On 31 Jan 2007 at 10:38, Chris Hoogendyk wrote: > > > Dan Langille wrote: > > On 31 Jan 2007 at 11:28, Davide Bolcioni wrote: > > > > > >> Kern Sibbald wrote: > >> > >> > >>> Another thing to check for is HP printers on the network, which > >>> have the nasty habit of using non-registered ports e.g. 9001, > >>> 9002, or 9003, which can cause disconnects by Bacula. If you find > >>> printers probing/using those ports, either reconfigure the > >>> printers or Bacula (preferably the former since the ports are > >>> officially registered by IANA to Bacula). > >>> > >> Port conflicts are a known annoyance, but maybe it would help to > >> disseminate the information about Bacula usage, for example here: > >> > >> http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers > >> > > > > The Bacula ports are listed there. > > > > And Bacula is listed here: http://en.wikipedia.org/wiki/Bacula > > > > > >> Should the need to introduce incompatible changes in the protocol > >> arise, which I guess would be Bacula 3.0, maybe a different set of > >> default ports could be considered ? HP networked printers are > >> fairly common. > >> > > > > Bacula is registered with IANA, which is the definite source as well > > as listed in the protocol database: > > > > http://www.isecom.info/cgi-local/protocoldb/browse.dsp > > > > Yes, I know it does not make much difference given that HP did and > > does not do the right thing. > > I passed an earlier message from this thread along to my network > expert, because we have had some complaints about recent HP stuff. I'm > only casually up on that stuff. > > I was surprised by his answer, but not by his depth of knowledge. So, > I'm passing it along just so you all have it. Please note that lprng > and cups are two of the most widely used printing systems. Mac OS X > uses cups, and lprng is frequently recommended as a replacement system > for people in linux/unix environments who want some added capability.
I just spoke with the curator of the protocol database[1] who pointed out a few problems with the opinion you were given. The key points are shown below. [1] - http://www.isecom.info/cgi-local/protocoldb/browse.dsp > > Chris, I would hope someone would point out to the list that ONLY > ports < 1024 historically > > are "well known ports", and those < 4096 are sort of registered. > So > far as I am aware there is > > no binding registration for ports > 4096. But far worse is the > fact binding registration? I wonder what he means by that. IANA is the official word on this matter. The Bacula ports *have* been correctly registered with the appropriate authority. I refer to : http://www.iana.org/assignments/port-numbers where I find: ### The Registered Ports are those from 1024 through 49151 DCCP Registered ports SHOULD NOT be used without IANA registration. The registration procedure is defined in [RFC4340], Section 19.9. ### HP did not register the ports. Bacula did. Search for Bacula at that URL for confirmation. > that not just HP printers > > use port 9100. So do almost all printers which use the idea of a > "service port", and this is > > supported by default in lprng and in cups. If bacula is on port > 9100 > that is a totally bad idea. I'd like to know his reasons for a "bad idea". :) > > Bacula ought to have gotten a port registered by IANA in the > reserved > range rather than just > > grabbing ports that have long been in use for printing. Now I know he's not researching before speaking. The above URL contains proof. > > > > > just thought you would find the comments about HP printers at the > > end of this interesting. > > > > > > I don't get why a printer would be "probing" -- it should be a > service, just sitting there > > > responding to requests and taking jobs (except when it starts up > and needs to know its > > > assigned information). I am quite interested in your network person's reaction to this. :) -- Dan Langille : Software Developer looking for work my resume: http://www.freebsddiary.org/dan_langille.php PGCon - The PostgreSQL Conference - http://www.pgcon.org/ ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
