:
./minerd: error while loading shared libraries: libjansson.so.4: cannot open shared object file: No such file or directory
Command:
ln -s /usr/local/lib/libjansson.so.4 /usr/lib/libjansson.so.4
ldconfig
./minerd: error while loading shared libraries: libjansson.so.4: cannot open shared object file: No such file or directory
Command:
ln -s /usr/local/lib/libjansson.so.4 /usr/lib/libjansson.so.4
ldconfig
ラベル:
CentOS
Friday, September 1, 2017
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
# 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/
# 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:
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/
CentOS: Installing mod_ssl & openssl
Command:
# sudo yum install mod_ssl openssl
Result:
Loaded plugins: fastestmirror, security
Loading mirror speeds from cached hostfile
epel/metalink | 5.4 kB 00:00
* base: ftp.tsukuba.wide.ad.jp
* epel: ftp.riken.jp
* extras: ftp.tsukuba.wide.ad.jp
* updates: ftp.tsukuba.wide.ad.jp
base | 3.7 kB 00:00
cr | 2.9 kB 00:00
epel | 4.3 kB 00:00
epel/primary_db | 5.9 MB 00:00
extras | 3.4 kB 00:00
updates | 3.4 kB 00:00
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package mod_ssl.x86_64 1:2.2.15-60.el6.centos.5 will be installed
---> Package openssl.x86_64 0:1.0.1e-16.el6_5.14 will be updated
---> Package openssl.x86_64 0:1.0.1e-57.el6 will be an update
--> Finished Dependency Resolution
Dependencies Resolved
=================================================================================================================================================================
Package Arch Version Repository Size
=================================================================================================================================================================
Installing:
mod_ssl x86_64 1:2.2.15-60.el6.centos.5 updates 98 k
Updating:
openssl x86_64 1.0.1e-57.el6 base 1.5 M
Transaction Summary
=================================================================================================================================================================
Install 1 Package(s)
Upgrade 1 Package(s)
Total download size: 1.6 M
Is this ok [y/N]: y
Downloading Packages:
(1/2): mod_ssl-2.2.15-60.el6.centos.5.x86_64.rpm | 98 kB 00:00
(2/2): openssl-1.0.1e-57.el6.x86_64.rpm | 1.5 MB 00:00
-----------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 16 MB/s | 1.6 MB 00:00
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Updating : openssl-1.0.1e-57.el6.x86_64 1/3
Installing : 1:mod_ssl-2.2.15-60.el6.centos.5.x86_64 2/3
Cleanup : openssl-1.0.1e-16.el6_5.14.x86_64 3/3
Verifying : openssl-1.0.1e-57.el6.x86_64 1/3
Verifying : 1:mod_ssl-2.2.15-60.el6.centos.5.x86_64 2/3
Verifying : openssl-1.0.1e-16.el6_5.14.x86_64 3/3
Installed:
mod_ssl.x86_64 1:2.2.15-60.el6.centos.5
Updated:
openssl.x86_64 0:1.0.1e-57.el6
Complete!
