How can I limit engagement with a large office LAN?
I work in a large office building with hundreds of other computers on the same LAN. I don't have any reason to communicate with most of these computers, and when I do, it's always on an "opt-in" basis (like adding a network mount to my fstab). But Linux Mint is automatically adding printers throughout the building, and the "Network" sidebar in my file manager is filled with computers that belong to people I don't know. Finally, /var/log/syslog is filled with entries like the following, that make it difficult to find issues of real importance:
org.gtk.vfs.Daemon[2500]: ** (process:6388): WARNING **: Failed to resolve service name 'XXX': Too many objects
avahi-daemon[872]: dbus-protocol.c: Too many objects for client ':1.65', client request failed.
I would like to disable this automatic discovery of services, especially printers and network shares. I also would like to ensure that my computer is not automatically broadcasting any information about itself to the rest of the LAN.
What steps should I take to do this? Is it sufficient to disable avahi-daemon?
networking printing cups lan avahi
asked Oct 18 '18 at 16:33
cxrodgers
12617
add a comment |
I work in a large office building with hundreds of other computers on the same LAN. I don't have any reason to communicate with most of these computers, and when I do, it's always on an "opt-in" basis (like adding a network mount to my fstab). But Linux Mint is automatically adding printers throughout the building, and the "Network" sidebar in my file manager is filled with computers that belong to people I don't know. Finally, /var/log/syslog is filled with entries like the following, that make it difficult to find issues of real importance:
org.gtk.vfs.Daemon[2500]: ** (process:6388): WARNING **: Failed to resolve service name 'XXX': Too many objects
avahi-daemon[872]: dbus-protocol.c: Too many objects for client ':1.65', client request failed.
I would like to disable this automatic discovery of services, especially printers and network shares. I also would like to ensure that my computer is not automatically broadcasting any information about itself to the rest of the LAN.
What steps should I take to do this? Is it sufficient to disable avahi-daemon?
networking printing cups lan avahi
asked Oct 18 '18 at 16:33
cxrodgers
12617
1
That depends on exactly how these devices are discovered. Yes, first guess (and first step) would be to disable avahi. If you still have devices/printers after that, next step is to investigate why those show up.
– dirkt
Oct 19 '18 at 6:24
Disabling the avahi-daemon in toto may deprive you of other (than print) services, which you may still want or need.
– Kurt Pfeifle
Dec 24 '18 at 23:43
add a comment |
I work in a large office building with hundreds of other computers on the same LAN. I don't have any reason to communicate with most of these computers, and when I do, it's always on an "opt-in" basis (like adding a network mount to my fstab). But Linux Mint is automatically adding printers throughout the building, and the "Network" sidebar in my file manager is filled with computers that belong to people I don't know. Finally, /var/log/syslog is filled with entries like the following, that make it difficult to find issues of real importance:
org.gtk.vfs.Daemon[2500]: ** (process:6388): WARNING **: Failed to resolve service name 'XXX': Too many objects
avahi-daemon[872]: dbus-protocol.c: Too many objects for client ':1.65', client request failed.
I would like to disable this automatic discovery of services, especially printers and network shares. I also would like to ensure that my computer is not automatically broadcasting any information about itself to the rest of the LAN.
What steps should I take to do this? Is it sufficient to disable avahi-daemon?
networking printing cups lan avahi
asked Oct 18 '18 at 16:33
cxrodgers
12617
I work in a large office building with hundreds of other computers on the same LAN. I don't have any reason to communicate with most of these computers, and when I do, it's always on an "opt-in" basis (like adding a network mount to my fstab). But Linux Mint is automatically adding printers throughout the building, and the "Network" sidebar in my file manager is filled with computers that belong to people I don't know. Finally, /var/log/syslog is filled with entries like the following, that make it difficult to find issues of real importance:
org.gtk.vfs.Daemon[2500]: ** (process:6388): WARNING **: Failed to resolve service name 'XXX': Too many objects
avahi-daemon[872]: dbus-protocol.c: Too many objects for client ':1.65', client request failed.
I would like to disable this automatic discovery of services, especially printers and network shares. I also would like to ensure that my computer is not automatically broadcasting any information about itself to the rest of the LAN.
What steps should I take to do this? Is it sufficient to disable avahi-daemon?
networking printing cups lan avahi
networking printing cups lan avahi
asked Oct 18 '18 at 16:33
cxrodgers
12617
asked Oct 18 '18 at 16:33
cxrodgers
12617
asked Oct 18 '18 at 16:33
cxrodgers
12617
asked Oct 18 '18 at 16:33
cxrodgers
12617
asked Oct 18 '18 at 16:33
cxrodgers
12617
12617
1
That depends on exactly how these devices are discovered. Yes, first guess (and first step) would be to disable avahi. If you still have devices/printers after that, next step is to investigate why those show up.
– dirkt
Oct 19 '18 at 6:24
Disabling the avahi-daemon in toto may deprive you of other (than print) services, which you may still want or need.
– Kurt Pfeifle
Dec 24 '18 at 23:43
add a comment |
1
That depends on exactly how these devices are discovered. Yes, first guess (and first step) would be to disable avahi. If you still have devices/printers after that, next step is to investigate why those show up.
– dirkt
Oct 19 '18 at 6:24
Disabling the avahi-daemon in toto may deprive you of other (than print) services, which you may still want or need.
