How to set up several virtual networks - sharing eth0 connection, or only-local, or both? — for VM/Container2019 Community Moderator Electionhow do I create an appropriate drive for a libvirt virtual machine?How to combine several partitions into one virtual drive?How do I use xhost for linking the display of one virtual terminal device to another?Virtual LANs in memory for several virtual machines on one hostSamba: How to permit access to a shared folder only for QEMU-guests, but not for other users?How to find the network namespace of a veth peer ifindex?How can I enable a virtual machine on KVM to use the WiFi connection on my Ubuntu 18 laptop?
In the late 1940’s to early 1950’s what technology was available that could melt a LOT of ice?
How do I express some one as a black person?
Latest web browser compatible with Windows 98
How do I deal with a powergamer in a game full of beginners in a school club?
Space in array system equations
Do any of the books contain (magic) items for animal companions?
Should I tell my boss the work he did was worthless
Rejected in 4th interview round citing insufficient years of experience
Is it true that real estate prices mainly go up?
Virginia employer terminated employee and wants signing bonus returned
Does "variables should live in the smallest scope as possible" include the case "variables should not exist if possible"?
What are some noteworthy "mic-drop" moments in math?
Placing subfig vertically
Is Gradient Descent central to every optimizer?
Finding algorithms of QGIS commands?
htop displays identical program in multiple lines
Are the terms "stab" and "staccato" synonyms?
Word for a person who has no opinion about whether god exists
Exporting list of URLs
infinitive telling the purpose
Offered promotion but I'm leaving. Should I tell?
How do you like my writing?
What to do when during a meeting client people start to fight (even physically) with each others?
Unreachable code, but reachable with exception
How to set up several virtual networks - sharing eth0 connection, or only-local, or both? — for VM/Container
2019 Community Moderator Electionhow do I create an appropriate drive for a libvirt virtual machine?How to combine several partitions into one virtual drive?How do I use xhost for linking the display of one virtual terminal device to another?Virtual LANs in memory for several virtual machines on one hostSamba: How to permit access to a shared folder only for QEMU-guests, but not for other users?How to find the network namespace of a veth peer ifindex?How can I enable a virtual machine on KVM to use the WiFi connection on my Ubuntu 18 laptop?
I wish to generate a number of virtual Ethernet ports to be used for containers and VMs, for the three following scenarios:
- Sharing the existing eth0 which has previously been assigned an IP address by DHCP - switching it if you will - but disallowing 127.0.0.0/8 connections (isolated network, for processes in containers hiding other processes).
- Allowing local-only connections, only seeing things on the local host but hiding external (for containered processes not allowed to connect to the outside world, like unplugging eth0 cable then running it).
- Allowing local (existing 127.0.0.0/8) as well as sharing existing eth0 interface.
The resulting ip commands would be setting up the interface plus the firewall rules (iptables / bpfilter) and possibly masquerading settings.
PS: "Container" as above = (kernel) namespaces + cgroups + seccomp as created by programs like bwrap and firejail.
virtual-machine iproute firejail veth
edited Jan 26 at 18:17
Rui F Ribeiro
41.4k1481140
asked Jan 25 at 13:34
Ned64Ned64
2,57911336
This question has an open bounty worth +50
reputation from Ned64 ending ending at 2019-03-19 16:47:04Z">in 7 days.
This question has not received enough attention.
The question was asked so that an answer would be like a how-to, useful to the top scenarios and to many people. Please consider contributing an answer that explains the virtual device and routing setup.
add a comment |
I wish to generate a number of virtual Ethernet ports to be used for containers and VMs, for the three following scenarios:
- Sharing the existing eth0 which has previously been assigned an IP address by DHCP - switching it if you will - but disallowing 127.0.0.0/8 connections (isolated network, for processes in containers hiding other processes).
- Allowing local-only connections, only seeing things on the local host but hiding external (for containered processes not allowed to connect to the outside world, like unplugging eth0 cable then running it).
- Allowing local (existing 127.0.0.0/8) as well as sharing existing eth0 interface.
The resulting ip commands would be setting up the interface plus the firewall rules (iptables / bpfilter) and possibly masquerading settings.
