Hi Sergio, The former version of MS-Messenger used to connect through a specific port (1863), but newer versions don't have a specific port and can pass through the port 80( such as a ordinary HTTP Connection), this way is difficult to differ a simple http packet from a messenger packet. I have solved this kind of problem through the squid. Do you use squid in your network??? If yes, you can use the squid url_regex option and deny the connection to the Messenger central gateway( gateway.messenger.hotmail.com). Regards Lucas Albuquerque Citando Sergio A Lima Jr <sergio@xxxxxxxxxxxxxxx>: > hi friends, > > I am have problems with abusive use of the software MS-Messenger. > > How to block in my firewall/gateway this use de software (with ipchains > in kernel 2.2.x) > > best regards, > > []'s > > -- > =================================== > Sergio A. Lima Junior > Analista de Suporte > =================================== > Servico de Atendimento ao Cliente > Depto. de Suporte > Gruponet Tecnologia > sergio@xxxxxxxxxxxxxxx > http://www.gruponet.com.br > =================================== > > ------------------------------------------------------------------------ > To unsubscribe email security-discuss-request@xxxxxxxxxxxxxxxxx > with "unsubscribe" in the subject of the message. > > -- _________________________________ Lucas Francisco A. Júnior lucasjr@xxxxxxxxxxxxxx ________________________________ ------------------------------------------------------------------------ To unsubscribe email security-discuss-request@xxxxxxxxxxxxxxxxx with "unsubscribe" in the subject of the message.
