UNIX System Services and Administration

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This a list of free tools and services that are useful for establishing a UNIX network environment - including DNS, Mail, Routing, WWW, News, and Security.
Services
DNS
- Internet Software Consortium Bind
- A BIND FAQ
- BIND version 9 (via ftp)
- Setting up a basic DNS server for a domain (older, uses BIND 4 syntax)
- Internet Software Consortium Bind
DHCP
- A DHCP FAQ
- Internet Software Consortium DHCP
- DHCP version 3 (via ftp)
- Problem and Solutions of DHCP (an overview - older, still useful)
- Secure Dynamic DNS (abstract and HOWTO)
Routing
Mail
- Exim (www.exim.org)
- Majordomo
- Majordomo Faq
- Majordomo (.tar.gz)
- Problems with the Maintenance of Large Mailing Lists - RFC 1211
- Postfix
- Sendmail (www.sendmail.org)
- Sendmail FAQ
- comp.mail.sendmail (Newsgroup)
- Sendmail Current Release
- Mailing list: Send "subscribe sendmail-announce" to majordomo@Lists.Sendmail.ORG
- BSMTP for sendmail described.
- BSMTP 1.02 for download.
- UUCP
WWW
- Apache The Apache Web server.
- Apache projects page
- Apache Version 2.0 Documentation
- Apache Faq Ver. 1.3
- Apache Faq Ver. 2.0
- To download the latest version of Apache (tar.gz)
- Apache Virtual Hosts documentation Ver. 1.3
- Apache Virtual Host documentation Ver 2.0
- ht://Dig The ht://Dig search engine. (replaces dnslookup)
- Squid The Squid proxy server.
- Squid Faq
- Mailing List: send mail to squid-users-subscribe@squid-cache.org
- Additional mailing lists
- squid-2.5 (.tar.gz)
News
- Internet Software Consortium INN (InterNetNews)
- INN Faq
- Newsgroup news.software.nntp
- Internet Software Consortium INN (InterNetNews)
Security
- BugtraqThe Unix Bugtraq Archive.
- Mailing List: send blank email to bugtraq-subscribe@securityfocus.com.
- CERT Coordination Center
- CERT Advisories
- Mailing list: send email to majordomo@cert.org. In the body of the message, type subscribe cert-advisory
- Additional CERT Advisory List Information
- Software
- AIDE Advanced Intrusion Detection Environment.
- Cops
- Firewalls from Computer Security Software Etc.
- FreeSSH (alternate ssh versions)
- Kerberos
- Libsafe from Avaya labs. Security against buffer overflow attacks.
- LOphtCrack
- Netfilter/iptables Firewalling, NAT and packet mangling for Linux 2.4.
- OpenSSH
- SSH FAQ
- Downloads available for many OS'es on main page
- ssh for FreeBSD (via ftp)
- Directory where ssh for FreeBSD lives
- Snort (The Open Source Network Intrusion Detection System)
- ssh (.tar.gz via ftp from funet.fi)
- SSH Communications Security SSH from ssh.com. Commercial SSH software.
Network Monitoring and Management
- Big Brother computer and router state monitoring tool).
- CAIDA Internet performance measurement tools overview.
- ClobberD (Establishes time quotas for users)
- Clobberd-4.16 (.tgz)
- List of traffic monitoring software
- MRTG (Router Traffic Graphing Tool)
- SNMP
- Comp Protocols SNMP FAQ
- SNMP at Twente University (nl)
- Snort (The Open Source Network Intrusion Detection System)