Tag: howto

Split Files on embedded Linux Systems

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.

Amazon AWS Howtos

Here some Bookmarks if you want to try Amazon AWS Cloud Services like S3 (Cloud File Storage), EC2 (VM Instances..) Howtos / Basics : https://github.com/open-guides/og-aws#aws-data-transfer-costs Remark: AWS Services mostly priced by data transfers and online time! Checkout daily “Billing Monitor” ! Amazon AWS: https://aws.amazon.com/ Remark: S3 is the Standard Cloud Storage, cheaper is S3-IA or long term Backups use “Glacier” where you first upload files to S3 and set a “Rule” on a “Bucket” move files to Glacier Long Term Backup! Amazon Admin Console: https://aws.amazon.com/de/console/ Security: Howto Create ENCRYPTED Containers for AWS on Linux? Klick At the End.. don’t forget […]

WordPress Themes SEO Rating

If you use WordPress for a Blog and you think about a Theme Change for a new Look you should now some points: Check new Themes for available Updates Check new Theme for User Feedback Check new Theme how often its downloaded, if often used Search Engines can handle the code Check the new Theme some Weeks and control active the Ranking on Search Engines (like Webmaster Tools), cause bad readable Code is ranked down or broken internal links and bookmarks can forward robots into nirvana Check the new Theme on various Browsers, Opera, Chrome, Firefox, IE, Mobile Browsers and […]

LEDE OPENWRT WIFI USB SETUP

Test Setup Futro S500 with USB Wifi Dongle Realtek RTL8192CU PCI Riser Card with Realtek Gigabit LEDE 17.XX Trunk Kernel 4.14 Download latest Version from openwrt.org select x86/64 extract the compressed image (*ext4*img.gz) and dump it with “dd” to CF-Card 1GB Sample for Clean Setup like TP-Link Router Firmware: You need to install this packages by “opkg update && opkg install package name && reboot”: base-files – 184-r6198-ba5f700 busybox – 1.27.2-3 dnsmasq – 2.79rc1-1 dropbear – 2017.75-5 e2fsprogs – 1.43.7-1 firewall – 2017-11-07-c4309372-2 fstools – 2018-02-11-3d239815-1 fwtool – 1 hostapd – 2017-08-24-c2d4f2eb-6 hostapd-common – 2017-08-24-c2d4f2eb-6 hostapd-utils – 2017-08-24-c2d4f2eb-6 iftop – […]

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) See ALWAYS PHP-Kits of opensource with the trust of NON HARDENED SOFTWARE (prefer NON-PUBLIC ACCESS) You can ACCESS this Software thru SSH TUNNELS with a local running non-caching PROXY (privoxy) Use the SSH Tunnels on unknown Ports and Login via Key Files which must be […]

Ubuntu 16.04 Compiz Hang 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 KernelĀ 4.4.0-112-generic do: sudo apt-get install linux-image-4.4.0-112-generic sudo apt-getĀ 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!!!