How can non-root user monitor network traffic at command line?
I know that gnome-system-monitor can show me bandwidth even when opened by a non-root user. But tools like iftop, nethogs, etc. all seem to require root to work. How can I allow a regular user to do what gnome-system-monitor does? The application I'm going for is a script that outputs Mb/s up/down every n seconds, used for piping to a status line.
linux bandwidth bash-scripting network-monitoring
asked Nov 7 '15 at 17:12
nullUsernullUser
3381622
add a comment |
I know that gnome-system-monitor can show me bandwidth even when opened by a non-root user. But tools like iftop, nethogs, etc. all seem to require root to work. How can I allow a regular user to do what gnome-system-monitor does? The application I'm going for is a script that outputs Mb/s up/down every n seconds, used for piping to a status line.
linux bandwidth bash-scripting network-monitoring
asked Nov 7 '15 at 17:12
nullUsernullUser
3381622
Non-root cannot monitor network traffic. They can see system-generated totals though
– qasdfdsaq
Nov 9 '15 at 15:15
add a comment |
I know that gnome-system-monitor can show me bandwidth even when opened by a non-root user. But tools like iftop, nethogs, etc. all seem to require root to work. How can I allow a regular user to do what gnome-system-monitor does? The application I'm going for is a script that outputs Mb/s up/down every n seconds, used for piping to a status line.
linux bandwidth bash-scripting network-monitoring
asked Nov 7 '15 at 17:12
nullUsernullUser
3381622
I know that gnome-system-monitor can show me bandwidth even when opened by a non-root user. But tools like iftop, nethogs, etc. all seem to require root to work. How can I allow a regular user to do what gnome-system-monitor does? The application I'm going for is a script that outputs Mb/s up/down every n seconds, used for piping to a status line.
linux bandwidth bash-scripting network-monitoring
linux bandwidth bash-scripting network-monitoring
asked Nov 7 '15 at 17:12
nullUsernullUser
3381622
asked Nov 7 '15 at 17:12
nullUsernullUser
3381622
asked Nov 7 '15 at 17:12
nullUsernullUser
3381622
asked Nov 7 '15 at 17:12
nullUsernullUser
3381622
asked Nov 7 '15 at 17:12
nullUsernullUser
3381622
3381622
Non-root cannot monitor network traffic. They can see system-generated totals though
– qasdfdsaq
Nov 9 '15 at 15:15
add a comment |
Non-root cannot monitor network traffic. They can see system-generated totals though
– qasdfdsaq
Nov 9 '15 at 15:15
Non-root cannot monitor network traffic. They can see system-generated totals though
– qasdfdsaq
Nov 9 '15 at 15:15
Non-root cannot monitor network traffic. They can see system-generated totals though
– qasdfdsaq
Nov 9 '15 at 15:15
add a comment |
3 Answers
3
active
oldest
votes
The data you want is available for everyone, at /proc/net/dev. However, you’ll have to calculate bandwidth yourself, by taking the delta and the time between two values.
Keep in mind though, that these counters may overflow, depending on your system’s architecture and kernel version. Overflow may occur at 232-1 (reachable in a matter of seconds on Gigabit Ethernet) or 264-1 (virtually irrelevant).
answered Nov 7 '15 at 17:16
Daniel BDaniel B
33.5k76187
add a comment |
Dir /sys/class/net/${interface}/statistics/ has all you need.
BASH script based on this: check_bandwidth.sh
answered Nov 9 '15 at 15:05
7171u7171u
1112
add a comment |
Let's assume you're talking about nethogs. We know that nethogs is owned by root if we do ls -l $(which nethogs).
All we need to do now is change the SUID bit so that when nethogs is run, it will run with the permissions of its owner (i.e. root). Run:
sudo chmod u+s $(which nethogs)
And it should work.
answered Jan 5 at 3:59
dualscytherdualscyther
1
add a comment |
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3 Answers
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active
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3 Answers
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active
oldest
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The data you want is available for everyone, at /proc/net/dev. However, you’ll have to calculate bandwidth yourself, by taking the delta and the time between two values.
Keep in mind though, that these counters may overflow, depending on your system’s architecture and kernel version. Overflow may occur at 232-1 (reachable in a matter of seconds on Gigabit Ethernet) or 264-1 (virtually irrelevant).
answered Nov 7 '15 at 17:16
Daniel BDaniel B
33.5k76187
add a comment |
The data you want is available for everyone, at /proc/net/dev. However, you’ll have to calculate bandwidth yourself, by taking the delta and the time between two values.
