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CentOS Debian FTP Server Network Proxmox Security Shell Windows

Set a range of ports in iptables

How to list a range of ports in iptables config file you can read there

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CentOS Debian Security Shell

ssh without a password but with key file

it is so comfortable to avoid using a password to get ssh access

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Shell

time estimating within “time” shell command

In case if you need to get data how long your bash script or command takes time you could use variations of the “time” command

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Linux kernel & processes Shell

SSL checking CLI and BASH scripts

How to check when will expired SSL certificate by domain?

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Proxmox Shell

VM don’t stop or shutdown in Proxmox

When you are faced with issue time out in case of sending stop or shut down VM within the console or GUI let’s try to kill process belongs to these VM

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E-mail server Linux kernel & processes Shell

Postfix queue and other tips

To see message’s queue we can use the command:

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FTP Server Linux kernel & processes Security Shell

vsftp write permissions enabling

After installation ftp server vsftp we have to make enable users writing permissions

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Linux kernel & processes Shell

Local time settings in Linux

To check the current date and time settings:

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Linux kernel & processes Shell

CLI or Terminal goes to be colour

How to switch on a colored terminal by CLI?

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Debian Linux kernel & processes Shell

Debian buster reboot and shutdown system