# sudo yum install mod_ssl openssl
Result:
Loaded plugins: fastestmirror, security
Loading mirror speeds from cached hostfile
epel/metalink | 5.4 kB 00:00
* base: ftp.tsukuba.wide.ad.jp
* epel: ftp.riken.jp
* extras: ftp.tsukuba.wide.ad.jp
* updates: ftp.tsukuba.wide.ad.jp
base | 3.7 kB 00:00
cr | 2.9 kB 00:00
epel | 4.3 kB 00:00
epel/primary_db | 5.9 MB 00:00
extras | 3.4 kB 00:00
updates | 3.4 kB 00:00
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package mod_ssl.x86_64 1:2.2.15-60.el6.centos.5 will be installed
---> Package openssl.x86_64 0:1.0.1e-16.el6_5.14 will be updated
---> Package openssl.x86_64 0:1.0.1e-57.el6 will be an update
--> Finished Dependency Resolution
Dependencies Resolved
=================================================================================================================================================================
Package Arch Version Repository Size
=================================================================================================================================================================
Installing:
mod_ssl x86_64 1:2.2.15-60.el6.centos.5 updates 98 k
Updating:
openssl x86_64 1.0.1e-57.el6 base 1.5 M
Transaction Summary
=================================================================================================================================================================
Install 1 Package(s)
Upgrade 1 Package(s)
Total download size: 1.6 M
Is this ok [y/N]: y
Downloading Packages:
(1/2): mod_ssl-2.2.15-60.el6.centos.5.x86_64.rpm | 98 kB 00:00
(2/2): openssl-1.0.1e-57.el6.x86_64.rpm | 1.5 MB 00:00
-----------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 16 MB/s | 1.6 MB 00:00
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Updating : openssl-1.0.1e-57.el6.x86_64 1/3
Installing : 1:mod_ssl-2.2.15-60.el6.centos.5.x86_64 2/3
Cleanup : openssl-1.0.1e-16.el6_5.14.x86_64 3/3
Verifying : openssl-1.0.1e-57.el6.x86_64 1/3
Verifying : 1:mod_ssl-2.2.15-60.el6.centos.5.x86_64 2/3
Verifying : openssl-1.0.1e-16.el6_5.14.x86_64 3/3
Installed:
mod_ssl.x86_64 1:2.2.15-60.el6.centos.5
Updated:
openssl.x86_64 0:1.0.1e-57.el6
Complete!
Wednesday, August 30, 2017
CentOS: iptables: Fixing Webserver Accessibility (How secure now?)
Command:
# diff /etc/sysconfig/iptables /etc/sysconfig/iptables.org
Result:
1c1,2
< # Generated by iptables-save v1.4.7 on Wed Aug 30 00:09:28 2017
---
> # Firewall configuration written by system-config-firewall
> # Manual customization of this file is not recommended.
3,11c4,12
< :INPUT DROP [0:0]
< :FORWARD DROP [0:0]
< :OUTPUT ACCEPT [24:2320]
< -A INPUT -i lo -j ACCEPT
< -A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
< -A INPUT -p tcp -m tcp --dport 53 -j ACCEPT
< -A INPUT -p udp -m udp --dport 53 -j ACCEPT
< -A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
< -A INPUT -p tcp -m tcp --dport 443 -j ACCEPT
---
> :INPUT ACCEPT [0:0]
> :FORWARD ACCEPT [0:0]
> :OUTPUT ACCEPT [0:0]
> -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
> -A INPUT -p icmp -j ACCEPT
> -A INPUT -i lo -j ACCEPT
> -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
> -A INPUT -j REJECT --reject-with icmp-host-prohibited
> -A FORWARD -j REJECT --reject-with icmp-host-prohibited
13d13
< # Completed on Wed Aug 30 00:09:28 2017
Reference:
http://programmerbox.com/2013-12-24_vps_construct_procedure_manual/
# diff /etc/sysconfig/iptables /etc/sysconfig/iptables.org
Result:
1c1,2
< # Generated by iptables-save v1.4.7 on Wed Aug 30 00:09:28 2017
---
> # Firewall configuration written by system-config-firewall
> # Manual customization of this file is not recommended.
3,11c4,12
< :INPUT DROP [0:0]
< :FORWARD DROP [0:0]
< :OUTPUT ACCEPT [24:2320]
< -A INPUT -i lo -j ACCEPT
< -A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
< -A INPUT -p tcp -m tcp --dport 53 -j ACCEPT
< -A INPUT -p udp -m udp --dport 53 -j ACCEPT
< -A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
< -A INPUT -p tcp -m tcp --dport 443 -j ACCEPT
---
> :INPUT ACCEPT [0:0]
> :FORWARD ACCEPT [0:0]
> :OUTPUT ACCEPT [0:0]
> -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
> -A INPUT -p icmp -j ACCEPT
> -A INPUT -i lo -j ACCEPT
> -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
> -A INPUT -j REJECT --reject-with icmp-host-prohibited
> -A FORWARD -j REJECT --reject-with icmp-host-prohibited
13d13
< # Completed on Wed Aug 30 00:09:28 2017
Reference:
http://programmerbox.com/2013-12-24_vps_construct_procedure_manual/
ラベル:
CentOS,
diff utility,
iptables
Tuesday, August 29, 2017
CentOS: Adding User
Command:
# useradd USERNAME
# passwd USERNAME
Result:
Changing password for user USERNAME.