Keep in mind though, that these counters may overflow, depending on your system’s architecture and kernel version. Overflow may occur at 232-1 (reachable in a matter of seconds on Gigabit Ethernet) or 264-1 (virtually irrelevant).
answered Nov 7 '15 at 17:16
Daniel BDaniel B
33.5k76187
add a comment |
The data you want is available for everyone, at /proc/net/dev. However, you’ll have to calculate bandwidth yourself, by taking the delta and the time between two values.
Keep in mind though, that these counters may overflow, depending on your system’s architecture and kernel version. Overflow may occur at 232-1 (reachable in a matter of seconds on Gigabit Ethernet) or 264-1 (virtually irrelevant).
answered Nov 7 '15 at 17:16
Daniel BDaniel B
33.5k76187
The data you want is available for everyone, at /proc/net/dev. However, you’ll have to calculate bandwidth yourself, by taking the delta and the time between two values.
Keep in mind though, that these counters may overflow, depending on your system’s architecture and kernel version. Overflow may occur at 232-1 (reachable in a matter of seconds on Gigabit Ethernet) or 264-1 (virtually irrelevant).
answered Nov 7 '15 at 17:16
Daniel BDaniel B
33.5k76187
edited Nov 9 '15 at 15:24
answered Nov 7 '15 at 17:16
Daniel BDaniel B
33.5k76187
answered Nov 7 '15 at 17:16
Daniel BDaniel B
33.5k76187
answered Nov 7 '15 at 17:16
Daniel BDaniel B
33.5k76187
33.5k76187
add a comment |
add a comment |
Dir /sys/class/net/${interface}/statistics/ has all you need.
BASH script based on this: check_bandwidth.sh
answered Nov 9 '15 at 15:05
7171u7171u
1112
add a comment |
Dir /sys/class/net/${interface}/statistics/ has all you need.
BASH script based on this: check_bandwidth.sh
answered Nov 9 '15 at 15:05
7171u7171u
1112
add a comment |
Dir /sys/class/net/${interface}/statistics/ has all you need.
BASH script based on this: check_bandwidth.sh
answered Nov 9 '15 at 15:05
7171u7171u
1112
Dir /sys/class/net/${interface}/statistics/ has all you need.
BASH script based on this: check_bandwidth.sh
answered Nov 9 '15 at 15:05
7171u7171u
1112
answered Nov 9 '15 at 15:05
7171u7171u
1112
answered Nov 9 '15 at 15:05
7171u7171u
1112
answered Nov 9 '15 at 15:05
7171u7171u
1112
1112
add a comment |
add a comment |
Let's assume you're talking about nethogs. We know that nethogs is owned by root if we do ls -l $(which nethogs).
All we need to do now is change the SUID bit so that when nethogs is run, it will run with the permissions of its owner (i.e. root). Run:
sudo chmod u+s $(which nethogs)
And it should work.
answered Jan 5 at 3:59
dualscytherdualscyther
1
add a comment |
Let's assume you're talking about nethogs. We know that nethogs is owned by root if we do ls -l $(which nethogs).
All we need to do now is change the SUID bit so that when nethogs is run, it will run with the permissions of its owner (i.e. root). Run:
sudo chmod u+s $(which nethogs)
And it should work.
answered Jan 5 at 3:59
dualscytherdualscyther
1
add a comment |
Let's assume you're talking about nethogs. We know that nethogs is owned by root if we do ls -l $(which nethogs).
All we need to do now is change the SUID bit so that when nethogs is run, it will run with the permissions of its owner (i.e. root). Run:
sudo chmod u+s $(which nethogs)
And it should work.
answered Jan 5 at 3:59
dualscytherdualscyther
1
Let's assume you're talking about nethogs. We know that nethogs is owned by root if we do ls -l $(which nethogs).
All we need to do now is change the SUID bit so that when nethogs is run, it will run with the permissions of its owner (i.e. root). Run:
sudo chmod u+s $(which nethogs)
And it should work.
answered Jan 5 at 3:59
dualscytherdualscyther
1
answered Jan 5 at 3:59
dualscytherdualscyther
1
answered Jan 5 at 3:59
dualscytherdualscyther
1
answered Jan 5 at 3:59
dualscytherdualscyther
1
1
add a comment |
add a comment |
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Non-root cannot monitor network traffic. They can see system-generated totals though
– qasdfdsaq
Nov 9 '15 at 15:15