DeleGate is a multi-purpose application level gateway, or a proxy server.
DeleGate is a multi-purpose application level Gateway, or a proxy server which runs on multiple platforms (Unix, Windows, MacOS X and OS/2). DeleGate mediates communication of various protocols (HTTP, FTP, NNTP, SMTP, POP, IMAP, LDAP, Telnet, SOCKS, DNS, etc.), applying cache and conversion for mediated data, controlling access from clients and routing toward servers. It translates protocols Between clients and servers, applying SSL(TLS) to arbitrary protocols, converting between IPv4 and IPv6, merging several servers into a single server view with aliasing and filtering. Born as a tiny proxy for Gopher in March 1994, it has steadily grown into a general purpose proxy server. Besides being a proxy, DeleGate can be used as a simple origin server for some protocols (HTTP, FTP and NNTP).

This release includes many minor fixes to make DeleGate ver.9 stabler
(around Win32, sftp, FTP/SSL, SSI, NNTP, etc) and extensions for several
specific usage or experiment (resolver, routing, sftp/FTP, FTPS).

FIX
- removed possible SEGV with unknown-host error on Solaris,HPUX (9.9.1)
- fixed not to forbid SSL-Tunnel with HTMUX=sv (9.9.0)
- enabeld -Fkill to work on Win32 (disabled in 9.4.0)
- enabled user:pass of URL in SSI-include with AUTHORIZER (9.2.2)
- enabled RELAY=nojava (7.9.11)
- fixed possible endless-loop in NNTP cache on NFS
- removed delay in SSI-include for STLS with -Pport/admin
- fixed to break SSI-include on disconnection from the client
- fixed FTP not to return banner lines ending without CrLf
- fixed FTP to return response in a single SSL record with STLS=fcl
- enabled CAPSKEY in DeleGate as a service on Win32
- fixed uploading over narrow line on sftp/FTP gw.
- fixed loop in src/Makefile with clock-skew
- ported (again) onto AlphaServer+OSF/1 (make CFLAGS=-DNONCPLUS)
- ported (again) onto Cygwin you can free download DeleGate 9.9.7 now.