New password:
Retype new password:
passwd: all authentication tokens updated successfully.
Command:
# su USERNAME
$ cd ~
$ ls
$ pwd
Result:
/home/USERNAME
# useradd USERNAME
# passwd USERNAME
Result:
Changing password for user USERNAME.
New password:
Retype new password:
passwd: all authentication tokens updated successfully.
Command:
# su USERNAME
$ cd ~
$ ls
$ pwd
Result:
/home/USERNAME
ラベル:
CentOS
Monday, July 25, 2016
CentOS: iptables
Command:
# cat ./set_firewall
Result:
#!/bin/bash
# Flush all the chains in filter (default) table.
iptables -F
# Attempt to delete every non-builtin chain in filter (default) table.
iptables -X
# Set the policy for INPUT chain to DROP target.
iptables -P INPUT DROP
# Set the policy for FORWARD chain to DROP target.
iptables -P FORWARD DROP
# Set the policy for OUTPUT chain to ACCEPT target.
iptables -P OUTPUT ACCEPT
# Append rules to INPUT chain.
# Protocol of the rule is icmp (Internet Control Message Protocol) which is the protocol for ping.
# Target is ACCEPT.
iptables -A INPUT -p icmp -j ACCEPT
# Append rules to INPUT chain.
# The rule is for Loopback network interface.
# Target is ACCEPT.
iptables -A INPUT -i lo -j ACCEPT
# Append rules to INPUT chain.
# The rule is for tcp protocol on port 80.
# Target is ACCEPT
iptables -A INPUT -p tcp --dport 80 -j ACCEPT
# Append rules to INPUT chain.
# The rule is for tcp protocol on port 22.
# Target is ACCEPT
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
# Append rules to INPUT chain.
# The rule for packets after session ESTABLISHED and RELATED packets.
# Target is ACCEPT
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
# Dump iptables rules to stdout
iptables-save
Command:
# ./set_firewall
Result:
# Generated by iptables-save v1.4.21 on Tue May 24 23:44:34 2016
*nat
:PREROUTING ACCEPT [41489:3695453]
:INPUT ACCEPT [15:960]
:OUTPUT ACCEPT [628:160830]
:POSTROUTING ACCEPT [628:160830]
:OUTPUT_direct - [0:0]
:POSTROUTING_ZONES - [0:0]
:POSTROUTING_ZONES_SOURCE - [0:0]
:POSTROUTING_direct - [0:0]
:POST_public - [0:0]
:POST_public_allow - [0:0]
:POST_public_deny - [0:0]
:POST_public_log - [0:0]
:PREROUTING_ZONES - [0:0]
:PREROUTING_ZONES_SOURCE - [0:0]
:PREROUTING_direct - [0:0]
:PRE_public - [0:0]
:PRE_public_allow - [0:0]
:PRE_public_deny - [0:0]
:PRE_public_log - [0:0]
-A PREROUTING -j PREROUTING_direct
-A PREROUTING -j PREROUTING_ZONES_SOURCE
-A PREROUTING -j PREROUTING_ZONES
-A OUTPUT -j OUTPUT_direct
-A POSTROUTING -j POSTROUTING_direct
-A POSTROUTING -j POSTROUTING_ZONES_SOURCE
-A POSTROUTING -j POSTROUTING_ZONES
-A POSTROUTING_ZONES -o enp0s3 -g POST_public
-A POSTROUTING_ZONES -g POST_public
-A POST_public -j POST_public_log
-A POST_public -j POST_public_deny