PS: "Container" as above = (kernel) namespaces + cgroups + seccomp as created by programs like bwrap and firejail.
virtual-machine iproute firejail veth
edited Jan 26 at 18:17
Rui F Ribeiro
41.4k1481140
asked Jan 25 at 13:34
Ned64Ned64
2,57911336
This question has an open bounty worth +50
reputation from Ned64 ending ending at 2019-03-19 16:47:04Z">in 7 days.
This question has not received enough attention.
The question was asked so that an answer would be like a how-to, useful to the top scenarios and to many people. Please consider contributing an answer that explains the virtual device and routing setup.
add a comment |
I wish to generate a number of virtual Ethernet ports to be used for containers and VMs, for the three following scenarios:
- Sharing the existing eth0 which has previously been assigned an IP address by DHCP - switching it if you will - but disallowing 127.0.0.0/8 connections (isolated network, for processes in containers hiding other processes).
- Allowing local-only connections, only seeing things on the local host but hiding external (for containered processes not allowed to connect to the outside world, like unplugging eth0 cable then running it).
- Allowing local (existing 127.0.0.0/8) as well as sharing existing eth0 interface.
The resulting ip commands would be setting up the interface plus the firewall rules (iptables / bpfilter) and possibly masquerading settings.
PS: "Container" as above = (kernel) namespaces + cgroups + seccomp as created by programs like bwrap and firejail.
virtual-machine iproute firejail veth
edited Jan 26 at 18:17
Rui F Ribeiro
41.4k1481140
asked Jan 25 at 13:34
Ned64Ned64
2,57911336
I wish to generate a number of virtual Ethernet ports to be used for containers and VMs, for the three following scenarios:
- Sharing the existing eth0 which has previously been assigned an IP address by DHCP - switching it if you will - but disallowing 127.0.0.0/8 connections (isolated network, for processes in containers hiding other processes).
- Allowing local-only connections, only seeing things on the local host but hiding external (for containered processes not allowed to connect to the outside world, like unplugging eth0 cable then running it).
- Allowing local (existing 127.0.0.0/8) as well as sharing existing eth0 interface.
The resulting ip commands would be setting up the interface plus the firewall rules (iptables / bpfilter) and possibly masquerading settings.
PS: "Container" as above = (kernel) namespaces + cgroups + seccomp as created by programs like bwrap and firejail.
virtual-machine iproute firejail veth
virtual-machine iproute firejail veth
edited Jan 26 at 18:17
Rui F Ribeiro
41.4k1481140
asked Jan 25 at 13:34
Ned64Ned64
2,57911336
edited Jan 26 at 18:17
Rui F Ribeiro
41.4k1481140
asked Jan 25 at 13:34
Ned64Ned64
2,57911336
edited Jan 26 at 18:17
Rui F Ribeiro
41.4k1481140
edited Jan 26 at 18:17
Rui F Ribeiro
41.4k1481140
edited Jan 26 at 18:17
Rui F Ribeiro
41.4k1481140
41.4k1481140
asked Jan 25 at 13:34
Ned64Ned64
2,57911336
asked Jan 25 at 13:34
Ned64Ned64
2,57911336
asked Jan 25 at 13:34
Ned64Ned64
2,57911336
2,57911336
This question has an open bounty worth +50
reputation from Ned64 ending ending at 2019-03-19 16:47:04Z">in 7 days.
This question has not received enough attention.
The question was asked so that an answer would be like a how-to, useful to the top scenarios and to many people. Please consider contributing an answer that explains the virtual device and routing setup.
This question has an open bounty worth +50
reputation from Ned64 ending ending at 2019-03-19 16:47:04Z">in 7 days.
This question has not received enough attention.
The question was asked so that an answer would be like a how-to, useful to the top scenarios and to many people. Please consider contributing an answer that explains the virtual device and routing setup.
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "106"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f496669%2fhow-to-set-up-several-virtual-networks-sharing-eth0-connection-or-only-local%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Unix & Linux Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f496669%2fhow-to-set-up-several-virtual-networks-sharing-eth0-connection-or-only-local%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
-firejail, iproute, veth, virtual-machine
