Network printing circuit
Network printing involves the following subsystems:
- The LPRng print server: This service directly drives the
Four types of printers are supported:
All printers are defined in the /etc/printcap file.
- Parallel port printers directly attached to ltnb0, such as
- HP Jet-direct printers, which have their own integrated lpd
print server (in a certain number of classrooms).
- Printers attached to other Unix machines, where another LPRng or
lpd server is running (such as the printers in conférence).
- Printers attached to Windows machines.
- The pdfwrite virtual printer, which transforms the
document into pdf (mailed back to sender), rather than physically
- Samba server: forwards
print requests from Windows clients to LPRng. All "print" shares
which are supposed to be accessible from Windows should be defined in
- Unix clients: connect directly to LPRng
- Windows clients: connect via Samba
- Smbclient is used to connect back to printers attached to
- Pdfwrite transforms print job into a PDF file, and injects
it into mail system.
Needed cisco ports
As network printing is a purely internal service, no Cisco ports need
to be open for this.