-A POST_public -j POST_public_allow
-A PREROUTING_ZONES -i enp0s3 -g PRE_public
-A PREROUTING_ZONES -g PRE_public
-A PRE_public -j PRE_public_log
-A PRE_public -j PRE_public_deny
-A PRE_public -j PRE_public_allow
COMMIT
# Completed on Tue May 24 23:44:34 2016
# Generated by iptables-save v1.4.21 on Tue May 24 23:44:34 2016
*mangle
:PREROUTING ACCEPT [58667:5285859]
:INPUT ACCEPT [58666:5285283]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [28814:3788418]
:POSTROUTING ACCEPT [28814:3788418]
:FORWARD_direct - [0:0]
:INPUT_direct - [0:0]
:OUTPUT_direct - [0:0]
:POSTROUTING_direct - [0:0]
:PREROUTING_ZONES - [0:0]
:PREROUTING_ZONES_SOURCE - [0:0]
:PREROUTING_direct - [0:0]
:PRE_public - [0:0]
:PRE_public_allow - [0:0]
:PRE_public_deny - [0:0]
:PRE_public_log - [0:0]
-A PREROUTING -j PREROUTING_direct
-A PREROUTING -j PREROUTING_ZONES_SOURCE
-A PREROUTING -j PREROUTING_ZONES
-A INPUT -j INPUT_direct
-A FORWARD -j FORWARD_direct
-A OUTPUT -j OUTPUT_direct
-A POSTROUTING -j POSTROUTING_direct
-A PREROUTING_ZONES -i enp0s3 -g PRE_public
-A PREROUTING_ZONES -g PRE_public
-A PRE_public -j PRE_public_log
-A PRE_public -j PRE_public_deny
-A PRE_public -j PRE_public_allow
COMMIT
# Completed on Tue May 24 23:44:34 2016
# Generated by iptables-save v1.4.21 on Tue May 24 23:44:34 2016
*security
:INPUT ACCEPT [17193:1591366]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [28814:3788418]
:FORWARD_direct - [0:0]
:INPUT_direct - [0:0]
:OUTPUT_direct - [0:0]
-A INPUT -j INPUT_direct
-A FORWARD -j FORWARD_direct
-A OUTPUT -j OUTPUT_direct
COMMIT
# Completed on Tue May 24 23:44:34 2016
# Generated by iptables-save v1.4.21 on Tue May 24 23:44:34 2016
*raw
:PREROUTING ACCEPT [58667:5285859]
:OUTPUT ACCEPT [28814:3788418]
:OUTPUT_direct - [0:0]
:PREROUTING_direct - [0:0]
-A PREROUTING -j PREROUTING_direct
-A OUTPUT -j OUTPUT_direct
COMMIT
# Completed on Tue May 24 23:44:34 2016
# Generated by iptables-save v1.4.21 on Tue May 24 23:44:34 2016
*filter
:INPUT DROP [0:0]
:FORWARD DROP [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
COMMIT
# Completed on Tue May 24 23:44:34 2016
Command:
# iptables -L -v
Result:
Chain INPUT (policy DROP 4 packets, 128 bytes)
pkts bytes target prot opt in out source destination
0 0 ACCEPT icmp -- any any anywhere anywhere
0 0 ACCEPT all -- lo any anywhere anywhere
0 0 ACCEPT tcp -- any any anywhere anywhere tcp dpt:http
57 3900 ACCEPT tcp -- any any anywhere anywhere tcp dpt:ssh
0 0 ACCEPT all -- any any anywhere anywhere state RELATED,ESTABLISHED
Chain FORWARD (policy DROP 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
Chain OUTPUT (policy ACCEPT 29 packets, 7336 bytes)
pkts bytes target prot opt in out source destination
# cat ./set_firewall
Result:
