SLES vs RHEL

Submitted by zubanst on Sun, 09/20/2020 - 09:05

Two names stand out when it comes to Enterprise Linux Sever market: Red Hat with Red Hat Enterprise Linux (RHEL), and SuSE, offering SUSE Linux Enterprise Server (SLES)

Both support ARM64, x86-32, x86-64 and Power Architecture, and they are both suited for servers, mainframes, and workstations, both have HA configurations and long support lifecycle of 10 years or more

Tools like YaST are the reason why SLES is known to have a less steep initial learning curved compared with RHEL, but then, both serve the enterprise market well, which means:

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OpenDKIM and Postfix on Ubuntu server

Submitted by zubanst on Mon, 08/05/2019 - 16:52

About DKIM

DKIM is an Internet Standard that enables a person or organization to associate a domain name with an email message, as such, claiming responsibility for the message. At its core, DKIM is powered by asymmetric cryptography. The sender's Mail Transfer Agent (MTA) signs every outgoing message with a private key. The recipient retrieves the public key from the sender's DNS records and verifies if the message body and some of the header fields were not altered since the message signing took place.