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Month: January 2020

Install and Configure Checkmk on CentOS 8 and Monitor Linux Hosts using Checkmk agent

January 18, 2020January 19, 2020 1 Comment

If you have important production servers or critical services in your network, having monitoring tools becomes a must. In case of any hardware or software failures, it is crucial to get alerted as soon as possible and take appropriate actions […]

Grzegorz Juszczak Bash, Linux

Configure Postfix SMTP Relay (Smart Host) on CentOS 8

January 17, 2020January 31, 2021 1 Comment

Postfix is a Mail Transport Agent (MTA), which can be easily configured as a private relay host, passing mail to another mail servers. Unlike Sendmail, Postfix is considered as a very secure MTA, offering a high level of flexibility and […]

Grzegorz Juszczak Bash, Linux

Configure Sendmail MTA on CentOS 8 to work as SMTP Relay

January 5, 2020January 18, 2020 1 Comment

Sendmail is an easy to implemant, lightweight electronic Mail Transport Agent (MTA), which enables you to automate the process of sending e-mail messages from your Linux host. It can play a significant role as a background mechanism for processing outbound […]

Grzegorz Juszczak Bash, Linux

kali 2020.4 openstack / kvm images


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