After setting up fail2ban its time to check which ports are open. Potentially each open port should be protected using fail2ban.
Fail2ban helps a lot to get rid of unwanted traffic to your server which cleans your log files a lot. In this post I will describe how to setup fail2ban on your server.
Using fail2ban it is easy to ban unwanted users from your servers by denying access to it using the local firewall capabilities.
This post describes how to install grub after the computer has been booted from a recovery CD.
This post is a small reminder (for me) how to resize an existing virtualbox disk. Continue reading “VirtualBox: resize disk”
Catalina_home is the tomcat installation (unzipped archive), catalina_base is the folder of a server instance. By default, catalina_base is set to catalina_home. But when it comes to upgrading Tomcat installation, having the possibility to roll back or to run more than one instance of Tomcat on the same server, it is easier to separate those two folders from each other. Continue reading “Tomcat: split catalina_home and catalina_base”
Sieve is used to filter messages directly on the imap server. In this way, it can replace local mail filter rules in the user’s email agent. This is very useful, if more then one email agent is used – e.g. if the same server is used from different computers or operatint systems. In my case, the company notebook is Windows driven (using Thunderbird) and my workstation is running on linux using Evolution as a mail client. My mails are filtered by Sieve so I do not need to edit filter rules for each client.
The current fuel level for Epson printers can be discovered using the escputils. Continue reading “Getting the ink level for epson printers”