Re: Finding out what por to open on the firewall

2017-05-06 Thread Tim
Allegedly, on or about 06 May 2017, Javier Perez sent: > Ended up accepting all the traffic from the printer IP on the > firewall. > > Now it works. Forgot to add: Now that it works, do a check on what traffic is going to and from the device, and see if you can figure out which particular ports

Re: Finding out what por to open on the firewall

2017-05-06 Thread Tim
Allegedly, on or about 06 May 2017, Javier Perez sent: > Tried with tcdump -n host printer_ip and opened up all the ports I > could see on the dump. Did not work out. Just being cautious, but did you write the IP of the printer, or did you actually type in "tcdump -n host printer_ip"? It ought

Re: Finding out what por to open on the firewall

2017-05-06 Thread Javier Perez
Tried with tcdump -n host printer_ip and opened up all the ports I could see on the dump. Did not work out. Ended up accepting all the traffic from the printer IP on the firewall. Now it works. Thanks JP On Fri, May 5, 2017 at 1:19 PM, Doug wrote: > > On 05/05/2017

Re: Finding out what por to open on the firewall

2017-05-05 Thread Doug
On 05/05/2017 01:16 PM, Tim wrote: François Patte wrote: You have a list of ports and associated devices/protocols in /etc/serveces Doug: Tried the command from root in pclos and got permission denied. I don't know what if any ports are in use for anything, but I figured I might find out.

Re: Finding out what por to open on the firewall

2017-05-05 Thread Tim
François Patte wrote: >> You have a list of ports and associated devices/protocols in /etc/serveces Doug: > Tried the command from root in pclos and got permission denied. I > don't know what if any ports are in use for anything, but I figured I > might find out. I'm surprised that root

Re: Finding out what por to open on the firewall

2017-05-05 Thread Javier Perez
On Fri, May 5, 2017 at 11:33 AM, Rick Stevens wrote: > On 05/05/2017 09:19 AM, Doug wrote: > > > > You could use tcpdump to watch network I/O. In a nutshell: 1. Stop the firewall 2. In a terminal window, run (as the root user): tcpdump -n host (ideal if you

Re: Finding out what por to open on the firewall

2017-05-05 Thread Javier Perez
On Fri, May 5, 2017 at 10:17 AM, François Patte < francois.pa...@mi.parisdescartes.fr> wrote: > Le 05/05/2017 à 17:06, Javier Perez a écrit : > > >printer: ipp protocol port 631 > > > > > >You have a list of ports and associated devices/protocols in /etc/serveces > > Not really. My problem is not

Re: Finding out what por to open on the firewall

2017-05-05 Thread Patrick O'Callaghan
On Fri, 2017-05-05 at 17:13 +0100, Patrick O'Callaghan wrote: > On Fri, 2017-05-05 at 18:04 +0200, Louis Lagendijk wrote: > > > I agree it may be a firewall problem, but opening port 631 makes no > > > difference whatever (and as I say, the print function was already > > > working). > > > > > >

Re: Finding out what por to open on the firewall

2017-05-05 Thread Rick Stevens
On 05/05/2017 09:19 AM, Doug wrote: > > On 05/05/2017 11:17 AM, François Patte wrote: >> Le 05/05/2017 à 17:06, Javier Perez a écrit : >>> Hi. >>> I guess this is more like a general Linux question. >>> >>> How can I find out on my Fedora 25 what port I have to open up for a >>> program to work?

Re: Finding out what por to open on the firewall

2017-05-05 Thread Mike Wright
On 05/05/2017 08:06 AM, Javier Perez wrote: Hi. I guess this is more like a general Linux question. How can I find out on my Fedora 25 what port I have to open up for a program to work? I've had good luck using tcpdump to see what ports are being tried.

Re: Finding out what por to open on the firewall

2017-05-05 Thread Doug
On 05/05/2017 11:17 AM, François Patte wrote: Le 05/05/2017 à 17:06, Javier Perez a écrit : Hi. I guess this is more like a general Linux question. How can I find out on my Fedora 25 what port I have to open up for a program to work? I recently purchased a Multifunction Canon Printer TS5000

Re: Finding out what por to open on the firewall

2017-05-05 Thread Patrick O'Callaghan
On Fri, 2017-05-05 at 18:04 +0200, Louis Lagendijk wrote: > > I agree it may be a firewall problem, but opening port 631 makes no > > difference whatever (and as I say, the print function was already > > working). > > > > Scangear most likely uses port 8612 (open it for TCP + UDP). For > details

Re: Finding out what por to open on the firewall

2017-05-05 Thread Louis Lagendijk
On Fri, 2017-05-05 at 16:57 +0100, Patrick O'Callaghan wrote: > On Fri, 2017-05-05 at 17:17 +0200, François Patte wrote: > > Le 05/05/2017 à 17:06, Javier Perez a écrit : > > > Hi. > > > I guess this is more like a general Linux question. > > > > > > How can I find out on my Fedora 25 what port I

Re: Finding out what por to open on the firewall

2017-05-05 Thread Patrick O'Callaghan
On Fri, 2017-05-05 at 17:17 +0200, François Patte wrote: > Le 05/05/2017 à 17:06, Javier Perez a écrit : > > Hi. > > I guess this is more like a general Linux question. > > > > How can I find out on my Fedora 25 what port I have to open up for a > > program to work? > > > > I recently purchased

Re: Finding out what por to open on the firewall

2017-05-05 Thread François Patte
Le 05/05/2017 à 17:06, Javier Perez a écrit : > Hi. > I guess this is more like a general Linux question. > > How can I find out on my Fedora 25 what port I have to open up for a > program to work? > > I recently purchased a Multifunction Canon Printer TS5000 series. They > use a propetary

Finding out what por to open on the firewall

2017-05-05 Thread Javier Perez
Hi. I guess this is more like a general Linux question. How can I find out on my Fedora 25 what port I have to open up for a program to work? I recently purchased a Multifunction Canon Printer TS5000 series. They use a propetary program for scanning images called ScangearMP . When I execute