It may be traffic related. I use my SSH access on ocasions, but not very heavly. They may look for high amounts of incoming connections or traffic on ports and block those. Personally thought I haven't been blocked for SSH though. BTW, what / who is "PHB"? On 7/17/07, Matt Graham wrote: > > On Tuesday 17 July 2007 09:30, after a long battle with technology, > Shawn Badger wrote: > > On 7/17/07, Michael Sammartano wrote: > > > Since when?? I have been running sshd on many boxes at home for > > > many years. As far as SMTP service on port 25 and other providers, > > > just set up the email client to use another port for SMTP, whats > > > the big deal? > > This doesn't jive with the accounts of another PLUG poster about a month > ago, who said he was running sshd on port 22 for a while, then had it > blocked, then ran sshd on another port, then had it blocked, etcetera. > His account also said that they do some form of (stateful packet > inspection?) and start blocking ports if they see something like this: > > Random machine: 12345 > 22 SYN -> Cox machine > Cox machine: 22 > 12345 SYN ACK -> Random machine > Random machine: 12345 > 22 ACK -> Cox machine > [normal TCP traffic over those ports] > > ...whether this is true for *every* Cox user or not, I don't know. They > may have different policies in different geographical areas, or > something. Or there's a traffic limit before they start blocking. > > For SMTP, the SMTP server also has to listen on a different port. SMTP > servers that are run by clueless people or administratively paralyzed > people may not be doing that. > > > I would also have to chime in and say that I have been using sshd for > > some time with Cox. They only block what a vast majority of the > > people consider the Internet from running as a service on the home > > connections (SMTP and HTTP). > > Since the PHBs have apparently decided to use MSexchange for the new > mailswerver, against my objections, I've got to have an SMTP server > that I know will work and keep working accessible. Nothing > high-traffic, just a backup for when the Exchange machine dies > horribly. > > -- > "Dreams? Best leave dreams to those that can afford them." > --Aunt Cordelia, _Wizard and Glass_, Stephen King > There is no Darkness in Eternity/But only Light too dim for us to see > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us > To subscribe, unsubscribe, or to change your mail settings: > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss >