The tag has no usage guidance.

learn more… | top users | synonyms

4
votes
0answers
33 views

allow regular users to use network namespaces

I have an architecture using network namespaces (netns). I would like to allow regular users to do some operations in these netns. I could write a script netns-exec.sh, inspired by this post, ...
0
votes
0answers
12 views

how unshare -i/-p/-U and -r works in realtime

Can anyone give examples of unshared command for -i, -p, -U and -r options. I got only -m and -n examples to test my code. And please mention any test cases to test IPv6 for unshared too. Thanks, ...
1
vote
1answer
21 views

Access display from network namespace

I have several network namespaces in my Fedora 21 VM. How can I access display from whithin the network namespace? # ip netns exec n1 xlogo Error: Can't open display: localhost:10.0
0
votes
1answer
51 views

Virtual NIC's in Linux?

How do I create a VNIC interface in linux? What I want to do is create an interface that is linked in some way to a physical interface but functions in its own namespace. I know the physical ...
1
vote
1answer
58 views

How to avoid duplicate connection names? (32) Connection 'Auto Ethernet' is already active on enpXXX

Is there any way that I can make networkmanager to assign some unique names or device derrived name instead of Auto Ethernet so that we can avoid the names conflict? After I've upgraded to Ubuntu ...
2
votes
1answer
136 views

list processes belonging to a network namespace

I am on Ubuntu 12.04, and the ip utility does not have ip netns identify <pid> option, I tried installing new iproute, but still, the option identify doesn't seem to be working!. If I were to ...
2
votes
0answers
35 views

What happens if the last process in a namespace exits?

I am running Linux. I have a single process in a mount namespace. I did in this process a mount -t tmpfs tmpfs /mountpoint. What happens if the process exits and there are no more processes in ...
1
vote
0answers
57 views

running a process in another namespace

I would like to run a new process (for example an xterm) in another network namespace. This could be done like this: sudo ip netns exec otherns sudo -u $USER xterm This command looks a bit ...
1
vote
1answer
65 views

Using a VPN for certain applications via a network namespace

I am trying to use a network namespace for VPN-specific traffic, using this guide: https://schnouki.net/posts/2014/12/12/openvpn-for-a-single-application-on-linux/ on Debian. Everything works with ...
1
vote
1answer
100 views

Sharing the loopback interface across network namespaces

I'm interested in using a separate namespace for running a VPN client, so that every process I run into that namespace accesses the Internet through the VPN. That part I've managed to accomplish. ...
3
votes
0answers
77 views

Is there a thing like “veth”, but without link-level headers?

When I use separate network namespace, I often set up networking there using veth: ip link add type veth ip link set veth0 netns 1 ifconfig veth1 192.168.60.2 ip route add default via 192.168.60.1 ...
3
votes
1answer
92 views

Secure way to allow any user to run programs in specific network namespace

I have a cell modem connected to my server that I want to use as a means to get notification emails out when the landline dies. To nicely separate normal network access and this exceptional cell ...
1
vote
0answers
86 views

Connect with D-Bus in a network namespace

I am using network namespaces such that I can capture network traffic of a single process. The namespace is connected through the "host" via a veth pair and has network connectivity through NAT. So ...
3
votes
1answer
83 views

How to create an internal multipath gateway

Basically trying to bend bridging and NATing to my will with quite a unique project. I've simplified what I'm doing below (VM=Kali virtual machine for testing): ZoneX's are network namespaces, ...
1
vote
0answers
101 views

rsyslog and netsnmp support for Linux namespaces

I have configured different net namespaces (netns) on my linux machine (Ubuntu) with different routes in each. Now, if I want rsyslog and SNMP traps (netsnmp) to use one of the route from these ...
1
vote
0answers
155 views

Running HTTP process as a sole child in PID/NET namespace

First time posting here so I appreciate your help and patience. After reading about namespaces, looking on various forums including this thread and trial and error I'm still looking for answers for a ...
8
votes
4answers
2k views

Feed all traffic through OpenVPN for a specific network namespace only

I am trying to set up a VPN (using OpenVPN) such that all of the traffic, and only the traffic, to/from specific processes goes through the VPN; other processes should continue to use the physical ...