System
A collection of articles relating to server-side tools and Apache modules. We mostly use a standard LAPP (Linux, Apache, PostgreSQL, PHP) installation hosted on Debian/GNU Linux. Most details will apply also to other systems, though some file paths will differ.
Articles relating to Server-side
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- Access authorization in Apache 2.4
- Apache authorization with dynamic DNS
- Authenticating Apache Logins with PostgreSQL
- Blocking Fake Googlebot and bingbot spiders
- Re-naming vhost files to *.conf for Apache 2.4
- Blocking FTP Hacking Attempts
- Fail2Ban 0.8.3 Howto
- fail2ban and iptables
- fail2ban and sendmail
- Implementing Port Knocking with knockd
- Monitoring the fail2ban log
- Optimising your Fail2Ban filters
- Using a Fail2Ban Jail to Whitelist a User
- Using systemd to bind fail2ban to nftables
- Analyzing Apache Log Files
- Bash script to generate broken links report
- Blocking Unwanted Spiders and Scrapers
- Controlling what logs where with rsyslog.conf
- Fake Traffic from AVG
- Logging sFTP activity for chrooted users
- Referer Spam from Live Search
- Referer Spam from Microsoft Bing
- Avoiding duplicate content filters
- mod_rewrite: Examples
- mod_rewrite: Seach Engine Friendly URL's
- Saving bandwidth with mod_rewrite and ImageMagick
- Using mod_rewrite to canonicalize and secure your domain
- Analysing mailq and the mqueue directory
- Analysing the mail.log
- Expanding IPv6 Addresses for DNSBL Checks
- Using qtool.pl to manage sendmail queues
- Accessing Public IP address from behind NAT
- Apache Request and Response Headers
- Calculating Subnets
- Emulating an HTTP/1.1 Request using Telnet
- Fighting Form Spammers
- Generating a Certificate Signing Request (CSR)
- HTTP Server Status Codes
- Identifying unused resources with inotifywait
- Integrating resolvconf and pdnsd
- IPv6 Networking and DAD
- Moving munin stats to tmpfs
- New Apache instance with Reverse Proxy
- procmail
- Searchable Directory of User Agents
- Webalizer Numbers Explained
- Web Server Attacks and Exploits
- WWW Hacker Activity
- xferlog - ProFTPD server logfile