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ResNet Incoming Port Blocking Policy

ResNet blocks incoming traffic on several ports that can cause potential security risks. The list below outlines what the ITSO (www.security.ku.edu) is blocking.
  • Web Servers (80,8080,443,8443)
  • FTP Servers (20,21)
  • IRC Chat Servers (6660-6669,7000)
  • IDENTD (113)
  • POP3 Servers (110)
  • IMAP Servers (143)
  • SMTP Servers (25,583)
  • DNS Servers (53)
  • MS-SQL Servers (1433-1434)
  • MySQL Servers (3306)
  • Oracle Servers (1521)
  • Squid Servers (3128)
  • TermServ Servers (3389)
  • RPC (111)
  • X11 (6000-6050)
  • Telnet Servers (23)
  • RSH and RLogin Servers (513-514)