Re: Blockin msn?

Ertugrul Soeylemez wrote:

Are you trying to block by local port number? If yes, you will fail,
because it is chosen randomly (for every program).

Regards.

This is I don't understand? How can something be chosen randomly for every
program? Ftp should use port 21 and since that is not allowed out it's
blocked and that works. Perhaps I missunderstand you?

To clarify it all I'm using a Slackware 10.2 computer as a firewall and
connection to internet and some of the clients are Windows XP and it's on
the Slack comp. that I would like to block all connections from and to
microsoft messenger, this since it's a very good source to get viruses and
such things in to the computers.

.

Relevant Pages

  • Re: Not able to Ftp
    ... I was also looking at the missing challenge from the local security. ... Subject: Not able to Ftp ... 220 Connection will close if idle for more than 5 minutes. ... Search the archives at http://bama.ua.edu/archives/ibm-main.html ...
    (bit.listserv.ibm-main)
  • Re: Not able to Ftp
    ... Subject: Not able to Ftp ... I have executed the given command: the output are as below: ... connection. ... Search the archives at http://bama.ua.edu/archives/ibm-main.html ...
    (bit.listserv.ibm-main)
  • RE: Telnet/ftp problems SBS2000
    ... Please make sure your client computers are configured as both Firewall ... will find two options "Enable folder view for FTP sites" and "Use Passive ... that the control connection has been successfully established, ... (other than port 21) ...
    (microsoft.public.windows.server.sbs)
  • Re: IPSwitch, Inc. WS_FTP Server
    ... > bounce attack as well as PASV connection hijacking. ... > The FTP bounce vulnerability allows a remote attacker to cause the ... > anonymously along with any internal addresses that the FTP server has ... That means it's got to handle a PORT ...
    (Bugtraq)
  • Re: Not able to Ftp
    ... I have executed the given command: the output are as below: ... EZYFT25I Using //'TCPIP.STANDARD.TCPXLBIN' for FTP translation tables for ... connection. ... CY1013 ftpStart: setibmoptfailed on IBMTCP_IMAGE - EDC5138I No such ...
    (bit.listserv.ibm-main)