cups and my network printer

[Paul King]

On Fri, 2006-05-26 at 05:01 +0100, zleap-Tp5KeRqLOeNeoWH0uzbU5w at public.gmane.org wrote:
> are both the cups ports open thats 9100 and 631.  also you have local and
> network options I had to do trial and error for this but do you need both
> ports open?
> 

My printer doesn't have port 631 open. Is that a problem? /etc/services
doesn't list them as "lpd", they list them as "ipp" (internet printing
protocol). Those ports are open.

ipp    631/tcp      # Internet Printing Protocol
ipp    631/udp

> Regarding permissions I am sure that sometimes when adding printers using
> kde I have to go to the administrator button and enter the root password
> hance setting things up as root.
> 

doesn't work for me, even when I log in as root to KDE. I can't tell you
any details about what got set up the wrong way, because the setup tool
won't let me get past the greyed-out dialog. Something must be wrong
with how CUPS was installed, because even the option for CUPS is greyed
out, as if I never installed it. I had to install CUPS using synaptic.

> also is this any use
> \
> http://www.redhat.com/archives/rhl-list/2004-January/msg00986.html
> 

This guy added these lines in himself. The "lpd" was put in as just
being a name. My two lines containing "ipp" were part of the default
settings under Debian.

> to conclude what this says
> 
> You need to put an entry in /etc/services to allow the port to be recognized
> by xinetd.
> 
> lpd             631/tcp                         # lpd/CUPS port
> lpd             631/udp                         # lpd/CUPS port
> 

While this entry exists as IPP, there is no entry under /etc/services
for port 9100. I guess there doesn't need to be one, since the printer
has to understand that port, not my computer.

Paul

> 
> Paul
> 
> > Thanks to Jason Spiro for a suggestion I haven't thought of. While it
> > did not succeed, it brings up a question as to why it didn't.
> >
> > He suggested that I run kdeprint and use that to configure CUPS. Running
> > kdeprint under GNOME yielded a myriad of errors as suggested earlier in
> > this thread, so I ran it under KDE. I got nowhere with the tool, since
> > the menu which I am supposed to use to select CUPS was greyed out. In
> > fact, ALL of the options were greyed out, and it was impossible to get
> > beyond that dialog. This remained true when using KDE as root.
> >
> > There is a tool called "cupsdconf" which tells me "Unable to retrieve
> > configuation file from CUPS server." It tells me that I may not have
> > permission to access these files. It also tells me this when I am root.
> >
> > Using nmap -p- <ip_address> generated the following:
> >
> > 21/tcp   open     ftp
> > 23/tcp   open     telnet
> > 156/tcp  filtered sqlsrv
> > 457/tcp  filtered scohelp
> > 515/tcp  open     printer
> > 560/tcp  filtered rmonitor
> > 1987/tcp filtered tr-rsrb-p1
> > 2903/tcp filtered extensisportfolio
> > 3141/tcp filtered vmodem
> > 7004/tcp filtered afs3-kaserver
> > 7010/tcp filtered ups-onlinet
> > 9100/tcp open     jetdirect
> >
> > SO, it seems as though there are several interesting services open here,
> > but maybe there is something wrong with how cups got installed?
> >
> > Paul King
> >
> >
> > --
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> >
> 
> 
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--
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