All Items

This page is an overview of all items on this website, including tutorials, articles, scripts, software and more. It is sorted on date, most recent first.

  1. atop is broken on Ubuntu 16.04 (version 1.26): trap divide error
  2. Backup OpenStack object store or S3 with rclone
  3. Openstack Horizon, remove the loading modal with uBlock Origin
  4. Distributed load testing with Tsung
  5. Run software on the tty1 console instead of getty login on Ubuntu 14.04 and 16.04
  6. Check HTTP status code for a page on all DNS records
  7. Burn in testing for new Hypervisor and Storage server hardware
  8. Openstack Soft Delete - recover deleted instances
  9. Running WPS-8 (Word Processing System) on the DEC(mate) PDP-8i and SIMH
  10. Traceroute IPv6 to Smokeping Target config
  11. Ansible: access group vars for groups the current host is not a member of
  12. Sparkling Network
  13. haproxy: restrict specific URLs to specific IP addresses
  14. OpenStack: Quick and automatic instance snapshot backup and restore (and before an apt upgrade) with nova backup
  15. Create a PDP-8 OS8 RK05 system disk from RX01 floppies with SIMH (and get text files in and out of the PDP-8)
  16. Overflow the Investigatory Powers Bill!
  17. Build a FreeBSD 11.0-release Openstack Image with bsd-cloudinit
  18. Nitrokey gnuk firmware update via DFU
  19. MySQL restore after a crash and disk issues
  20. Firefox History stats with Bash
  21. Create /etc/shadow crypted password entries
  22. Mouse movement via the keyboard with xdotool and xbindkeys
  23. IPSEC VPN on Ubuntu 16.04 with StrongSwan
  24. Nagios 4 + Nagiosgraph (latest) installation on Ubuntu
  25. Ansible - Create OpenStack servers with Ansible 2.0 and the os_server module and a dynamic inventory
  26. FST-01 gnuk firmware update via USB
  27. Ansible - create playbooks and role file and folder structure
  28. Reset iptables to ACCEPT all (backup and remove all existing rules)
  29. Nitrokey Start: Getting started guide (gnuk openpgp token)
  30. Nitrokey HSM/SmartCard-HSM and Raspberry Pi web cluster
  31. Raspberry Pi unattended upgrade Raspbian to Debian Testing
  32. Storing arbitraty data in the Nitrokey HSM/SmartCard-HSM with Elementary Files (EF)
  33. Use the Nitrokey HSM or SmartCard-HSM with sc-hsm-embedded, mod_nss and Apache (read only module)
  34. Decrypt/Extract Nitrokey HSM/SmartCard-HSM RSA private keys
  35. Use the Nitrokey HSM or SmartCard-HSM with mod_nss and Apache
  36. Get started with the Nitrokey HSM or SmartCard-HSM
  37. HTTP Strict Transport Security for Apache, NGINX and Lighttpd
  38. Toggling in a simple program DEC PDP-8 and PiDP-8 using the switch register
  39. Ansible - Add an apt-repository on Debian and Ubuntu
  40. Migrating personal webapps and services
  41. Build a FreeBSD 10.3-release Openstack Image with bsd-cloudinit
  42. IPv6 in a Docker container on a non-ipv6 network
  43. Active Directory and Exchange Command Line Powershell
  44. Let's Encrypt with DirectAdmin, now built in!
  45. Recap of week 04, 2016
  46. Recap of week 03, 2016
  47. Ansible playbook for GoAccess Log Analyzer
  48. Recap of week 02, 2016
  49. Deborphan cleanup until no more orphaned packages left
  50. Recap of week 01, 2016
  51. Microsoft Office 2013 and 2010 on Linux
  52. Recap of week 53, 2015
  53. Recursively find all [installed] package dependencies
  54. Recap of week 52, 2015
  55. IPSEC VPN on Ubuntu 15.10 with StrongSwan
  56. IPSEC VPN on Ubuntu 15.04 with StrongSwan
  57. Recap of week 51, 2015
  58. Forward or save outgoing email with Exim
  59. Recap of week 50, 2015
  60. Generate hashes of files with rhash for archival storage
  61. Let's Encrypt with DirectAdmin or other Web Control Panels
  62. Linux Containers
  63. Encrypt and decrypt files to public keys via the OpenSSL Command Line
  64. Sign and verify text/files to public keys via the OpenSSL Command Line
  65. Make OpenELEC/Kodi work with the Sitecom CN-524/ Cambridge Silicon Radio (CSR) 8510 A10 Bluetooth USB adapter on the Raspberry Pi.
