Ett modernare exempel på självreproducerande program
SANS Institute har sammanställt de 20 vanligaste intrångsvägarna
Brett Glass har en artikel om "hur man stoppar elakartade mail :
Abstract: A properly configured BSD mail server can protect users (including those running other operating systems on client machines) from spam and Trojan horses while rejecting virtually no legitimate content. This tutorial describes how to configure BSD systems to use DNS blacklists, procmail, mail "sanitizing" scripts, daemons that watch logs for evidence of spamming and "mail bombing," and similar utilities. Prevention of unauthorized relaying and detection and blocking of outbound spam are also discussed. Countermeasures against address harvesting and privacy invasion techniques such as "Rumplestiltskin" attacks, fingerd scans, tracking via identd, e-mail cookies, and malicious image tags in HTML mail are covered in detail. Links to source materials and relevant software tools are provided.
Vill du prova din tyska - besök Dipl. Phys Jens Hektor's infosida.
Bugtraq numera securityfocus, Layouten är minst sagt egendomlig)
CIAC (Department of Energy, helt klart på hugget)
l0pht (making theoretical practical), numera @stake
Pretty Good Privacy (pgp, still with us! )
Nomad (inte snälla mot Novell)
Computer Emergency Responce Center CERT
Netcraft (vilken webserver/OS används ?)
BIND, DHCP och INN Från Paul vixies källare i redwood city
TCP-Wrapper Wietse Venema's inetd-komplettering mera info
SSH ersätter rlogin,
rcp rsh och telnet Mera info här
En alternatic leverantör är OpenSSH
SUDO a utility to allow restricted root access
Ipfilter - en paketfiltrerare för solaris och *BSD (läs mera)