OMSA is a web based application to manage DELL PowerEdge Servers. Using OMSA you can perform proactive system monitoring, system diagnosis, troubleshoot hardware issues and configure RAID etc., You can also view and manage hardware’s embedded system management (ESM) log using OMSA.
Resetting MySQL Admin Password in Plesk – Linux
How Do I Disable iptables Firewall?
Login as root user on your dedicated or cloud server.
Enter the following three commands to disable firewall.
Cacti on CentOS
Do the following steps to prepare your Dedicated or cloud server for Cacti monitoring software:
Required software(s)You need to install the following software on RHEL / Fedora / CentOS Linux:MySQL Server : Store cacti data.NET-SNMP server - SNMP (Simple Network Management Protocol) is a protocol used for network management.PHP with net-snmp module - Access SNMP data using PHP.Apache / lighttpd / ngnix webserver : Web server to display graphs created with PHP and RRDTOOL.Change Hostname CentOS / Ubuntu
Hostname change procedure on CentOS / Ubuntu
Open the terminal or login to the remote server using ssh client. Edit /etc/sysconfig/network file, enter:
# vi /etc/sysconfig/network
Check Apache Version on a Dedicated Server
1. Login to your dedicated server as root user.
2. Use the following command:
# /usr/local/apache/bin/httpd -v
Server version: Apache/2.2.16 (Unix)
Server built: Feb 6 2012 11:41:41
Checking Your Dedicated Server for a DDOS Attack
You can use the following commands on a Linux server to determine if your dedicated server is being DDOS attacked.
# netstat -anp |grep ‘tcp\|udp’ | awk ‘{print $5}’ | cut -d: -f1 | sort | uniq -c | sort –n
This command will show you the list of IP’s which have logged in is maximum number of connections to your server.
How to Use sudo to Assign Root Access to a User
Using Netstat Command
Netstat is a tool in the Linux which can be used to monitor network services. It dictates you about the processes that are using a port. Netstat displays all the ports in use and used by all of the processes, however, you can limit those to only a specific port simply by using the “grep” command.
