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