This is a simple problem in the end that cost me serious troubleshooting time. Hopefully you found this article and it can save you some of what I lost. You may encounter a problem when running a script on the Linux CLI that results in error: bad substitution and a Read more…
UPDATE 20 SEP 2020: As it goes, this remains a problem as autoremove is simply not a well rounded solution for this. Yes, autoremove will remove old kernels, but it also removes other software and libraries that can still be in use. It doesn’t seem to perform all the proper Read more…
One of the best parts of a Linux OS is that you can often patch on the fly without a need for reboot afterwards. The only thing that does definitively need a reboot is after a kernel patch. Sometimes, it isn't possible to issue the reboot right away, so the system Read more…
FindMyHash is a great utility for checking hashes across various sites for pre-determined hash values, accepting both single hashes and hash files with support for a large variety of hash types (MD4, MD5, SHA1, SHA256, RMD160, LM, NTLM, MYSQL, CISCO7 or JUNIPER). Unfortunately, the native tool doesn't currently offer the Read more…
The released script will take a given log directory, normally your website log directory, and search it for attempts to exploit the server using the recently released GNU Bourne Again Shell (bash) vulnerability also known as Shell Shock. Once it identifies these entries, it will output them into a separate Read more…
I needed to create a user, grant them super user sudo privileges, update user account passwords and expire them across a number of different servers so that the actual user could log in and be forced to change their password to a (hopefully) secure one after I was complete. Initially, Read more…
This is quite the little zinger from time to time so I thought I would jot down a quick post on it, mainly for my memory, and for anyone else who might be looking for a similar solution. For example, when you run the following, you could be required to Read more…