If you want to free space on Backups you can use find to select a special month: find -newerct "1 Sep 2023" ! -newerct "1 DEC 2023" -delete This command removes files created from 01.Sep.2023 to 01.Dec.2023. ..very useful..
Category: Linux Support
Webserver Port 80 open or close
If you hold a website and use SSL/HTTPS with Certificates theres is often the question should i block Port 80? The most Admins think after the Major Changes of the Browsers to pull first HTTPS Port 443 they can close the HTTP Port 80. But you should NOT do it! Why? most Bots scan at first Port 80 for Content or for Listening Web Servers. More Details: https://letsencrypt.org/de/docs/allow-port-80/
Setup Openwrt Xiaomi AX3200 BR01 11-2021 Redmi AX6S
Today i got the openwrt Firmware to run on my new xiaomi ax3200 Router, the Problem is that the Default Firmware open a Upload-Channels to “api.wifimi.com” Many online wiki told that its impossible to flash the BR01 Version after Production Date 09.21 To flash you need a Serial UART to USB Adaptor and 4 Pin-Lab Cables connected to the Mainboard from bottom without open the Case!! Remark: Plug Router-Pin-RX to TX at the UART Adapter and Router TX to RX-UART (Crossover!!!) Voltage + is 3,3 Volts!! not 5Volts!! here some Pictures https://github.com/mikeeq/xiaomi_ax3200_openwrt#uart-flash REMARK the Pins from bottom must be seen MIRRORED!!! […]
Debian Ubuntu: CEWE Fotobuch installieren unter 64bit Linux
Problem: Cewe Fotobuch Software wurde für 32bit Linux geschrieben lässt sich daher nach der Installation wegen fehlender Libraries nicht starten. Lösung: Download der Software von http://www.cewe-fotobuch.de/download/ Konsole öffnen (ähnlich Windows Dos Fenster – keine Mausgesteuerte Installation) die Datei Namens setup_Mein_CEWE_Fotobuch.tgz nach /tmp kopieren entpacken des Archives (.tgz) starten des Perlscripts nachträgliche Installation der 32bit Framedateien (Libraries) Copy&Paste: sudo cp setup_Mein_CEWE_Fotobuch.tgz /tmp sudo tar -xvzf setup_Mein_CEWE_Fotobuch.tgz sudo ./install.pl sudo apt-get install ia32-libs-gtk sudo apt-get install ia32-libs lib32gomp1 Unter Suse Linux 64bit sollte das gleiche Problem bestehen, hier mit Yast die 32bit Libraries suchen und installieren. ..und klappt.. Update 2023: Die Software […]
Apache2 evasive Problems with WordPress
If you use Apache2 / Apache24 and anti-hammering tools like the Modul evasive and security2 as addon fail2ban than you can fail blogging. Problems: Apache2 Module “evasive” must be fine tuned for WordPress go /etc/apache2/ if you use default enabled auto-safe drafts of posts can let you look like a Attacker so disable auto save by wp-config set “define(‘AUTOSAVE_INTERVAL’, 86400);” !! on small systems redis and other cache technics can generate too additional hidden “posts” traffic to the Apache2 & SQL checkout the system by disable all security addons and fine tune settings, if ok enable them again.. try wordpress […]
Major Tools for your IT Systems
A must “USE” in these insecure days: nmap Portscan Tool use nmap -PN IP-Address to check failed Firewall Settings! arp-scan Network Scan to find active devices iftop to detect traffic and used Ports on a physical network Interface! ps aux show active processes on a Linux System htop more human friendly Process Monitor iotop human friendly traffic monitor from CPU/RAM to Drives Daily check Error Logs! Use always Firewalls and Disk/File Encryption! Don’t trust Hardware Protection (TPM) Chips most do communicate by clean signals on copper which can be read out by hardware hacking or magnetic fields! NEVER leave Hardware […]