#!/bin/bash
# Flush all the chains in filter (default) table.
iptables -F
# Attempt to delete every non-builtin chain in filter (default) table.
iptables -X
# Set the policy for INPUT chain to DROP target.
iptables -P INPUT DROP
# Set the policy for FORWARD chain to DROP target.
iptables -P FORWARD DROP
# Set the policy for OUTPUT chain to ACCEPT target.
iptables -P OUTPUT ACCEPT
# Append rules to INPUT chain.
# Protocol of the rule is icmp (Internet Control Message Protocol) which is the protocol for ping.
# Target is ACCEPT.
iptables -A INPUT -p icmp -j ACCEPT
# Append rules to INPUT chain.
# The rule is for Loopback network interface.
# Target is ACCEPT.
iptables -A INPUT -i lo -j ACCEPT
# Append rules to INPUT chain.
# The rule is for tcp protocol on port 80.
# Target is ACCEPT
iptables -A INPUT -p tcp --dport 80 -j ACCEPT
# Append rules to INPUT chain.
# The rule is for tcp protocol on port 22.
# Target is ACCEPT
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
# Append rules to INPUT chain.
# The rule for packets after session ESTABLISHED and RELATED packets.
# Target is ACCEPT
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
# Dump iptables rules to stdout
iptables-save
Command:
# ./set_firewall
Result:
# Generated by iptables-save v1.4.21 on Tue May 24 23:44:34 2016
*nat
:PREROUTING ACCEPT [41489:3695453]
:INPUT ACCEPT [15:960]
:OUTPUT ACCEPT [628:160830]
:POSTROUTING ACCEPT [628:160830]
:OUTPUT_direct - [0:0]
:POSTROUTING_ZONES - [0:0]
:POSTROUTING_ZONES_SOURCE - [0:0]
:POSTROUTING_direct - [0:0]
:POST_public - [0:0]
:POST_public_allow - [0:0]
:POST_public_deny - [0:0]
:POST_public_log - [0:0]
:PREROUTING_ZONES - [0:0]
:PREROUTING_ZONES_SOURCE - [0:0]
:PREROUTING_direct - [0:0]
:PRE_public - [0:0]
:PRE_public_allow - [0:0]
:PRE_public_deny - [0:0]
:PRE_public_log - [0:0]
-A PREROUTING -j PREROUTING_direct
-A PREROUTING -j PREROUTING_ZONES_SOURCE
-A PREROUTING -j PREROUTING_ZONES
-A OUTPUT -j OUTPUT_direct
-A POSTROUTING -j POSTROUTING_direct
-A POSTROUTING -j POSTROUTING_ZONES_SOURCE
-A POSTROUTING -j POSTROUTING_ZONES
-A POSTROUTING_ZONES -o enp0s3 -g POST_public
-A POSTROUTING_ZONES -g POST_public
-A POST_public -j POST_public_log
-A POST_public -j POST_public_deny
-A POST_public -j POST_public_allow
-A PREROUTING_ZONES -i enp0s3 -g PRE_public
-A PREROUTING_ZONES -g PRE_public
-A PRE_public -j PRE_public_log
-A PRE_public -j PRE_public_deny
-A PRE_public -j PRE_public_allow
COMMIT
# Completed on Tue May 24 23:44:34 2016
# Generated by iptables-save v1.4.21 on Tue May 24 23:44:34 2016
*mangle
:PREROUTING ACCEPT [58667:5285859]
:INPUT ACCEPT [58666:5285283]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [28814:3788418]
:POSTROUTING ACCEPT [28814:3788418]
:FORWARD_direct - [0:0]
:INPUT_direct - [0:0]
:OUTPUT_direct - [0:0]