  66. Ansible - Only do action if on specific distribution (Debian, Ubuntu, CentOS or RHEL) or distribution version (ubuntu precise, ubuntu trusty)
  67. Install Ubuntu Linux on the LG Chromebase
  68. Running TSS/8 on the DEC PiDP-8/i and SIMH
  69. Running Adventure on the DEC PDP-8 with SIMH
  70. Find all services using libssl to restart after an OpenSSL update
  71. Stong SSL Security on lighttpd
  72. Strong SSL Security on nginx
  73. Strong SSL Security on Apache2
  74. Openstack - (Manually) migrating (KVM) Nova compute virtual machines
  75. The awesomely epic guide to KDE
  76. Filing Effective Bug Reports
  77. Raspberry Pi Arcade Machine
  78. OpenSSL command line Root and Intermediate CA including OCSP, CRL and revocation
  79. systemd: Don't fear change
  80. OpenSSL: Manually verify a certificate against a CRL
  81. Keep messages secure with GPG
  82. How I got a valid SSL certificate for my ISP's main domain, xs4all.nl
  83. Olimex OlinuXino A20 LIME2 mainline 4.0.0 kernel, u-boot and debian rootfs image building tutorial
  84. Automating Openstack with cloud init run a script on VM's first boot
  85. Build a Flexible and Powerful System with Arch Linux
  86. Ada Lovelace and The Analytical Engine
  87. Solve word puzzles with bash
  88. Python: build dynamic web pages
  89. Euclid's algorithm: recursion and python
  90. Openstack Glance Image Download, download Openstack images
  91. Installing Virtual Machines with virt-install, plus copy pastable distro install one-liners
  92. Remove Installatron from a (Directadmin) server
  93. Raspberry Pi FM radio transmitter with Buttons
  94. Olimex OlinuXino A20 LIME2 Minimal Debian 7 Image
  95. OpenVZ/Proxmox - pre-backup all container dump script
  96. Filtering IMAP mail with imapfilter
  97. Broken Corrupted Raspberry Pi SD Card
  98. Shared Git repository over ssh for multiple users
  99. Get all IP ranges from an AS number
  100. pfSense allow web interface access on WAN from specific IP
  101. IPSEC VPN on Centos 7 with StrongSwan
  102. HTTP Public Key Pinning Extension HPKP for Apache, NGINX and Lighttpd
  103. Arch Linux AUR PKGBUILD generate new checksums
  104. Ansible - Only if a file exists or does not exist
  105. Fix inconsistent Openstack volumes and instances from Cinder and Nova via the database
  106. Clear Uncluttered SSH client config with Ansible
  107. Olimex OlinuXino a10 Lime uBoot, Kernel and root image guide
  108. ingsoc
  109. IPSEC L2TP VPN on Ubuntu 12.04 with OpenSwan, xl2tpd and ppp
  110. IPSEC L2TP VPN on CentOS 6 / Red Hat Enterprise Linux 6 / Scientific Linux 6
  111. IPSEC L2TP VPN on Ubuntu 13.04 with OpenSwan, xl2tpd and ppp
  112. IPSEC L2TP VPN on Arch Linux on a Raspberry Pi with OpenSwan, xl2tpd and ppp
  113. IPSEC L2TP VPN on Ubuntu 14.04 with OpenSwan, xl2tpd and ppp
  114. IPSEC L2TP VPN on Ubuntu 13.10 with OpenSwan, xl2tpd and ppp
  115. IPSEC L2TP VPN on Ubuntu 12.10 with OpenSwan, xl2tpd and ppp
  116. Openstack Affinity Groups, make sure instances are on the same or different compute hypervisor hosts
  117. Ansible - Only if host is also in other hostgroup
  118. Build a FreeBSD 10.1-release Openstack Image with bsd-cloudinit
  119. OpenSSL Decoder Script
  120. OpenSSL Command Generator
  121. Olimex OlinuXino a10 Lime Minimal Debian 7 Image
  122. Keepalived notify script, execute action on failover
  123. Check and Fix SSL servers for SSLv3 connections or the Poodle CVE-2014-3566 bug
  124. Configserver Firewall and Security (CSF and LFD)
  125. Patch Shellshock)with Ansible
