Tag: ufw

Major Bug: UFW stopped thru logrotate

On Debian Sid i have seen that ufw service is stopped on logrotate!! Its a bad known bug! Workaround: Set all Services like Dovecot, Postfix to listen on LOCALHOST (127.0.0.1) if not needed over Internet Enable ONLY encrypted AUTH (Login) to Postfix! (TLS 1.2) Disable unneeded Services ! like Samba, FTP… move config from /etc/logrotate.d/ufw […]

Postfix: Automatic UFW Firewall Updates

If you use a Mail Server with Postfix you got daily Spam Attacks by Scripts: How to fix? Install ufw Firewall Run a Scanner Script as  cronjob On Debian/Ubuntu: Install ufw: sudo apt-get update && sudo apt-get install ufw && sudo ufw enable && sudo  ufw logging off Scan Script: sudo nano /home/user/firewall-update.sh: #!/bin/bash # […]

Apache: Analyse Logs Spam Bots

If you admin a Apache Webserver, you see often weekly thousand of visits a day on your Blogs. Background: These are no real users, this visits are made by Spam Bots in my Logs like Xovi.de or xovibot.net Bots! On info pages this Company says Admins should disallow crawl by robots.txt, but they IGNORE the settings! […]

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