Category CentOS

Howto add a user with root permission on CentOS 7

Howto add a user with root permission on CentOS 7

CentOS

For any reason, you need add a user with root permission on CentOS 7. It’s not security and not recommend in live system. But we may need that for any urgent support, we can create that based on this topic.

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Howto install tcpdump on Centos 7.x and RHEL

Howto install tcpdump on Centos 7.x and RHEL

CentOS

Tcpdump is package capture command which helps us to troubleshooting and sniffer packages on Centos and RHEL.

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Howto configure login banner for SSH on Centos 7 and RHEL

Howto configure login banner for SSH on Centos 7 and RHEL

redhat-centos

Login banner on Centos shows some warning messages when ssh session connected to CentOS Server.

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Howto install gcc and development tools on Centos 7.x and RHEL

Howto install gcc and development tools on Centos 7.x and RHEL

centos

GCC and development Tools such as autoconf, automake, flex, c++ compiler, and bison.

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Howto install pip on Centos 7.x and RHEL

Howto install pip on Centos 7.x and RHEL

CentOS

Pip is tool for package management and installation on Python.

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Howto install nmap on Centos 7.x and RHEL

Howto install nmap on Centos 7.x and RHEL

nmap

nmap (Network Mapper) is a free and open source utility. Here, we will use it to scan ports and security risks for servers and network devices.

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Howto disable SELinux on Centos 7.x and RHEL

Howto disable SELinux on Centos 7.x and RHEL

CentOS

SELinux is a Linux feature that provides the mechanism for supporting access control security policies. By default, when you installed the linux operation system, The SELinux service is enabled,

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Howto install telnet client on Centos 7.x and RHEL

Howto install telnet client on Centos 7.x and RHEL

CentOS

Telnet is a user command and it’s TCP/IP protocol for accessing remote computers. Through Telnet, an administrator or another user can access server remotely.

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Howto install MariaDB CentOS 7

Howto install MariaDB CentOS 7CentOS

MariaDB is a  replacement for MySQL. It is easy to install, offers many speed and performance improvements, and is easy to integrate into most MySQL deployments.

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Howto configure Static IP Address on Centos 7

Howto configure Static IP Address on Centos 7

Interface MTU

Step 1: Check your network interface name and status

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