  126. Boot to Vim, Vim as Pid 1
  127. Statically (cross) compiled vim for x86, x86-64 and mipsel
  128. Owncloud, DirectAdmin, Apache 2.4 and Error AH01797: client denied by server configuration
  129. Set your IP as wallpaper
  130. foaas.sh - Command Line Fuck Off as a Service client
  131. Get the current or all Firefox tab urls in Bash
  132. Build a $35 Time Capsule - Raspberry Pi Time Machine Backup Server
  133. Building HA Clusters with Ansible and Openstack
  134. OpenVZ/Proxmox - Container to Template
  135. Proxmox VE - One Public IP
  136. CentOS 5 CA Certificate Bundle Update
  137. Traceroute to Smokeping Target config
  138. Simple keepalived failover setup on Ubuntu 14.04
  139. OSSEC 2.8 Server, Client, Web UI and Analogi Dashboard Installation tutorial
  140. Build a FreeBSD 10.0-release Openstack Image with bsd-cloudinit
  141. Openstack Horizon installation with SSL on Ubuntu
  142. Openstack Swift Objectstore Access via FTP
  143. Encrypted Duplicity Backups to Openstack Swift Objectstore
  144. IPv6 at Home
  145. Transmission Web on a Raspberry Pi with Arch Linux
  146. FreeBSD 10, Converting from RELEASE to STABLE
  147. Linux software raid, rebuilding broken raid 1
  148. FreeBSD Ports: remove config options
  149. OpenSSL: Manually verify a certificate against an OCSP
  150. Chef: overwrite templates in wrapper-cookbooks
  151. Chef: chef_gem vs gem_package and ORDER
  152. OS X: Remove all Apple Remote Dekstop settings
  153. 3D modeling a real world object in OpenSCAD
  154. KVM add disk image or swap image to virtual machine with virsh
  155. KVM convert qcow2 disk images to raw disk images for performance
  156. KVM host with bonding and VLAN tagged Virtual Machines setup on Ubuntu 12.04
  157. Bonding NIC Teaming on Ubuntu 12.04
  158. Install extra software in the VMWare vCenter Appliance (VCSA)
  159. OpenSSL: Get all certificates from a website in plain text
  160. OCSP Stapling on Apache
  161. OCSP Stapling on nginx
  162. haproxy: intercept all cookies and set secure attribute
  163. Check if passwordless sudo can be used in a bash script or nagios check
  164. Remove unused CentOS/Red Hat kernels
  165. rc.local support on Arch Linux with systemd
  166. Ansible Inventory from VMWare
  167. Bash Bits: Simple command line arguments
  168. Ansible - Playbook Testing
  169. Local W3C HTML5 Validator Server
  170. Ansible - Only do something if another action changed
  171. Ansible - Sudo sometimes
  172. haproxy: client side ssl certificates
  173. Apache access/error log to syslog
  174. Back Up Thunderbird Message Filters
  175. Install nmap 6.40 on Ubuntu 12.04
  176. haproxy: set specific ssl ciphers
  177. haproxy: add strict transport security or any other http header
  178. haproxy: ssl backends
  179. haproxy: redirect to ssl or other website
  180. ntop-ng 1.1 installation on Ubuntu 12.04
  181. Corosync Pacemaker - Execute script on failover
  182. DigitalOcean Sucks. Use DigitalOcean!
  183. NoPriv.py - Easy IMAP Email Backup.
  184. Self Hosted CryptoCat - Secure self hosted multiuser webchat
  185. Corosync Notes
  186. Remove unused Ubuntu kernels
  187. Install the latest ZNC from source on Ubuntu
  188. Set up your own truly secure, encrypted and shared file synchronization, aka Dropbox clone
  189. OpenSSL One liner to create self signed certificate
  190. Chef: search in recipe based on roles or recipes
  191. Chef: include_recipe only_if or not_if
  192. Uninstall and Remove OSSEC
  193. Bash Bits: Check if item is in array
  194. Bash Bits: Add colour output to your script