:POSTROUTING_direct - [0:0]
:PREROUTING_ZONES - [0:0]
:PREROUTING_ZONES_SOURCE - [0:0]
:PREROUTING_direct - [0:0]
:PRE_public - [0:0]
:PRE_public_allow - [0:0]
:PRE_public_deny - [0:0]
:PRE_public_log - [0:0]
-A PREROUTING -j PREROUTING_direct
-A PREROUTING -j PREROUTING_ZONES_SOURCE
-A PREROUTING -j PREROUTING_ZONES
-A INPUT -j INPUT_direct
-A FORWARD -j FORWARD_direct
-A OUTPUT -j OUTPUT_direct
-A POSTROUTING -j POSTROUTING_direct
-A PREROUTING_ZONES -i enp0s3 -g PRE_public
-A PREROUTING_ZONES -g PRE_public
-A PRE_public -j PRE_public_log
-A PRE_public -j PRE_public_deny
-A PRE_public -j PRE_public_allow
COMMIT
# Completed on Tue May 24 23:44:34 2016
# Generated by iptables-save v1.4.21 on Tue May 24 23:44:34 2016
*security
:INPUT ACCEPT [17193:1591366]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [28814:3788418]
:FORWARD_direct - [0:0]
:INPUT_direct - [0:0]
:OUTPUT_direct - [0:0]
-A INPUT -j INPUT_direct
-A FORWARD -j FORWARD_direct
-A OUTPUT -j OUTPUT_direct
COMMIT
# Completed on Tue May 24 23:44:34 2016
# Generated by iptables-save v1.4.21 on Tue May 24 23:44:34 2016
*raw
:PREROUTING ACCEPT [58667:5285859]
:OUTPUT ACCEPT [28814:3788418]
:OUTPUT_direct - [0:0]
:PREROUTING_direct - [0:0]
-A PREROUTING -j PREROUTING_direct
-A OUTPUT -j OUTPUT_direct
COMMIT
# Completed on Tue May 24 23:44:34 2016
# Generated by iptables-save v1.4.21 on Tue May 24 23:44:34 2016
*filter
:INPUT DROP [0:0]
:FORWARD DROP [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
COMMIT
# Completed on Tue May 24 23:44:34 2016
Command:
# iptables -L -v
Result:
Chain INPUT (policy DROP 4 packets, 128 bytes)
pkts bytes target prot opt in out source destination
0 0 ACCEPT icmp -- any any anywhere anywhere
0 0 ACCEPT all -- lo any anywhere anywhere
0 0 ACCEPT tcp -- any any anywhere anywhere tcp dpt:http
57 3900 ACCEPT tcp -- any any anywhere anywhere tcp dpt:ssh
0 0 ACCEPT all -- any any anywhere anywhere state RELATED,ESTABLISHED
Chain FORWARD (policy DROP 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
Chain OUTPUT (policy ACCEPT 29 packets, 7336 bytes)
pkts bytes target prot opt in out source destination
Monday, July 18, 2016
CentOS: Quick Fixing the Locale Problem When Terminal.app Failed to Set Locale Environment Variables on Startup
Command:
$ locale
Result:
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: LC_ALL??????????????????: ??????????????????????
LANG=ja_JP.utf8
LC_CTYPE=UTF-8
LC_NUMERIC="ja_JP.utf8"
LC_TIME="ja_JP.utf8"
LC_COLLATE="ja_JP.utf8"
LC_MONETARY="ja_JP.utf8"
LC_MESSAGES="ja_JP.utf8"
LC_PAPER="ja_JP.utf8"
LC_NAME="ja_JP.utf8"
LC_ADDRESS="ja_JP.utf8"
LC_TELEPHONE="ja_JP.utf8"
LC_MEASUREMENT="ja_JP.utf8"
LC_IDENTIFICATION="ja_JP.utf8"
LC_ALL=
$ locale
Result:
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: LC_ALL??????????????????: ??????????????????????
