Another question for (2): If your Mac clients do not see your printers, can you run
lpstat -r lpstat -p
on your Linux server to check whether your CUPS daemon is working? Can you print from your Linux server or from a Linux client?
Can you bring CUPS into debug mode as shown on
https://wiki.ubuntu.com/DebuggingPrintingProblems
and then the next morning when the Macs stop seeing your printers again post your
Can you post your /var/log/cups/error_log
here?
Another question for (2): If your Mac clients do not see your printers, can you run
lpstat -r
lpstat -p
on your Linux server to check whether your CUPS daemon is working? Can you print from your Linux server or from a Linux client?
Can you bring CUPS into debug mode as shown on
https:/ /wiki.ubuntu. com/DebuggingPr intingProblems
and then the next morning when the Macs stop seeing your printers again post your
Can you post your /var/log/ cups/error_ log
here?