Top-level category for all posts/articles relating to Linux system administration.
Following from a previous article where I demonstrated how to synchronise data to a remote host using lsyncd, this one with show how to deal with the below problem I faced. The problem I faced […]
Based on rsync, lsyncd is a demonised implementation that monitors for file modifications, and triggers a synchronisation if detected. Here I am using Ubuntu 18.04 at both ends but the process should pretty much be […]
The easiest way to reset the root users mysql password on most Debian systems is to use the debian-sys-maint user. The login details for which can be found below: With the password found in there, […]
For more detailed instructions, see the official site. Add the apt repository information by creating the linux.dell.com.sources.list file: To verify the package signature, add the following repository key to apt: Update apt with new repository […]
I have an old Debian 7.11 box that needs an SSL certificate renewed. I want to replace the existing, manually installed certificate issued by Comodo. You can check the expiry date with something like: Given […]
When you attach a new storage device, you will need to first create a new partition and format it with a filesystem before you can make use of it. To view all attached devices, issue […]
Today I had a request to open a particular port. Once I’d put the required rule in place, I ran a port scan and found the port is still reporting as closed. This means either […]
To replace the default certificate, you first need to generate a certificate and matching private key. I did this against my Organisations CA. See here for more information on how to do that. First log […]
HP provides a command line utility called HPE Smart Storage Administrator (HPE SSACLI) used to configure, manage and monitor their RAID storage controllers. This application has changed its name over the years but is now […]
There are a number of tools that will allow you to generate secure passwords including urandom, OpenSSL, GPG and pwgen. I will briefly demo these below. OpenSSL The below generates a random string of 14 […]
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