LANG=ja_JP.utf8
LC_CTYPE=UTF-8
LC_NUMERIC="ja_JP.utf8"
LC_TIME="ja_JP.utf8"
LC_COLLATE="ja_JP.utf8"
LC_MONETARY="ja_JP.utf8"
LC_MESSAGES="ja_JP.utf8"
LC_PAPER="ja_JP.utf8"
LC_NAME="ja_JP.utf8"
LC_ADDRESS="ja_JP.utf8"
LC_TELEPHONE="ja_JP.utf8"
LC_MEASUREMENT="ja_JP.utf8"
LC_IDENTIFICATION="ja_JP.utf8"
LC_ALL=
Command:
$ LC_CTYPE=ja_JP.utf8
$ locale
Result:
LANG=ja_JP.utf8
LC_CTYPE=ja_JP.utf8
LC_NUMERIC="ja_JP.utf8"
LC_TIME="ja_JP.utf8"
LC_COLLATE="ja_JP.utf8"
LC_MONETARY="ja_JP.utf8"
LC_MESSAGES="ja_JP.utf8"
LC_PAPER="ja_JP.utf8"
LC_NAME="ja_JP.utf8"
LC_ADDRESS="ja_JP.utf8"
LC_TELEPHONE="ja_JP.utf8"
LC_MEASUREMENT="ja_JP.utf8"
LC_IDENTIFICATION="ja_JP.utf8"
LC_ALL=
Command:
$ date
Result:
2016年 5月 18日 水曜日 03:47:01 JST
CentOS: Setting System Locale
Command:
$ locale -a | grep ja
Result:
ja_JP
ja_JP.eucjp
ja_JP.ujis
ja_JP.utf8
japanese
japanese.euc
Command:
$ localectl set-locale LANG=ja_JP.utf8
$ localectl
Result:
System Locale: LANG=ja_JP.utf8
$ locale -a | grep ja
Result:
ja_JP
ja_JP.eucjp
ja_JP.ujis
ja_JP.utf8
japanese
japanese.euc
Command:
$ localectl set-locale LANG=ja_JP.utf8
$ localectl
Result:
System Locale: LANG=ja_JP.utf8
CentOS: Installing Sysstat
Command:
# yum install sysstat
Result:
Failed to set locale, defaulting to C
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: ftp.jaist.ac.jp
* extras: ftp.jaist.ac.jp
* updates: ftp.jaist.ac.jp
Resolving Dependencies
--> Running transaction check
---> Package sysstat.x86_64 0:10.1.5-7.el7 will be installed
--> Processing Dependency: libsensors.so.4()(64bit) for package: sysstat-10.1.5-7.el7.x86_64
--> Running transaction check
---> Package lm_sensors-libs.x86_64 0:3.3.4-11.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
==============================================================================================================
Package Arch Version Repository Size
==============================================================================================================
Installing:
sysstat x86_64 10.1.5-7.el7 base 296 k
Installing for dependencies:
lm_sensors-libs x86_64 3.3.4-11.el7 base 40 k
Transaction Summary
==============================================================================================================
Install 1 Package (+1 Dependent package)
Total download size: 336 k
Installed size: 1.1 M
Is this ok [y/d/N]: y
Downloading packages:
(1/2): lm_sensors-libs-3.3.4-11.el7.x86_64.rpm | 40 kB 00:00:01
(2/2): sysstat-10.1.5-7.el7.x86_64.rpm | 296 kB 00:00:06
--------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 55 kB/s | 336 kB 00:00:06
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : lm_sensors-libs-3.3.4-11.el7.x86_64 1/2
Installing : sysstat-10.1.5-7.el7.x86_64 2/2
Verifying : sysstat-10.1.5-7.el7.x86_64 1/2
Verifying : lm_sensors-libs-3.3.4-11.el7.x86_64 2/2
Installed:
sysstat.x86_64 0:10.1.5-7.el7
Dependency Installed:
lm_sensors-libs.x86_64 0:3.3.4-11.el7
Complete!
# yum install sysstat
Result:
Failed to set locale, defaulting to C
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: ftp.jaist.ac.jp
* extras: ftp.jaist.ac.jp
* updates: ftp.jaist.ac.jp
Resolving Dependencies
--> Running transaction check
---> Package sysstat.x86_64 0:10.1.5-7.el7 will be installed
--> Processing Dependency: libsensors.so.4()(64bit) for package: sysstat-10.1.5-7.el7.x86_64
--> Running transaction check
---> Package lm_sensors-libs.x86_64 0:3.3.4-11.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
==============================================================================================================
Package Arch Version Repository Size
==============================================================================================================
Installing:
sysstat x86_64 10.1.5-7.el7 base 296 k
Installing for dependencies:
lm_sensors-libs x86_64 3.3.4-11.el7 base 40 k
Transaction Summary
==============================================================================================================
Install 1 Package (+1 Dependent package)
Total download size: 336 k
Installed size: 1.1 M
Is this ok [y/d/N]: y
Downloading packages:
(1/2): lm_sensors-libs-3.3.4-11.el7.x86_64.rpm | 40 kB 00:00:01
(2/2): sysstat-10.1.5-7.el7.x86_64.rpm | 296 kB 00:00:06
--------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 55 kB/s | 336 kB 00:00:06
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : lm_sensors-libs-3.3.4-11.el7.x86_64 1/2
Installing : sysstat-10.1.5-7.el7.x86_64 2/2
Verifying : sysstat-10.1.5-7.el7.x86_64 1/2
Verifying : lm_sensors-libs-3.3.4-11.el7.x86_64 2/2
Installed:
sysstat.x86_64 0:10.1.5-7.el7
Dependency Installed:
lm_sensors-libs.x86_64 0:3.3.4-11.el7
Complete!
