If you run a embedded Linux PC like raspi often some Linux Commands fail without error messages, cause the hardware performance is low tech. Same i have seen on the split command.. to split a 50GB Photos-Archive File to 4Gb on a USB Drive i found out that: sudo split -b 4096m -d -u Photos.tgz Photos-Archive_ fix the job.. Cause option -u disable IO-Caching over the 2.0 USB Port to the RAM of the raspi that the Data of the Output Stream is written direct to the Drive.
If you are a Newbie on AWS Glacier Cloud Backup you want to use a simple Backup Uploader you can use FastGlacier inside Wine! Major Info: Glacier puts only Files up to 4GB size, split 50GB Tar/Zip Files to 4GB!! Setup AWS free Account !! Go to IAM create User, set User Role to Glacier full access Write down User and Password key at IAM now go right to you loved Cloud Area like Frankfurt or Asia Setup new vault, logout.. install wine install winetricks dotnet40 Framework install FastGlacier have fun.. sudo apt-get install wine sudo apt-get winetricks Run winetricks […]
If you use a Toshiba Canvio 3tb Drive at a raspi then smartmontools will not see the usb drive. Try: sudo smartctl -t long -d sat -s on /dev/sdb -t test long or short -d drive protocol sata = sat -s enforce smart which is off by the usb drive firmware wait XXX Minutes then: sudo smartctl -H -d sat -s on /dev/sdb get status..
Current a lot of sites blogging about memcached attacks on Servers here some details: Memcached Servers need a installed and running Service called „memcached“ Websites need a php-plugin like php7.0-memcached to connect via API to the memcached Service The Memcached Service uses a own Config File at debian /etc/memcached.conf By default it MUST listen to localhost or socket Admins MUST setup a FIREWALL like „ufw“ (iptables) and MUST check own Server for OPEN PORTS with nmap The Problem is that Attackers can run Scripts against to your Server in a 10^6 Range like a BOTNET !! with ONE PC cause […]
If you want to enforce the use of DuckDuckgo.com instead of google.com do: Edit at the PC the „hosts“ File on: Linux /etc/hosts Windows C:\Windows\System32\drivers\etc insert at last: 18.104.22.168 google.com #ip of duckduckgo or 22.214.171.124 126.96.36.199 google.com #ip of duckduckgo 188.8.131.52 bing.com #ip of duckduckgo or 184.108.40.206 220.127.116.11 yahoo.com #ip of duckduckgo or 18.104.22.168 ..reboot and test on a Browser Session after google.com you see duckduckgo.com Remark: Most DSL Routers do offer the edit of the hosts File too, do same there and ALL devices redirected! Don’t forget to reboot! This Solution works only on IPv4 Networks, to enforce the […]
Under heavy load the Debian Kernel 4.14-13 crashes on high memory load and let the CPU freeze. Not really funny so rollback to older version
Apparmor has a current bug with the Kernel 4.14 on Debian and seems Ubuntu too, it blocks MySQL and other services from clean run. Bug touches Network Stack of the Kernel
After Ubuntu published the latest Kernel Patches for Meltdown and Spectre the Kernel 4.4.0-104/109-generic let Intel Graphics freeze or hang on Compiz with Unity. Howto fix: Install the latest Kernel 4.4.0-112-generic do: sudo apt-get install linux-image-4.4.0-112-generic sudo apt-get install linux-image-extra-4.4.0-112-generic reboot then: sudo apt-get autoremove –purge -y This removes older kernels and save Space! Do test the PC for hanging again!!!