DeleGate Home Page (
DeleGate is a multi-purpose application level gateway, or a proxy server which runs on multiple platforms (Unix, Windows and MacOS X). 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).

Latest Topics *

Version History *
ReleaseNotes(9, X) Download( Source Binaries ) Install Tutorial Usages

DGX50-40.gif DeleGate 10 -- development version --
2014-05 10.0.0 [alpha] History viewer (with guide), revival of RFC search
flrg9.jpg DeleGate 9 -- maintenance version --

Feedback and Archive
  • Feedback/Q&A in English (READ), in Japanese (yomu.gif / yomu.gif) search
  • Features: IPv6, SockMux, filtering, reverse proxy, TLS, SSL, SSH, SOCKS, CFI, ICP
  • Copyright, Pricing, Licensing
  • What is DeleGate? What was DeleGate?
  • Supported protocols: HTTP, FTP, NNTP, POP, IMAP, SMTP, Telnet, LDAP, Socks, SSL, Wais, X, LPR, ICP, ...
  • Supported platforms: Unix, Windows 8/7/XP/2K/NT, Windows Mobile/CE, OS/2
  • Source distribution:*.tar.gz [How to make]
  • Binary distribution: Beta, Win32, Linux, MacOSX BSD, Solaris, and [OS/2]
  • Tutorial for the first glance
  • Reference manual
  • Supported standards
  • Referrers of this page
  • A HTTP proxy survey, The Web Server Survey, Internet Domain Survery, ISOC
  • History of Updates
  • History of Growth: Code size, Distribution
  • DeleGate in Books, Papers, Patents, Rankings
  •   Junk
    Mezamasy Project


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    Search this site by FreyaSX (the full-text search engine under development by the author of DeleGate)
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    RFC search is also provided for testing and evaluation of FreyaSX.

    figure-of-frog download
    (July 7, 2005)
    `` rewritten in C++, a lot of buffer overflows were swept, improved STARTTLS support, coped with HRS attack '' ... changes ...

    dglayers.jpg   USAGE EXAMPLES


    MS Windows support page
    DeleGate-Notes(in Japanese)

    Mt.Tsukuba myphotos
    Yutaka Sato, CSDP ,ITIL-F,ISTQB-F,OCUP-A,Security+
    Information Technology Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, Japan

    Yutaka Sato @ DeleGate.ORG