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Getting client applications through firewalls can often be challenging. Classic problems are: - FTP
- Normal FTP requires an incoming FTP connection that will be blocked by the firewall. One solution is "stateful inspection" of the control connection to allow these connections through. Also, most browsers support a PASV mode that transfers files through only outgoing connections. However, not all clients (especially command-line ones) support this and many servers still don't support this feature.
- rsh
- Outgoing 'rsh' has a problem with an incoming connection for stderr.
- DCOM (0)
Getting Microsoft's DCOM through firewalls
- NetMeeting (1)
Microsoft's audio/video/whiteboard conferencing product
| - PCAnywhere (0)
- SOCKS (0)
A popular protocol for allowing full access to the Internet through a firewall.
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- H.323 and Firewalls-The problems and pitfalls of getting H.323 safely through firewalls
- HTTPtunnel-Software for essentially bypassing firewalls to connect to the Internet, working also with proxies.
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