How can I list all connections to my host, including those to LXC guests?
I tried both netstat and lsof, but it appears it's not possible to see the connections to my LXC guests.
Is there a way to achieve this ... for all guests at once?
Essentially what throws me off here is the fact that I can see the processes of the guests as long as I run as superuser. I can also see the veth interfaces that get dynamically created per guest. Why can I not see connections on processes that are otherwise visible?
lxc userns
asked May 16 '15 at 0:09
0xC0000022L0xC0000022L
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I tried both netstat and lsof, but it appears it's not possible to see the connections to my LXC guests.
Is there a way to achieve this ... for all guests at once?
Essentially what throws me off here is the fact that I can see the processes of the guests as long as I run as superuser. I can also see the veth interfaces that get dynamically created per guest. Why can I not see connections on processes that are otherwise visible?
lxc userns
asked May 16 '15 at 0:09
0xC0000022L0xC0000022L
7,4461564118
bumped to the homepage by Community♦ 2 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
I tried both netstat and lsof, but it appears it's not possible to see the connections to my LXC guests.
Is there a way to achieve this ... for all guests at once?
Essentially what throws me off here is the fact that I can see the processes of the guests as long as I run as superuser. I can also see the veth interfaces that get dynamically created per guest. Why can I not see connections on processes that are otherwise visible?
lxc userns
asked May 16 '15 at 0:09
0xC0000022L0xC0000022L
7,4461564118
I tried both netstat and lsof, but it appears it's not possible to see the connections to my LXC guests.
Is there a way to achieve this ... for all guests at once?
Essentially what throws me off here is the fact that I can see the processes of the guests as long as I run as superuser. I can also see the veth interfaces that get dynamically created per guest. Why can I not see connections on processes that are otherwise visible?
lxc userns
lxc userns
asked May 16 '15 at 0:09
0xC0000022L0xC0000022L
7,4461564118
asked May 16 '15 at 0:09
0xC0000022L0xC0000022L
7,4461564118
asked May 16 '15 at 0:09
0xC0000022L0xC0000022L
7,4461564118
asked May 16 '15 at 0:09
0xC0000022L0xC0000022L
7,4461564118
asked May 16 '15 at 0:09
0xC0000022L0xC0000022L
7,4461564118
7,4461564118
bumped to the homepage by Community♦ 2 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 2 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
add a comment |
2 Answers
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I think https://stackoverflow.com/a/40352004/1951468 should answer you.
So basically, the only way is a loop around your containers and nsenter.
answered Dec 21 '17 at 10:39
SilexSilex
101
add a comment |
So far I had luck getting the container connections by running netstat from the container:
sudo docker exec -it <containerIdOrName> netstat
Obviously, the container needs to have it installed.
answered Oct 9 '15 at 21:56
AXE-LabsAXE-Labs
1793
add a comment |
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2 Answers
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2 Answers
2
active
oldest
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active
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active
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I think https://stackoverflow.com/a/40352004/1951468 should answer you.
So basically, the only way is a loop around your containers and nsenter.
answered Dec 21 '17 at 10:39
SilexSilex
101
add a comment |
I think https://stackoverflow.com/a/40352004/1951468 should answer you.
So basically, the only way is a loop around your containers and nsenter.
answered Dec 21 '17 at 10:39
SilexSilex
101
add a comment |
I think https://stackoverflow.com/a/40352004/1951468 should answer you.
So basically, the only way is a loop around your containers and nsenter.
answered Dec 21 '17 at 10:39
SilexSilex
101
I think https://stackoverflow.com/a/40352004/1951468 should answer you.
So basically, the only way is a loop around your containers and nsenter.
answered Dec 21 '17 at 10:39
SilexSilex
101
answered Dec 21 '17 at 10:39
SilexSilex
101
answered Dec 21 '17 at 10:39
SilexSilex
101
answered Dec 21 '17 at 10:39
SilexSilex
101
101
add a comment |
add a comment |
So far I had luck getting the container connections by running netstat from the container:
sudo docker exec -it <containerIdOrName> netstat
Obviously, the container needs to have it installed.
answered Oct 9 '15 at 21:56
AXE-LabsAXE-Labs
1793
add a comment |
So far I had luck getting the container connections by running netstat from the container:
sudo docker exec -it <containerIdOrName> netstat
Obviously, the container needs to have it installed.
answered Oct 9 '15 at 21:56
AXE-LabsAXE-Labs
1793
add a comment |
So far I had luck getting the container connections by running netstat from the container:
sudo docker exec -it <containerIdOrName> netstat
Obviously, the container needs to have it installed.
answered Oct 9 '15 at 21:56
AXE-LabsAXE-Labs
1793
So far I had luck getting the container connections by running netstat from the container:
sudo docker exec -it <containerIdOrName> netstat
Obviously, the container needs to have it installed.
answered Oct 9 '15 at 21:56
AXE-LabsAXE-Labs
1793
edited Apr 5 '16 at 19:01
answered Oct 9 '15 at 21:56
AXE-LabsAXE-Labs
1793
answered Oct 9 '15 at 21:56
AXE-LabsAXE-Labs
1793
answered Oct 9 '15 at 21:56
AXE-LabsAXE-Labs
1793
1793
add a comment |
add a comment |
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