  195. Bash Bits: Debug Logging
  196. Bash Bits: Trap Control C (SIGTERM)
  197. OSSEC Server, Client, Web UI and Analogi Dashboard Installation tutorial
  198. OS X - Enable access for assistive devices via the command line
  199. OS X - Applescript to lock date and time preference panel to fix local sudo exploit
  200. IPv4 Address Conversion Tricks
  201. OpenVZ dnsmasq set capabilities failed fix
  202. Bind DNS Query Graph Charts with GNUPlot
  203. Microsoft Exchange / Active Directory Powershell script to notify users of expiring Passwords
  204. Nagios - Hide all hosts in hostgroup
  205. Diffie Hellman Key Exchange Dutch Notes and Example
  206. OpenSSL - Generate Psuedo Random Passwords
  207. My Todo.txt Workflow, including Unison, Todour and Android
  208. Stong SSL Security on Lighttpd
  209. Pass the SSL Labs Test on NGINX (Mitigate the CRIME and BEAST attack, Disable SSLv2 and Enable Perfect Forward Secrecy).
  210. Pass the SSL Labs Test on Apache2 (Mitigate the CRIME and BEAST attack, Disable SSLv2 and Enable Perfect Forward Secrecy).
  211. OS X: Disable Notification Center
  212. bdsh - Whitelist Restricted Shell
  213. Strip all non-ascii characters from a file
  214. Samba Shares with Active Directory Login on Ubuntu 12.04
  215. Bash Incremental History Search / Autocomplete
  216. Dogtag / Red Hat Certificate System reset admin pkiconsole password
  217. Ejabberd SSL Certificate
  218. Ejabberd Active Directory LDAP Login
  219. Set up a federated XMPP Chat Network with ejabberd, your own Google Talk Hangouts alternative
  220. OS X - Turn Bonjour off or on via the command line
  221. OS X - Turn off sleep from the command line
  222. OS X - Create Hardware report SPX and save it to a AFP share
  223. Gitlab Active Directory LDAP Authentication
  224. OS X: Turn firewall on or off from the command line
  225. Exchange 2007 and 2010 Autodiscovery DNS SRV record for BIND
  226. Hide or determine BIND version number
  227. Nagios plugin to check an OCSP server
  228. Nagios plugin to check Safenet HSM
  229. Nagios plugin to check CRL expiry in minutes
  230. Join Mac OS X to an Active Directory / OpenDLAP directory from the commandline
  231. HP ILO - Quickly gather ILO version and firmware information via CURL
  232. Munin plugin to show Logstash/Kibana messages per hour
  233. Set up a Collectd client
  234. Set up a Collectd server with web frontend
  235. NGINX: Proxy folders to different root
  236. Silent unatended apt-get upgrade
  237. Ansible - sudoers safety and sanity checking in playbook
  238. NGINX: Catch all error codes
  239. NGINX: Hide / Block .git and .svn folders
  240. Hosted Piwik
  241. Ansible - pure ssh based configuration management and deployment
  242. Screenfetch installation tutorial
  243. Better Cron env and shell control with the SHELL variable
  244. Word occurrence counter and analyzer
  245. Create a VMWare ESXi 5 5.1 5.5 USB install disk
  246. Basic website and database backups with Duplicity
  247. Systemd rosetta / cheatsheet
  248. OpenSSL match certificate and private key
  249. OpenSSL Generate CSR non-interactive
  250. Munin - Fix MySQL plugin on Ubuntu 12.04 and Debian 6
  251. Munin - Set up the NGINX status plugin on Ubuntu 12.04
  252. Exploring /proc/ - tips and tricks for the procfs
  253. OpenSSL one liner to get expiry date from SSL Certificate of any website
  254. Fix CentOS IPTables rule saving (iptables: Saving firewall rules to /etc/sysconfig/iptables: /etc/init.d/iptables: line 274: restorecon: command not found)