– Kurt Pfeifle
Dec 24 '18 at 23:43
1
1
That depends on exactly how these devices are discovered. Yes, first guess (and first step) would be to disable avahi. If you still have devices/printers after that, next step is to investigate why those show up.
– dirkt
Oct 19 '18 at 6:24
That depends on exactly how these devices are discovered. Yes, first guess (and first step) would be to disable avahi. If you still have devices/printers after that, next step is to investigate why those show up.
– dirkt
Oct 19 '18 at 6:24
Disabling the avahi-daemon in toto may deprive you of other (than print) services, which you may still want or need.
– Kurt Pfeifle
Dec 24 '18 at 23:43
Disabling the avahi-daemon in toto may deprive you of other (than print) services, which you may still want or need.
– Kurt Pfeifle
Dec 24 '18 at 23:43
add a comment |
1 Answer
1
active
oldest
votes
Stop the CUPS service (embodied by a process called
cupsd), for example
sudo service cups stop
Open /etc/cups/cupsd.conf in your favorite editor, for example
sudo vim /etc/cups/cupsd.conf
Look if there is a line in this file saying
Browsing Yes
and change this line to
Browsing No
This should disable the sharing of your own print queues installed locally with the other computers in the same network. (I'm simply assuming you do not want this, given that you also do not want to 'see' other printers shared by other computers...)
Likewise, make sure that file has the following lines:
BrowseLocalProtocols none
BrowseDNSSDSubTypes none
DefaultShared No
The first two should disable the automatic addition of printers shared on the network.
Now start the CUPS service again, for example
sudo service cups start
answered Dec 24 '18 at 23:42
Kurt Pfeifle
47038
add a comment |
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1 Answer
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oldest
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1 Answer
1
active
oldest
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active
oldest
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active
oldest
votes
Stop the CUPS service (embodied by a process called
cupsd), for example
sudo service cups stop
Open /etc/cups/cupsd.conf in your favorite editor, for example
sudo vim /etc/cups/cupsd.conf
Look if there is a line in this file saying
Browsing Yes
and change this line to
Browsing No
This should disable the sharing of your own print queues installed locally with the other computers in the same network. (I'm simply assuming you do not want this, given that you also do not want to 'see' other printers shared by other computers...)
Likewise, make sure that file has the following lines:
BrowseLocalProtocols none
BrowseDNSSDSubTypes none
DefaultShared No
The first two should disable the automatic addition of printers shared on the network.
Now start the CUPS service again, for example
sudo service cups start
answered Dec 24 '18 at 23:42
Kurt Pfeifle
47038
add a comment |
Stop the CUPS service (embodied by a process called
cupsd), for example
sudo service cups stop
Open /etc/cups/cupsd.conf in your favorite editor, for example
sudo vim /etc/cups/cupsd.conf
Look if there is a line in this file saying
Browsing Yes
and change this line to
Browsing No
This should disable the sharing of your own print queues installed locally with the other computers in the same network. (I'm simply assuming you do not want this, given that you also do not want to 'see' other printers shared by other computers...)
Likewise, make sure that file has the following lines:
BrowseLocalProtocols none
BrowseDNSSDSubTypes none
DefaultShared No
The first two should disable the automatic addition of printers shared on the network.
Now start the CUPS service again, for example
sudo service cups start
answered Dec 24 '18 at 23:42
Kurt Pfeifle
47038
add a comment |
Stop the CUPS service (embodied by a process called
cupsd), for example
sudo service cups stop
Open /etc/cups/cupsd.conf in your favorite editor, for example
sudo vim /etc/cups/cupsd.conf
Look if there is a line in this file saying
Browsing Yes
and change this line to
Browsing No
This should disable the sharing of your own print queues installed locally with the other computers in the same network. (I'm simply assuming you do not want this, given that you also do not want to 'see' other printers shared by other computers...)
Likewise, make sure that file has the following lines:
BrowseLocalProtocols none
BrowseDNSSDSubTypes none
DefaultShared No
The first two should disable the automatic addition of printers shared on the network.
Now start the CUPS service again, for example
sudo service cups start
answered Dec 24 '18 at 23:42
Kurt Pfeifle
47038
Stop the CUPS service (embodied by a process called
cupsd), for example
sudo service cups stop
Open /etc/cups/cupsd.conf in your favorite editor, for example
sudo vim /etc/cups/cupsd.conf
Look if there is a line in this file saying
Browsing Yes
and change this line to
Browsing No
This should disable the sharing of your own print queues installed locally with the other computers in the same network. (I'm simply assuming you do not want this, given that you also do not want to 'see' other printers shared by other computers...)
Likewise, make sure that file has the following lines:
BrowseLocalProtocols none
BrowseDNSSDSubTypes none
DefaultShared No
The first two should disable the automatic addition of printers shared on the network.
Now start the CUPS service again, for example
sudo service cups start
answered Dec 24 '18 at 23:42
Kurt Pfeifle
47038
answered Dec 24 '18 at 23:42
Kurt Pfeifle
47038
answered Dec 24 '18 at 23:42
Kurt Pfeifle
47038
answered Dec 24 '18 at 23:42
Kurt Pfeifle
47038
47038
add a comment |
add a comment |
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1
That depends on exactly how these devices are discovered. Yes, first guess (and first step) would be to disable avahi. If you still have devices/printers after that, next step is to investigate why those show up.
– dirkt
Oct 19 '18 at 6:24
Disabling the avahi-daemon in toto may deprive you of other (than print) services, which you may still want or need.
– Kurt Pfeifle
Dec 24 '18 at 23:43