How to Check gcc Version on Linux Server ?
Question : How to check gcc version ? What commands to check gcc version ? Answers : 1. You can find the version number of gcc using the version option…
How to Change the Hostname on Linux CentOS 6.2 Server
In this post, i will show you on how to change the Hostname on linux CentOS 6.2. I have tested this on RHEL 6, CentOS 5.5 and CentOS 6.2. Reboot…
How to set the SGID bit on a Directory on CentOS 6.2 Linux Server
SetGID or “set group ID upon execution” are the Unix access rights flags that allow users to run an executable with the permissions of the executable’s group. They are often…
How to Install Wireshark on CentOS 6.2
In this post, i will show on how to install Wireshark on CentOS 6.2 server. Wireshark is a free and open-source network packet analyzer that will help to capture network…
How to Backup and Restore MySQL Database on CentOS/RHEL
In this post, i will share on how to backup and restore MySQL database on Linux server. I have tested this on my CentOS and RHEL servers. MySQLDump — A…
How to Check Apache Error Log and Access Log file
The purpose of logging in a server is to diagnose some issues. The common way to start the troubleshooting is to look at logs. For apache httpd server, all the…
How to Deny ICMP Ping Request on CentOS 6.2
Ping is a computer network administration utility used to test the reachability of a host on an Internet Protocol (IP) network. Ping operates by sending Internet Control Message Protocol (ICMP)…
How to Install php-mcrypt on CentOS 6.2
Symptoms : This error appeared when i try to use phpmyadmin on authentication type as cookie. mcrypt is necessary if you want to use cookie based authentication with phpymyadmin. The…
How to Install and Configure NTP Server On CentOS 6.2
In this post, i will show you on how to configure NTP server for time adjustment. NTP, Network Time Protocol, it is an Internet protocol used to synchronize the clocks…
How to Fix “/etc/rndc.key: permission denied” for named Service Error
Symptoms : I keep getting this error every time I try to start the named daemon service : [root@centos62 ~]# service named start Starting named: [FAILED] Then i checked at…
How to Configure Bind Chroot DNS Server on CentOS 6.2
In this post, i will show you on how to configure Bind Chroot DNS Server on CentOS 6.2. Assumed that you have installed Bind Chroot DNS. 1. Install Bind Chroot…
How to Install Bind Chroot DNS Server on CentOS 6.2
In this post, i will guide you on how to install Bind Chroot DNS server on CentOS 6.2. DNS is the Domain Name System that maintains a database that can…