  255. Restrict SSH
  256. RT (Request Tracker) - find and delete big attachments
  257. Install python 2.7 or 3 under Debian 6
  258. Ruby script to upload or convert a Maildir Inbox to an IMAP server
  259. Python script to monitor a file for changes and then mail the report with the file attached.
  260. Exchange 2010 - OWA - Lock user after x amount of failed logins
  261. Restore iptables rules after a reboot on debian
  262. Resize OS X Mountain Lion installer to fit on a single layer 4.7 GB DVD
  263. CIDR Cheatsheet
  264. Munin optimization guide for Debian (rrdcached, tmpfs, ionice and nice)
  265. Set OS X hostname from the commandline
  266. ClamAV installation and daily scan + report on Ubuntu
  267. Limit access to openssh features with the Match option
  268. Git-clean
  269. Set up your own distributed, redundant, and encrypted storage grid with Tahoe-LAFS
  270. Small low cost linux pc's, an overview from 11-2012
  271. Ray-Mon - PHP and Bash server status monitoring
  272. Codename Geld
  273. ed cheatsheet
  274. Persistent reverse (NAT bypassing) SSH tunnel access with autossh
  275. Nagios plugin to check certificates on local file system
  276. NutsManager
  277. PHP Task/Todo list
  278. Complete word count analysis of Security Now, episode 1 trough 370.
  279. Correctly grep and display the uptime, load average and amount of users
  280. Packages
  281. Tiny Tiny RSS
  282. Wallbase.cc commandline bash wget downloader
  283. Small Operating Systems / Linux Distributions
  284. Postfix snippets - not finished
  285. ProxBash - a bash script to manage Proxmox VE
  286. Ubuntu/Debian update mailer
  287. Terrible Start
  288. Bash - do something in every subdirectory
  289. Bash script to list all changed files in certain period
  290. Set up a local Ubuntu (apt) repository with apt-mirror
  291. NurseCalc o2 - Bash script and online app for Oxygen Calculations
  292. NurseCalc Infuus - Bash script and Online app for infusion and drip (speed) Calculations
  293. Some Bash and Arch Tweaks
  294. MagicProg: Magic the Gathering (RPG/TGC) Life Program
  295. Chrome Extensions for Privacy, Adblocking and anti-tracking
  296. Stopping fail2ban.server : ERROR Unexpected communication error and other errors in fail2ban on ubuntu 9.04
  297. Introduction to DokuWiki
  298. Introduction to Markdown
  299. Tether your Sonim XP3 phone with Linux
  300. What to do if you cannot execute CHMOD
  301. NoPriv.py - Easy IMAP email backup to HTML archive.
  302. Customize your Clonezilla Live CD
  303. Debian packages clean up commands
  304. EasyConverter
  305. SSHdialog
  306. Clonezilla Backup Script v0.2
  307. Postfix: log message from, to and subject
  308. SSH: Key and user restrictions
  309. Bash script for massive rename to numbers
  310. Javascript tricks
  311. Convert FLV's to MP3
  312. Setting up Motion with FTP and Email! support
  313. Bash ja/nee keuze
  314. Imagemagick thumbnailer
  315. Vim Cheatsheet
  316. DRAFT (Re)Building a Metro Cab Simulator part 1
  317. RET Metro ATB
  318. RET Metro Type T SG/2
  319. RET Metro Type M MG/2
  320. RET Metro ZUB
  321. About