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A systemd service define an application than can be managed by systemd, thus it enables you to start your database on linux boot and also to shut it down on linux shutdown.Furthermore it allows other systemd services to wait for… Continue Reading →
Maybe you specify the wront user or group in your systemd service. Or another case, rare, that I’ve met in my work place: your application is executed by the forbidden uid / gid: 65535 So what you can do with… Continue Reading →
SELinux context not changed after semanage fcontext and restorecon Verify the order in which your SELinux rules will be applied You have the order in which the SELinux rules have been added. It is this order that will be followed… Continue Reading →
You can find a lot about this error on internet, but most often they are the simplest answers using package manager to install the missing module. But it’s not always the solution. Firstly, why do you need tkinter? Do you… Continue Reading →
Recently my software experience helped me to point where was the problem with a php source code given by developers. Developers thought the problem was a sysadmin misconfiguration with the miss php libraries or something like this because with their… Continue Reading →
The following examples treat the case of a traditionnal partitionning. If you use Logical Volume Manager (LVM) it will be as easy than this but I’ll describe it in an another post. First, extend your block storage In OCI dashboard,… Continue Reading →
In this post I’ll just summurize all the advantages of LVM over traditionnal partionning. LVM add a logical layer that allows all these advantages: You can combine different physical disks in the same volume group, and create a partition over… Continue Reading →
When installing your new SSL certificate, after reloading or restarting apache you’re facing “failed to retrieve rpm info”? Don’t panik, it’s just SELinux that is playing with you. First, install policycoreutils-gui in order to have a more explicit error message… Continue Reading →
CIFS, SMB and NFS are protocols. And Samba is an implementation of SMB protocol on Linux OS. SMB (Server Message Block) SMB is a network protocol created by IBM for the share of resources (files and printers) in local networks…. Continue Reading →
/var/run/utmp => shows who is currently connected to the system. Not all the programs use utmp, thus you can have more users connected than displayed in utmp. /var/log/wtmp => is an historical record of utmp data /var/log/btmp => record of… Continue Reading →