Today I’ll show, how to configure email sending with your Debian Linux. The ability to send mails is a very useful feature for every long-running server machine, it’s an easy and common way to notify the administrator in case of any problems. Here are configuration steps for mail-sending with Exim and Google Mail account (Google Apps accounts work the same way too). first of all, we need to have Exim running....
SSH (Secure Shell) allows simple establishment of an encrypted and authenticated connection between computers. In this article I will focus on establishing SSH tunnels without using a password by using asynchronous key pair. This approach is especially very useful in machine-to-machine communication. The idea grounds on asymmetric cryptography, that describes a concept of a key -pair of a private and public keys. In this article it’s sufficient to know, that:...
Today i will share some thought on software RAID under linux with you. Sometimes you need to store data relative save and high available. That is where RAID solutions come in to play. Especially RAID 1 (mirroring) based solutions provide better availability of your data. But don’t forget to use backups anyway :) Some days ago i installed RAID 1 on Debian Lenny (amd64 arch) without any troubles for now. <UPD Dez 2015: Here missing reference to initial tutorial from Jerry> The Partitions used in the RAID /dev/md0/ should both enable boot flag if you want to boot from RAID....
Sometimes there is a need to extract some files on the Linux console. Below you’ll find a list of the most common methods for that. tar Tar archives are the most common way of distributing bundles of files under Linux or UNIX. The .tar file represents a bundle of files packaged with GNU tar program. To extract such files use: tar xf somearchive.tar tar xvf somearchive.tar Provide option f if you want to extract the content of files....