Archive for the 'Systems' Category

 

 

Nov 07 2008

Additional Swap in File on Linux/Solaris

Published by under Linux,Solaris

You need more swap but there’s no more disk space left to create a partition? Here’s a quick and easy fix creating a swap file on the existing filesystem. No reboot needed! Solaris Linux Do not use swap files on a personal computer that is configured to “suspend to disk” since it requires a dedicated […]

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Sep 04 2008

Access X11 Applications via SSH and Putty

Published by under Linux

You would like to access X11 applications on your server, but it is only reachable with SSH? Nevermind with Putty! Putty allows you to create an SSH tunnel in which the X11 flow is encapsulated: X11 forwarding.   xorg-x11-xauth has to be installed on the server side to be authenticated on X. Launch a graphical […]

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Aug 30 2008

Channel Bonding on Linux

Published by under Linux

Channel bonding – or port truncking – gives the ability to apply a policy to a group of network interfaces. It is then possible to load-balance the traffic accross different ports, or keep one aside for failover.   Module Loading Declare the channel bonding bond0 interface into /etc/modprobe.conf # Channel Bonding alias bond0 bonding options […]

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Aug 29 2008

Restrict LDAP / NIS User Access on Unix

Published by under Ldap,Linux

A lot of networks use LDAP or NIS to authenticate users on Linux servers and any Unix flavours. There is no policy control by default and all users in the central LDAP database have access to all servers.Access can be restricted to some of the accounts adding them into the default passwd file if the […]

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Aug 29 2008

Central Logging with Cacti

Published by under Linux

I looked for a long time for a piece of software that allows to manage messages sent to a central syslog server. Logwatch sends email reports containing tons of messages, or focused on some applications. Logs are usually not being looked at and forgotten. I then found out a Cacti module could do the job, […]

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