You can login to a remote Linux server without entering password in 3 simple steps using ssky-keygen and ssh-copy-id as explained in this article. ssh-keygen creates the public and private keys. ssh-copy-id copies the local-host’s public key to the remote-host’s authorized_keys file. ssh-copy-id also assigns proper permission to the remote-host’s home, ~/.ssh, and ~/.ssh/authorized_keys. This [...]
Linux
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. This is an jumpstart guide that explains how to install Dell OMSA on [...]
Photo courtesy of B Naveen Kumar dmidecode command reads the system DMI table to display hardware and BIOS information of the server. Apart from getting current configuration of the system, you can also get information about maximum supported configuration of the system using dmidecode. For example, dmidecode gives both the current RAM on the system [...]
This is a guest post written by SathiyaMoorthy. Using ramfs or tmpfs you can allocate part of the physical memory to be used as a partition. You can mount this partition and start writing and reading files like a hard disk partition. Since you’ll be reading and writing to the RAM, it will be faster. [...]
Nagios is hands-down the best monitoring tool to monitor host and network equipments. Using Nagios plugins you can monitor pretty much monitor anything. I use Nagios intensively and it gives me peace of mind knowing that I will get an alert on my phone, when there is a problem. More than that, if warning levels [...]
When you call DELL customer support for any help, they will ask for either Service Tag or Express Service Code. You also need service tag to download drivers and documentations from DELL support website. When you have physical access to the system, you can easily identify the service tag affixed on the body of the [...]
In our previous articles, we discussed how to setup ssh key based authentication to perform ssh and scp without password under the following three scenarios: OpenSSH to OpenSSH OpenSSH to SSH2 SSH2 to SSH2 In this article, I’ll explain how to perform ssh and scp from SSH2 (local-host) to OpenSSH (remote-host) with no password. 1. [...]
GNU Midnight Commander (mc) is a powerful text based file manager for Unix. mc gives an jumpstart for Windows power-users who would like to transition to Unix. It also has several advanced features to keep experienced Unix users happy. mc can run from any Unix terminal. If your terminal can execute vi, you can execute [...]