VPN Tunnel Setup HowTo's - Part 1
Site-toSite VPN between Linux and a Cisco PIX 501
Last Update: July 1st, 2006
  • Setting up a 3DES VPN tunnel between Linux FreeSwan and a Cisco PIX 501 together with source or destination network address translation <read here>
  • Setting up 256bit AES encryption between Linux OpenSwan and Cisco Pix 501 <read here>
VPN Tunnel Setup HowTo's - Part 2
Site-toSite VPN between Linux and Cisco 831 (IOS 12.4)
Last Update: November 25th, 2006
  • Setting up a 3DES VPN tunnel between Linux FreeSwan and a Cisco 831 router together with source or destination network address translation <read here>
 
Oracle and other DB HowTo's
Last Update: April 6th, 2006
  • How to install and use Oracle JDBC drivers (using standard Java path) <read here>
  • How to install and use MySQL JDBC drivers (using the standard Java path) <read here>
  • How to install and use Microsoft JDBC drivers (using the standard Java path) <read here>
  • How to install and use IBM DB2 JDBC drivers ( using the standard Java path) <read here>
  • How to learn Oracle 10g on Linux (PDF format, German version only) <read here>
  • How to install the Oracle InstantClient with libsqlora8 <read here>
  • How to connect to Oracle using libsqlora ('C' example) <read here>
  • How to create a Oracle 9i OCI/SQLplus InstantClient <read here>
  • useful Oracle SQL queries and examples <read here>
  • Oracle 9i SQL introduction<read here>
 

Apache and related Web HowTo's
Last Update: Jan 2nd, 2002
  • How to compile and install Apache 1.3 with LDAP, SSL and Radius support <read here>
  • Monitoring Apache session load with Nagios through mod_status <read here>
  • Increasing the size of the webalizer monthly stats image usage.png <read here>
  • Automatic web or proxy cluster control script for linux loadbalancer ipvsadm proxy-clustercontrol.sh v1.0
 

OpenSSL HowTos's
Last Update: Feb 23rd, 2004
  • How to analyze packets in a SSL encrypted network connection <read here>
  • How to load and display a SSL private key using OpenSSL libraries in 'C' <read here>
  • How to create a PKCS12 cert bundle in 'C' for use with Windows S/MIME <read here>
  • How to set up and use stunnel to provide SSL encryption for a standard HTTP webserver <read here>
  • How to generate S/MIME certificates with WebCert <read here>
 

SUN & Solaris HowTo's

Last Update: Oct, 2001
  • How to configure runtime linking in Solaris 8 (Sun Document ID: 3057) <read here>
  • Handy howto's for filesystem maintenance on SUN Solaris <read here>
  • Solaris Jumpstart <read here>
  • Adding disks and configuring a mirror with Solstice Disksuite <read here>
 

Various HowTo's

Last Update: March 30th, 2006
  • How to archive the Linux Configuration to remote storage <read here>
  • How to create a history and index page for HTML reports <read here>
  • How to tunnel IMAP or Pop3 through a SSH gateway <read here>
  • Handy one-Liners for SED (Author: Eric Pement) <read here>
  • How to use curl and urlencode to send data to a Web CGI pgpkey-upload.c v1.0
  • How to access hash and array pointers in Perl <read here>
  • IPv4 Subnets in a table - The Class-'B' Subnet Cheat Sheet <read here>
  • IPv4 Subnets in a table - The Class-'C' Subnet Cheat Sheet <read here>
  • Nessus client server network communication protocol NTP 1.2 analysis <read here>
  • How many files can be in a directory? <read here>
  • How to recover a Linux file after 'rm'<read here>
  • How to upload a file to a webserver from Windows, using webdav over https with basic auth https-upload.vbs
  • How to generate a Zengin file for electronic bank funds and payments transfer Zengingen v1.0
  • The Javascript password generator to get a random password quickly Javascript pwgen by KATO Kazuyoshi

Nagios Monitoring HowTo's

Last Update: June 11th, 2009
  • Enterprise Patch Compliance Monitoring with Nagios:
    1. SUSE Linux SLES10 Nagios SNMP patch update monitoring <read here>
    2. OpenSuse 10.3 Nagios SNMP patch update monitoring <read here>
    3. Cisco IOS version compliance monitoring with Nagios <read here>
    4. Windows systems patch update monitoring with Nagios <read here>
    5. IBM AIX systems patch update monitoring with Nagios <read here>
  • IT Security Patch Monitoring with Nagios (PDF, local copy) <read here>
  • Monitoring Windows Reboots through SNMP traps with Nagios <read here>
  • Monitoring Apache session load with Nagios through mod_status <read here>
  • Device auto-discovery and printer monitoring with Nagios <read here>
  • Nagiosgraph map configuration examples for various graph types <read here>

Embedded Systems HowTo's

Last Update: January 30th, 2009
  • How to connect a HD44780 compatible LCD display to a Rabbit RCM3720 <read here>
  • How to connect a HD44780 compatible LCD display to a Rabbit RCM4010 <read here>

Keiko's Cooking Studio

Last Update: March 30th, 2006
  • How to cook Japanese Miso soup <read here>
  • How to make Sushi Rolls <not finished>