Regular expressions are extremely useful in extracting information from text such as code, log files, spreadsheets, or even documents. As an unix administrator we do regularly use the regex to perform various problem diagnosis , automation or remediation tasks. And it is almost impossible to imagine the life of unixadmin without RegEx usage. This [...]
This is second post from the ISCSI administration series ( you can refer the first post here RHEL 6 – ISCSI Administration Series – Configuring ISCSI Server and Client ) . In this post, I will be showing you an hands-on exercise to expand a ISCSI LUN which is already configured from the client and actively in use. [...]
ISCSI Server Configuration on RHEL 6 Overall Steps : Install the RPM required for ISCSI Target Administration Enable the ISCSI Target Services Configure the ISCSI target to share the storage Attach Luns to the ISCSI Target Share the ISCSI Target to specific Client Machines Add CHAP user authentication ISCSI target Save the configuration [...]
This is a following post for my previous SAN migration post Solaris host level SAN migration (with SVM) from Clariion to VMAX. As discussed earlier in my previous post, many organisations started migrating their Server storage from Old legacy SAN devices ( e.g. EMC Clariion ) to new powerful SAN storage ( e.g. EMC Symetrix [...]
This is my fourth post in RHEL 6.3 LDAP implementation Series. And the purpose of this post is to give extra extra muscle to troubleshoot the issues that you encounter during or after the LDAP implementation. In this post i am documenting the troubleshooting tips that i used to solve various questions that I [...]
LDAP server authentication without encrypted communication is not recommendable for any organization. In this Post, I will be discussing the procedure to configure LDAP server and client to use encrypted authentication and communication. This is third Post in LDAP implementation Series. Previous posts for your reference RHEL 6.3 – LDAP Series – [...]
About Author : My name is Ramkumar Ramadevu ( Ramdev ). I have started writing about enterprise unix system administration since 2009 just for my own knowledge reference, and then later I have made this site available for everyone, for better purpose. ... read more