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 packets and tries to display that packet data as detailed as possible. This post assumed that you have set up local yum repository using your […]

How to Add Atomic Repository to RHEL 6


In This post, i will show on how to install Atomic repository to Red Hat Enterprise Linux 6 (RHEL 6). Atomic repository was archived here : Follow this steps to download and prepare Atomic yum repository RHEL 6. 1. Download using wget command : [root@rhel6 ~]# wget –2012-01-24 19:42:14– Resolving… […]

How to Set the Vsftpd Server Banner Message on RHEL 6

This post will guide you on how to configure Vsftpd welcome banner to every new user that connects, set the banner_file parameter and place a suitable welcome message on Red Hat Enterprise Linux 6 (RHEL 6). Vsftpd is a GPL licensed FTP server for UNIX systems, including Linux. It is secure and extremely fast and […]

Why “portmap unrecognized service” on RHEL 6/CentOS 6

Question : During the deployment of Samba and NFS services on one of the RHEL 6 server, I’m hit by this message when trying to start, stop and restart service portmap : [root@rhel6 ~]# service portmap start portmap: unrecognized service   Answer : Portmap is replaced by rpcbind on some linux distributions such as Fedora […]

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 Database Backup Program, Click for more info. The mysqldump client is a backup program originally written by Igor Romanenko. It can be used to dump […]

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 log is normally stored at “/var/log/httpd” as below : [root@centos62 ~]# ls /var/log/httpd/ access_log error_log How to Continuously Check Apache Error Log file : [root@centos62 […]

How to Get the Best VPS Hosting Deals and Informations

Virtual Private Server (VPS) is a term used by internet hosting services which offers a good balance between total control (root access privilege) and a tight budget. Having a VPS account is just like operating a dedicated server. VPS is cost effective way to manage multiple sites and ideal for mission critical applications and websites. […]

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) echo request packets to the target host and waiting for an ICMP response. ICMP protocol is used by ping command to check the connectivity between […]