CentOS: Installing OpenSSH Server
Command:
# yum -y install openssh-server
Result:
Failed to set locale, defaulting to C
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: ftp.jaist.ac.jp
* extras: ftp.jaist.ac.jp
* updates: ftp.jaist.ac.jp
Package openssh-server-6.6.1p1-25.el7_2.x86_64 already installed and latest version
Nothing to do
# yum -y install openssh-server
Result:
Failed to set locale, defaulting to C
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: ftp.jaist.ac.jp
* extras: ftp.jaist.ac.jp
* updates: ftp.jaist.ac.jp
Package openssh-server-6.6.1p1-25.el7_2.x86_64 already installed and latest version
Nothing to do
CentOS: Print Release Informations
Command:
$ cat /etc/centos-release
Result:
CentOS Linux release 7.2.1511 (Core)
Command:
$ cat /etc/os-release
Result:
NAME="CentOS Linux"
VERSION="7 (Core)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="7"
PRETTY_NAME="CentOS Linux 7 (Core)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:centos:centos:7"
HOME_URL="https://www.centos.org/"
BUG_REPORT_URL="https://bugs.centos.org/"
CENTOS_MANTISBT_PROJECT="CentOS-7"
CENTOS_MANTISBT_PROJECT_VERSION="7"
REDHAT_SUPPORT_PRODUCT="centos"
REDHAT_SUPPORT_PRODUCT_VERSION="7"
Command:
$ cat /etc/redhat-release
Result:
CentOS Linux release 7.2.1511 (Core)
Command:
$ cat /etc/system-release
Result:
CentOS Linux release 7.2.1511 (Core)
$ cat /etc/centos-release
Result:
CentOS Linux release 7.2.1511 (Core)
Command:
$ cat /etc/os-release
Result:
NAME="CentOS Linux"
VERSION="7 (Core)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="7"
PRETTY_NAME="CentOS Linux 7 (Core)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:centos:centos:7"
HOME_URL="https://www.centos.org/"
BUG_REPORT_URL="https://bugs.centos.org/"
CENTOS_MANTISBT_PROJECT="CentOS-7"
CENTOS_MANTISBT_PROJECT_VERSION="7"
REDHAT_SUPPORT_PRODUCT="centos"
REDHAT_SUPPORT_PRODUCT_VERSION="7"
Command:
$ cat /etc/redhat-release
Result:
CentOS Linux release 7.2.1511 (Core)
Command:
$ cat /etc/system-release
Result:
CentOS Linux release 7.2.1511 (Core)
ラベル:
CentOS
Monday, May 16, 2016
CentOS: Installing net-tools
List of programs in net-tools package:
Command to install:
- arp
- hostname
- ifconfig
- ipmaddr
- iptunnel
- mii-tool
- nameif
- netstat
- plipconfig
- rarp
- route
- slattach
Command to install:
$ sudo yum install net-tools
Sunday, May 15, 2016
CentOS: Downloading CentOS 7 Minimal iso
Link:
http://buildlogs.centos.org/rolling/7/isos/x86_64/CentOS-7-x86_64-Minimal.iso
http://buildlogs.centos.org/rolling/7/isos/x86_64/CentOS-7-x86_64-Minimal.iso
ラベル:
CentOS
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