Check out my first novel, midnight's simulacra!
Tunneling: Difference between revisions
From dankwiki
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
See also [[VXLAN]]. | See also [[VXLAN]]. | ||
==IPIP== | |||
* Defined in 2003's [https://tools.ietf.org/html/rfc2003 RFC 2003]. | |||
* Cannot send multicast. | |||
==SSH== | ==SSH== | ||
Latest revision as of 07:05, 1 November 2020
See also VXLAN.
IPIP
- Defined in 2003's RFC 2003.
- Cannot send multicast.
SSH
This information largely pertains to OpenSSH, although other SSH agents ought theoretically be able to implement similar functionality.
- Individual TCP ports can be forwarded using the -L and -R options. The latter involves an RFC 4254 "tcpip-forward"-type request.
- Set the ExitOnForwardFailure configuration directive to yes to reliably detect forwarding failures
- X11 can be forwarded using the -X option. This will involve "x11"-type requests.
- Arbitrary Ethernet ("ethernet") or IP ("point-to-point") tunnel devices can be forwarded with -w.
- The remote side must have set PermitTunnel to yes or a value matching the configured TunnelDevice type
OpenVPN
Steganography
- snow tunnels octets under trailing whitespace in ASCII lines
Special-purpose tools
- udptunnel tunnels UDP under TCP
- ptunnel tunnels TCP under ICMP Echo-Request/Echo-Reply
- httptunnel tunnels octets under HTTP
External links
- "An introduction to Linux virtual interfaces: Tunnels" on Red Hat Developer Blog, 2019-05-17
