You can use the wall command to send a message to every user on a system. General syntax of wall command is as follows: wall Message Message … …. .. When the message is complete, press Control-D. 1) To display message “Disk failure system will be down for 30 minute” to all users use wall [...]
Forcing the restore of a transfered cPanel account , even if the new system says the username is all ready in use /scripts/restorepkg –force –skipres account.tar.gz Incoming search terms:plesk 10 dnsmng: service /etc/init d/named failed to start (–start dns) (1)
If you get the error: Windows could not start because the following files is missing or corrupt \WINDOWS\SYSTEM32\CONFIG\SYSTEM or \WINDOWS\SYSTEM32\CONFIG\SOFTWARE Insert and boot from your WindowsXP CD. At the first R=Repair option, press the R key Press the number that corresponds to the correct location for the installation of Windows you want to repair. Typically [...]
IA32: To boot system for emergency mode (boot from CD) 1) Boot from Solaris 1st CD 2) At Solaris Device Configuration Assistant, Press F2 key 3) Then press ENTER key twice 4) At Identified Devices, Press F2 key 5) At Boot Solaris, select CD to boot system 6) At next screen system will ask about [...]
In many cases, the GRUB boot loader can mistakenly be deleted, corrupted, or replaced by other operating systems. The following steps detail the process on how GRUB is reinstalled on the master boot record: Boot the system from an installation boot medium. Type linux rescue at the installation boot prompt to enter the rescue environment. Type chroot [...]
Version 1.0 Author: Falko Timme <ft [at] falkotimme [dot] com> Last edited: 02/07/2006 In this HowTo I will show how to install and configure DenyHosts. DenyHosts is a tool that observes login attempts to SSH, and if it finds failed login attempts again and again from the same IP address, DenyHosts blocks further login attempts [...]
Whenever a Linux system CPU is occupied by a process, it is unavailable for processing other requests. Rest of pending requests must wait till CPU is free. This becomes a bottleneck in the system. Following command will help you to identify CPU utilization, so that you can troubleshoot CPU related performance problems. Finding CPU utilization [...]
You must be thinking that I’m kidding. Nope I’m not. Let me explain. After installing Linux the first thing you should do is turn off all services and deny all incoming traffic till you configured the box securely. But why…? A default installation could run many nonessential services. These services can turn into security risks. [...]
Linux kernel includes magic system request keys. It was originally developed for kernel hackers. However, you can use this hack to reboot, shutdown or halt computer safely (remember safe reboot/shutdown == flush filesystem buffers and unmount file system and then reboot so that data loss can be avoided). This is quite useful when Linux based [...]
Shell script to get uptime, disk usage, cpu usage, RAM usage, system load, etc; from multiple Linux servers and output the information on a single server in html format #!/bin/bash # Shell script to get uptime, disk usage, cpu usage, RAM usage,system load,etc. # from multiple Linux servers and output the information on a single [...]
