HP launches first Atom-based Moonshot servers. It is a blade server kind of concept with advantages of cost , power and cooling. Hope you already seen the custom Hyperscale computing designs of google facebook servers. Here in HP Moonshot Systems the individual Computers are bring in to a single 4U chassis. One 4U server is powered with 45 blades. see …
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Automatically start virtual machine (guest) Xen Server
It is difficult to start all guest servers whenever the Xen server (Host) restarts. Sometimes the Host Server restarts are unplanned. Services (guest) will be unavailable after restarts. This can be solved by enable feature called “Auto-Start”. Follow the steps to enable this option in Xen Server. Open your Xen – Center Go to the server which you want to …
Read More »Command line tool to Kill remote desktop connections from XP
Error : The terminal server has exceeded the maximum number of allowed connections We have explained the command to reset the remote desktop connections from a windows 7 PC, As you know windows RDP client will give an error if multiple users are connected through terminal service. Its including console access. In critical situations we have to accrue the session. …
Read More »Linux Logs that an Administrator need to Monitor
Linux maintains a record of a various logs that helps a administrator to keep track of important events including system error messages, system startups, and system shutdowns. The logs are in ASCII text format and hence can be viewed with a text editor. The centralized logging is provided by two daemons are syslogd and klogd. Almost all the logfiles generated …
Read More »Prevent accidental reboots in Linux Servers
CTRL+ATL+DELETE will be the most commonly used shortcut key when we work on windows . Watch out that you never use this key (CTRL+ATL+DELETE) on linux server. The default Linux installation treats CTRL+ATL+DELETE command to immediately reboot the Linux system without any warning signals. To avoid this to happen we need to edit the inittab file /etc/inittab The inittab file …
Read More »Two ways to resolve Terminal server limitation error
Error : The terminal server has exceeded the maximum number of allowed connections Windows servers can establish only two remote desktop connections simultaneously. But if the session is in Disconnected mode ( If its close without log off ) you can access this session again. But if any two sessions are logged in you cannot get a new RDP Connection. …
Read More »Mail Administration – controlling spams
An Electronic Mail that you all know is a better and fastest mean of communication.To implement intuitive , efficient and useful Emails we need to control spams / virus mails. For a mail administrator its too much tough to control spamming mails. There are many organizations like SpamHaus which help in controlling spams. By watching the below statics you can see …
Read More »Server / Network Documentation with SYSID
Documentation is always tedious task for system administrators, especially there are 50’s and 100’s of servers. Recently I planned to document all my servers. After a long search I reached SYSID site, it is an open source, nice VB Script and python script for creating decent looking documents, It is very nice to document windows servers and desktops, The project …
Read More »Know the service running in a port – Linux
In our previous article we explained the steps for windows. Here you can find the steps to identify the service running in a port on linux . Here we used commands “fuser” and “PS”. I am using apache2 web server on port 80. Replace your port number with 80 (my example with port 80 ) Run following command to find …
Read More »Find which application/service is running in a port – Windows
Most of the applications are using standard ports, some cases user or application will assign different ports for the application. For example Port 80 is the default port for IIS, if you are trying to start a different web applications it will say error message like “port 80 already in use” . Or you start the third-party web application before …
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