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1. Admin's command line cheat sheet Admin's command line cheat sheet

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   # Admin's command line cheat sheet

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   ## Arguments, variables and parameters

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   ### Argumets

2. howto howto Public

   Useful and easily forgettable experiences from developer's hacking solutions...

3. Fail2Ban - SMTP fiters that helps me... Fail2Ban - SMTP fiters that helps me resolve attacked mail server with Postfix and Dovecot

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   ## content of: /etc/fail2ban/jail.local

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   [mail-smtp]

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   enabled   = true

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   logpath   = /var/log/mail.log

4. 4-2-cz/ip-list-status-check 4-2-cz/ip-list-status-check Public

   IP List Status Check (fe.: Can check online/offline status of IP addresses from /etc/hosts)

   Shell

5. dnscheck dnscheck Public

   Forked from olof/dnscheck

   DNSCheck code, DNS delegation quality checker.

   Perl

6. ImapSync ImapSync

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   #! /bin/sh

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   # imapcopy -- Sync IMAP accounts (from server account A to server account B)

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   # Copyright (C) 2016 Frantisek Preissler, <github@ntisek.cz>

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   # Released under the terms of The MIT License