-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Bill Moran wrote: > In response to Ryan Novosielski <[EMAIL PROTECTED]>: >> Dan Langille wrote: >>> On 31 Jan 2007 at 11:24, Ryan Novosielski wrote: >>> >>>> So, I guess in summation, "Nothing to see here," or "What's the >>>> problem?" >>>> >>>> *IANA port list: http://www.iana.org/assignments/port-numbers >>> Well, HP does use those ports: >>> >>> http://www.isecom.info/cgi- >>> local/protocoldb/browse.dsp?search=1&fld1=1&opr1=4&val1=9100&rows=25&s >>> ubmit=search >>> >>> OR http://tinyurl.com/2vzpqa >>> >>> Which refers to >>> http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID >>> =bpj01014 OR http://tinyurl.com/3agmm7 >>> >>> Confirmation that HP is using ports 9101 and 9102 which are >>> registered to Bacula. >> Even so, a very small overlap: >> >> * 9100 TCP port is used for printing. Port numbers 9101 and 9102 are for >> parallel ports 2 and 3 on the three-port HP Jetdirect external print >> servers. >> >> ...and if I'm not mistaken, this is configurable. Is there any way that >> this will actually affect anyone? Seems unlikely to me (unless you have >> a firewall rule going after HP printer traffic that whacks Bacula in the >> process). > > I could be wrong, but if memory serves, the problem is not so much that > HP is using Bacula ports, it's that various HP drivers "probe" the network > to "automatically" find all the printers on the network. > > IOW: when MS Windows starts up, the HP printer drivers try to connect to > port 910x on every host on the network to see if there's a printer there. > > Again, I could be wrong on this.
Not sure how one would have to have them configured in order to get the drivers to do this, but the person or utility setting things up that way I think deserves more ire than HP. ;) Perhaps people running JetDirect scans or something like that -- occasionally, discovery is done from WebJetDirect and things like that. Don't know that they go looking on 9101-3 though. Could well be. However, that leads us to... ...anyone could do this, regardless of the printer. I could telnet to port 9102 and start rattling off Kafka. I'd assume Bacula would handle this gracefully and therefore it would not be a problem. If that is not the case, then that needs looking into. The only real reason HP would be involved there is that HP printers attract folks who want to screw them up, so you might end up on the crossfire between some Sasser-style worm and an HP printer. PS: I have no love for HP devices, or JetDirect for that matter, and when the 41xx line started going into the toilet for reliability and likelihood that a printed PS file would come out of the printer, I dumped them for Xerox. Even so, nothing that I can see that prevents them from peacefully coexisting on the network. Their management utilities, however, could be another story. =R - -- ---- _ _ _ _ ___ _ _ _ |Y#| | | |\/| | \ |\ | | |Ryan Novosielski - Systems Programmer III |$&| |__| | | |__/ | \| _| |[EMAIL PROTECTED] - 973/972.0922 (2-0922) \__/ Univ. of Med. and Dent.|IST/AST - NJMS Medical Science Bldg - C630 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFFwPnVmb+gadEcsb4RArHMAKDgdnkawL9BM9AXpAREjjJkpQvVdQCgxK+t h49Ni+4YjIfmlgUfqfRNJ5w= =1++J -----END PGP SIGNATURE----- ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
