Ivan Tomica

Tag: CentOS

Total 21 Posts

Start SSH in Plesk

Recently I’ve had a situation that on one of the servers with Plesk panel installed on it SSH service was not working. Unfortunately there is no way to restart the service via panel for some reason. You can restart other services, but not ssh, probably because service itself is not

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Nested Tmux

Ever wanted to have tmux session inside of tmux session? Don’t know how to control the one inside of current tmux session? Easily: Ctrl+b Ctrl+b COMMAND So basically, you need to send your prefix twice. You can also use: Ctrl+b+b COMMAND

Checking disk activity with ZFS – iostat

Pretty neat little command that I wasn’t aware before, but quick check of the manpage would bring it to my attention. :-) To check current disk activity stats on your zpool you can use: zpool iostat -v POOLNAME You can of course omit pool name, without it it’ll show statistics

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Installing cPanel on low memory system

This is more of an reminder for myself when trying to install cPanel system on cheap, low memory system, just to test something out. On CentOS 7 cPanel requires at least 1024MB of RAM, while on CentOS 6 it requires 768MB of RAM. If you have less than that install

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How to configure Bind with IPv6 on cPanel

This one is pretty simple, and if you properly set up your network settings when installing server it should work automatically, if not go to the Basic setup window: Navigate to the IPv6 settings section and enter your server main IPv6 address. Save settings and WHM should automatically rebuild your

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Installing Let’sEncrypt SSL on cPanel DNSOnly

If you’re using cPanel DNS only you probably know that AutoSSL feature isn’t available on it. Reason for that is because DNSOnly cPanel installation doesn’t have web server running as classic version does. To circumvent this you may use certbot standalone mode to issue a Let’s encrypt certificate. Command you

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How to set up ZFS on CentOS 7

Recently I have started thinking about backups on my personal web server (on which this blog is hosted on). Simplest solution I have come up with is to just mount additional drive to the server, format it as ZFS, sync stuff to it and then just snapshot that drive. This

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Self hosted email

There are many reasons why would somebody want to host their own email server. There are many advantages for doing this but there are also many drawbacks. Setting up your own mail server can certainly be a great learning experience filled with discoveries about different set of technologies, protocols and

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Enable mod_status in Apache 2.4

Thing that I miss with Apache on CentOS 7, and in the matter of fact, every SystemD based distribution is running service httpd status and immediately seeing full Apache status along with number of active connections, server uptime etc. This article will focus on how to enable mod_status in Apache

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