If you use Debian as Host System for Virtual Servers the „virt-manager“ Package is broken! no keymap input no VM Console Control no VT-Switch possible Fix: run sudo virsh edit "vm-name" remove all „spice“ display + audio entrys !! open sudo virt-manager go details and and ADD Display VGA + VGA-Adapter select VNC!! save + […]
Kategorie: Open Source Software Bug Reports
Ubuntu Debian MAJOR Bug: WIFI randomly disconnected at 100% Signal no internet
Ubuntu Debian (All Linux OS) Bug: WIFI randomly disconnected at 100% Signal no internet System : ubuntu 18.04 LTS Kernel 5.7 amd64 Router openwrt LAN/WIFI: disabled ipv6 dhcp ! Bug: Wifi lost internet connection randomly on 100% Signal beside the Gateway-Router! Problem: No Error Logs, no Kernel Messages Tested: Replaced Mini-PCI WIFI 5/6 Cards various […]
NEXTCLOUD OWNCLOUD BUG FAIL2BAN
FAIL2BAN blocks access to „.ocdata“ file! Apache Error Log: ..AH01630: client denied by server configuration: … cloud/data/.ocdata create with a Custom Rule for FAIL2BAN do: $sudo nano /etc/fail2ban/filter.d/apache-auth.local insert: [apache-auth] ignoreregex = nextcloud/data/.ocdata do: $sudo service fail2ban restart Check Log: tail -f n50 /var/log/apache2/error.log Remark: Sometimes the Login take long time after Enter the Password […]
Nextcloud Owncloud Calling Home
I did a deeper firewall test on my fresh installed OpenWRT Router and activated a „Ads Blacklist“ after this my owncloud Share Login loops! Result: Seems that some IP’s of the „Update Check Tool“ Servers, which is installed inside the PHP-Kit is blacklisted. So it seems the Code calls home! With this option its possible […]
Nextcloud Owncloud Opensource Risk’s
If you are current using Nextcloud / Owncloud or other PHP-Kits for File Handling you should know these remarks: Based on this Article You must know: Details of Security about your current used PHP Versions (7.X) Details of your used Database Version (MySQL..) Details of hardened OS and Webserver Version (Apache,Firewall,fail2ban,file policys, selinux, apparmor filter) […]
Unity Ubuntu Topbar disappeared
I have often seen that the Unity Topbar of Ubuntu LTS is hidden or not clean loaded after Login. It’s Caching Problem of Unity (Compiz) and Lightdm, if the PC is not clean rebooted or started. Howto fix: sudo rm -fr ~/.cache/compizconfig-1 \ && sudo rm -fr ~/.compiz && sudo service lightdm restart Now relogin […]
Android: Upgrade Downgrade Kindle Fire Firmware Bug
If you use a Amazon Kindle Fire 2015 (45$) Generation „Ford“ or other Android Tablets,Smartphones you must know some MAJOR Informations about the Firmware Handling. If you were asked by the Fire OS or Android to „Upgrade“ the Firmware OS, DON’T PUSH YES it without READING DETAILS! I prefer ALWAYS NO FIRST! Use ALWAYS a SDCARD […]
WordPress: SEO Ranking bad after setting „read more“ tags
After some weeks of cleaning up my blog, i remarked a very bad ranking from under the first 10 on google to nirvana What did i change? saved wp-login with htaccess to non-public set post content with „read more“ buttons Background: Search engine like google wasn’t able to pull content of posts which are cut […]
Security: Harden DSL Routers and Networks against attacks
Last days there was a high count of news about the Bot Attacks against T-Com Telekom Router devices. To understand the behavior about this up comming security problems you should know following points : Every network supported device can be a goal for a attack ( Routers, Modems, PC, Fridges,IP-TV, IP Switches, IP-Cams…) You have […]
Fritzbox: Freezing Wifi if USB 3.0 is used
Today i was touched by a Bug of my fritzbox 7490, after installing a USB 3.0 Stick as NAS the Wifi connect was broken to all devices! After some search on net i found this post: http://avm.de/service/fritzbox/fritzbox-7490/wissensdatenbank/publication/show/1636_WLAN-Stoerungen-bei-angeschlossenem-USB-3-0-Geraet/ Background: The high magnetic frequency’s of USB 3.0 data transfer inside the cable or stick hangup the WIFI […]