• Internet Explorer doesn't display ISA or TMG error message 502 when connecting to HTTPS servers

    Posted over 3 years ago
    by MuratKa1}
    Hi there, I would like to talk about an issue that I have dealt with recently regarding Internet Explorer and displaying TMG error messages. The problem reported was that newer IE versions (like 8 or 9) didn’t display the regular TMG...

  • TMG initiates active FTP connections to external servers even though it's configured for passive FTP - a problem with FTP over HTTP

    Posted over 3 years ago
    by MuratKa1}
    Hi there, In this blog post, I’ll be talking about another TMG problem where FTP over HTTP was failing through TMG server. Let me first summarize the scenario: - Internet Explorer clients need to connect to an external FTP site...

  • Java applications and TMG access rules that require authentication

    Posted over 3 years ago
    by MuratKa1}
    Hi there, In this blog post, I’ll be talking about a TMG related issue. Actually it’s not an issue that stems from TMG itself but the way TMG server is configured (using authenticated rules on TMG server) triggers the problem. ...

  • Anatomy of a DoS attack that exploits WebDAV vulnerability in Apache Web server

    Posted over 3 years ago
    by MuratKa1}
    Hi there, It has been sometime since I haven’t posted anything at the blog and finally got a chance to do so. Recently I helped a colleague of mine to investigate a “Windows server connects to unknown destinations” problem...