TUNCTL(8) System Manager's Manual TUNCTL(8)NAME
tunctl -- create and manage persistent TUN/TAP interfaces
SYNOPSIS
tunctl [-f tun-clone-device] [-u owner] [-t device-name]
tunctl [-f tun-clone-device] -d device-name
DESCRIPTION
This manual page documents briefly the tunctl command.
This manual page was written for the Debian GNU/Linux distribution because the original program does not have a manual page. Instead, it
has documentation in HTML format; see below.
tunctl allows the host sysadmin to preconfigure a TUN/TAP device for use by a particular user. That user may open and use the device, but
may not change any aspects of the host side of the interface.
USAGE
To create an interface for use by a particular user, invoke tunctl without the -d option:
#
tunctl -u someuser
Set 'tap0' persistent and owned by 'someuser'
Then, configure the interface as normal:
#
ifconfig tap0 192.168.0.254 up
#
route add -host 192.168.0.253 dev tap0
#
bash -c 'echo 1 > /proc/sys/net/ipv4/conf/tap0/proxy_arp'
#
arp -Ds 192.168.0.253 eth0 pub
To delete the interface, use the -d option:
#
tunctl -d tap0
Set 'tap0' nonpersistent
SEE ALSO
The UserModeLinux-HOWTO (link to URL http://user-mode-linux.sourceforge.net/UserModeLinux-HOWTO.html)
AUTHOR
tunctl was written by Jeff Dike jdike@karaya.com
This manual page was written by Matt Zimmerman mdz@debian.org for the Debian GNU/Linux system, based on examples from Jeff Dike.
TUNCTL(8)
Check Out this Related Man Page
UML_MKCOW(1) General Commands Manual UML_MKCOW(1)NAME
uml_mkcow -- create a new COW file
SYNOPSIS
uml_mkcow [-f] [COW_file] [backing_file]
DESCRIPTION
This manual page documents briefly the uml_mkcow command.
This manual page was written for the Debian GNU/Linux distribution because the original program does not have a manual page. Instead, it
has documentation in HTML format; see below.
uml_mkcow is a small utility to create COW (Copy-On-Write) files without the need to run the full UML kernel.
NOTE: you can save a lot of disk space using COW files. When checking the size of the COW file in order to see the gobs of space that
you're saving, make sure you use 'ls -ls' to see the actual disk consumption rather than the length of the file. The COW file is sparse, so
the length will be very different from the disk usage.
OPTIONS -f Force overwrite of an exsiting COW file.
EXAMPLES
Create a new COW file:
uml_mkcow rootfs_COW rootfs
Overwrite (destroying) an existing COW file:
uml_mkcow -f rootfs_COW rootfs
SEE ALSO
The UserModeLinux-HOWTO (link to URL http://user-mode-linux.sourceforge.net/UserModeLinux-HOWTO.html)
AUTHOR
uml_mkcow was written by Steve Schnepp.
This manual page was written by Mattia Dongili malattia@debian.org for the Debian GNU/Linux system, based on material in the UserModeLinux-
HOWTO by Rusty Russell.
UML_MKCOW(1)
hi frnds
here i m trying to configure OTRS instance but i m getting the following error message
while runnning through browser.
I m writing the following http://192.168.1.55:8080/otrs2/index.pl
"
#!/usr/bin/perl -w... (7 Replies)
# cat test
mpath0:253:8:L--w:0:1:2:mpath-2000b080008002158
mpath19:253:7:L--w:0:1:1:mpath-2000b080013002158
mpath21:253:9:L--w:0:1:0:mpath-2000b080015002158
mpath18:253:6:L--w:0:1:1:mpath-2000b080012002158
mpath12:253:1:L--w:0:1:2:mpath-2000b080009002158
#
The above is the i/p and the... (3 Replies)
Hi All,
Here's a flummoxer...
I have 2 E450s (still! yes, I know), on one if I run the command:
useradd -d /export/home/someuser-m -s /bin/ksh -c "Regular User Account" someuser
...it creates a userid with the home dir where I expected it.
On the other box if I run exactly the same... (3 Replies)
hi all,
I can't get my index.html to display on the web browser. Please point it out the reason.
this is what i had done so far:
1. I have registered a dns name pointing to my public ip (it is done automatic)
2. my server name is set same as the dns name
3. I have configured... (14 Replies)
I got the following info from this forum, in regards to configuring my
Solaris x86 to link to the Net:
# echo 192.168.0.1 > /etc/defaultrouter
# route add default 192.168.0.1
# echo nameserver 192.168.0.1 >> /etc/resolv.conf
# cp /etc/nsswitch.dns /etc/nsswitch.conf
So I did... (1 Reply)
Hilarious! :D
enjoy
Jeff Dunham and Peanut Pt1
tz3iYkAaodQ
Jeff Dunham and Peanut Pt2
TCNa63yRTgI
Jeff Dunham and Peanut Pt3
lJ_AfNJ1jG4
Jeff Dunham and Melvin the superhero
HLtxuQGBxoY (0 Replies)
Before posting questions about Linux hardware, it is a good idea to check the Linux Hardware HOWTO guide (Last Update: 2007-05-22)
However, this HOWTO has not been maintained since 2007 and it out-of-date. (0 Replies)
This is my situation
DOS pc serial cable (sl0) Linux Pc eth1
192.168.0.10 <-------------------->192.168.0.2 <------------>192.168.0.1 (router)
I connected the linux pc and the dos pc with a SLIP (serial line internet protocol), so they can communicate in the sl0 interface.
... (3 Replies)
We currently use TUN as an emulation program to connect to various unix applications. I am looking at moving to PuTTY release 0.60 but am getting stuck as one application runs a macro at startup to run a program.
My question is, can you run a macro from PuTTY?
Any pointers would be great. (0 Replies)
Hello, I have a problem of routing traffic on two virtual interfaces I have created on my machine (CentOs6)
By using tunctl I created two virtual interfaces tap1 and tap2
let s imagine I gave them two different address
tap1: 10.1.1.1 net 255.255.255.0
tap2: 10.1.2.1 net 255.255.255.0
... (0 Replies)
Hi,
I have a rather strange IP question...
Here's my problem:
I have a Linux box (call it "turing") with 2 NICs.
One network interface (eth0) has an IP assigned, say 192.168.42.50.
The other interface (eth1) is up, but has no IP yet.
My question: is it possible to determine from... (3 Replies)
#!/bin/bash
for ((n=0 ; n < 254 ; n+=1))
do
ip=192.168.0.$n
if ping -c 1 -w 1 $ip > /dev/null 2> /dev/null >> /etc/logping.txt; then
echo "${ip} is up" # output up
# sintax >> /etc/logping.txt log with .txt format
else
echo "${ip} is down" # output... (4 Replies)
Hello, I installed FreeBSD 10.3 on AQEMU. I can't connect to internet in none
of the modes of "Default, User-Mode Networking" and "TUN/TAP Networking".
I am able to ping my host in the TAP networking mode (192.168.1.33 which is my
IP addr in guest), but getting 'no route to host' for any... (1 Reply)