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How to configure a firewall or proxy server

This article provides steps for configuring firewalls and proxy servers, which may help to resolve Yahoo Messenger connection issues, including the following symptoms:

  • Unable to send or receive files or photos
  • Unable to send or accept game or conference invitations
  • Unable to sign in to Yahoo Messenger

If you're experiencing a problem because you are connecting through a firewall or proxy server, you may need to configure your firewall or proxy server.

Most Internet service providers (ISPs) don't have firewalls or proxies, but you should contact your network administrator or ISP for accurate information and for additional help with the configuration.

Some basic configuration procedures which may be helpful are listed below:

Basic Connection:

  • Protocol: TCP or HTTP
  • Servers: scs.msg.yahoo.com, scsa.msg.yahoo.com, scsc.msg.yahoo.com
  • Port: 20, 23, 25, 80, 119, 5050, 8001, 8002

Webcam Connection:

  • Protocol: TCP
  • Server: webcam.yahoo.com
  • Port: 5100

File Transfer Connection:

  • Protocol: HTTP
  • Server: filetransfer.msg.yahoo.com
  • Port: 80

File Sharing Connection:

  • Protocol: HTTP
  • Port: 80

Voice Chat Connection:

  • Protocol: UDP or TCP
  • Server: vc.yahoo.com
  • Ports: 5000-5010

 

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Last updated: June 24, 2013