Author Archives: Ahmed Tawfik

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About Ahmed Tawfik

Cybersecurity Professional, Systems Engineer, OSS & Linux Geek

How to globally change a Gnome/Unity schema setting for your desktop

Posted on January 16, 2018 by Ahmed Tawfik

Simply do the following: Edit the attribute you need to change in a specific schema inside /usr/share/glib-2.0/schemas/[your_schema_name], e.g. sudo vi /usr/share/glib-2.0/schemas/com.canonical.canonical.indicator.session.gschema.xml Change the value you need, in my case I wanted to disable the user-show-menu key, so I changed it from … Continue reading →

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How to install Dell OMSA on Ubuntu 16.04

Posted on January 10, 2018 by Ahmed Tawfik

I use Dell OMSA to manage iDrac, and to be able to do that, I need to install it on my Ubuntu 16.04 laptop. The instructions on the Dell OpenManage page doesn’t specify the correct key servers, so please use … Continue reading →

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How to check which files are taking the most space in Google Drive

Posted on January 7, 2018 by Ahmed Tawfik

I was getting almost out of quota and had to remove many files. However, I didn’t know which files are taking the most space, as there wasn’t an obvious way to to that from the Google Drive interface! I had … Continue reading →

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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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