Category Archives: Linux

Integrating SSH PKI with Active Directory using PBIS-Open on Ubuntu 16.04

Posted on January 4, 2018 by Ahmed Tawfik

Long Article Warning! You can skip all this and go directly to the script at the end. This resolves the dilemma of managing SSH public keys on servers that are integrated with Active Directory using PBIS-Open, it allows you to … Continue reading →

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How to update davmail gateway configuration with new ssl certificate

Posted on December 30, 2017 by Ahmed Tawfik

Davmail calculates the SHA-1 hash for any exchange server that it connects to and places it in its davmail.properties configuration file. When the exchange server changes the SSL certificate, you have to update it in the davmail.properties file, or else … Continue reading →

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7za extract file to target folder

Posted on December 25, 2017 by Ahmed Tawfik

7za x compressed_file.001 -o/scratch where: x: to extract compressed_file.001: The file which is going to be extracted -o: specify output folder /scratch: the output folder That’s it, Enjoy! Source: http://7zip.bugaco.com/7zip/MANUAL/commands/extract_full.htm

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How to quickly divide a file into smaller segments with 7zip on RedHat

Posted on December 24, 2017 by Ahmed Tawfik

I have a very large file ~ 1.7 TB that’s causing me some issues with its transfer over NFS. I use 7z to split it into into multiple smaller files and then transfer them: 7za -v900g -mx0 a MY_BIG_FILE_SPLITTED.7z /MY_BIG_FILE … Continue reading →

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How to restart the gnome-shell if it glitches or slows down

Posted on December 24, 2017 by Ahmed Tawfik

Alt+F2 Type r Press Enter There you go!

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