Yahoo messanger Firewall Setting,

Messanger takes this many open ports on Firewall.
Yahoo messanger wants to compete with MSN, adding many features something MSN already has and some are new to Yahoo.


Information for Network Security Administrators


The following information should assist with connectivity issues. (All subject to change.)

Basic Connection:

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

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
  
• Servers:
  
  
  
  • v1.vc.scd.yahoo.com
    
  • v2.vc.scd.yahoo.com
    
  • v3.vc.scd.yahoo.com
    
  • v4.vc.scd.yahoo.com
    
  • v5.vc.scd.yahoo.com
    
  • v6.vc.scd.yahoo.com
    
  • v7.vc.scd.yahoo.com
    
  • v8.vc.scd.yahoo.com
    
  • v9.vc.scd.yahoo.com
    
  • v10.vc.scd.yahoo.com
    
  • v11.vc.scd.yahoo.com
    
  • v13.vc.sc5.yahoo.com
    
  • vc1.vip.scd.yahoo.com
    
  
  
• Ports: 5000-5010
  

Firewall library provided by Distinct Corporation - http://www.distinct.com