I have Ubuntu linux Os with two eth cards. I can easily delete def gatewayg. But I can't add new one..
When I run route-n:
Code:
alperen@alperen-System-Product-Name:~$ route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.2.0 0.0.0.0 255.255.255.0 U 1 0 0 eth1
10.20.0.0 0.0.0.0 255.255.0.0 U 1 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 eth1
0.0.0.0 10.20.0.1 0.0.0.0 UG 0 0 0 eth0
I delete the default gw using
Code:
alperen@alperen-System-Product-Name:~$ sudo route del default gw 10.20.0.1
alperen@alperen-System-Product-Name:~$ route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.2.0 0.0.0.0 255.255.255.0 U 1 0 0 eth1
10.20.0.0 0.0.0.0 255.255.0.0 U 1 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 eth1
Now I try to add static gateway using:
Code:
alperen@alperen-System-Product-Name:~$ sudo route add default gw 169.10.10.100
SIOCADDRT: No such process
alperen@alperen-System-Product-Name:~$ sudo route add default gw 169.10.10.100
SIOCADDRT: No such process
hey there
i kinda have a small/big problem. i have created a 'small' version of a shell that only accepts ls comamnds. my problem is that when i compiled the program and got it to work, i deleted the .c file from which the shell was created. but now, i would like to do some more work on the... (2 Replies)
Hi there I currently use a line in a script
ndate=$(date +"%d/%m/%Y")
This obviously returns the date in a format i have chosen. However, I need to come up with a solution for weekends and as such need a way of returning todays date minus two days in the same format (24/11/2004)
so for... (3 Replies)
I have a shell script that carries out an extraction process as follows:
For a given input file dummy which looks like the following:
a.txt
a 1
a 2
xnzbcnzbxcbzxncbmnzxbcmzx
546
456
45
5
6
56
a 3
b.txt
b1
b2 (1 Reply)
Hello all expert network administrator, i truly new to networking. Please help me in this problem. /etc/hostname.rl1(Wired Internal interface) inet 10.0.0.1 255.255.255.0 none
/etc/hostname.ral0 : inet 10.0.1.1 255.255.255.0 and others option as well.
/etc/dhcpd.conf : share-network local {... (82 Replies)
I have a file tmp.out with contents:
2008-08-09 05:11:01
2008-08-09 08:52:59
2008-08-11 12:08:34
2008-08-11 12:15:40
I want the output to be:
3|0|1|71|2008-08-09 05:11:01|2008-08-30 11:19:28
4|0|1|71|2008-08-09 08:52:59|2008-08-30 11:19:28
5|0|1|71|2008-08-11 12:08:34|2008-08-30 11:19:28... (6 Replies)
hi folks,
i have a horstbox-router with the following configuration.
it has 4 ethernet ports from wich one (wan0) is configured as an external modem via dhcp. at this port/interface(wan0) it is connected with my home network (other switch).
this configuration results in the following... (14 Replies)
hello, i am a newbie and i really need your help
i have an centos 6.5 and i wonder if i can create a list with random 4 letters :
gdjf
ornc
tyrn
jfdn
nofd
etc....
if it can be done , i will really apreciate your help ! THANKS !!!
---------- Post updated at 07:16 AM... (10 Replies)
Dear friends
I use RedHat 6.5, which sets the gateway in the configuration file / etc / sysconfig / network as GATEWAY = 192.168.1.26, and the gateway in the configuration file / etc / sysconfig / network-scripts / ifcfg-eth11 as GATEWAY = 192.168.1.256. The two gateways are different.... (6 Replies)
Discussion started by: tanpeng
6 Replies
LEARN ABOUT DEBIAN
bup-margin
bup-margin(1) General Commands Manual bup-margin(1)NAME
bup-margin - figure out your deduplication safety margin
SYNOPSIS
bup margin [options...]
DESCRIPTION
bup margin iterates through all objects in your bup repository, calculating the largest number of prefix bits shared between any two
entries. This number, n, identifies the longest subset of SHA-1 you could use and still encounter a collision between your object ids.
For example, one system that was tested had a collection of 11 million objects (70 GB), and bup margin returned 45. That means a 46-bit
hash would be sufficient to avoid all collisions among that set of objects; each object in that repository could be uniquely identified by
its first 46 bits.
The number of bits needed seems to increase by about 1 or 2 for every doubling of the number of objects. Since SHA-1 hashes have 160 bits,
that leaves 115 bits of margin. Of course, because SHA-1 hashes are essentially random, it's theoretically possible to use many more bits
with far fewer objects.
If you're paranoid about the possibility of SHA-1 collisions, you can monitor your repository by running bup margin occasionally to see if
you're getting dangerously close to 160 bits.
OPTIONS --predict
Guess the offset into each index file where a particular object will appear, and report the maximum deviation of the correct answer
from the guess. This is potentially useful for tuning an interpolation search algorithm.
--ignore-midx
don't use .midx files, use only .idx files. This is only really useful when used with --predict.
EXAMPLE
$ bup margin
Reading indexes: 100.00% (1612581/1612581), done.
40
40 matching prefix bits
1.94 bits per doubling
120 bits (61.86 doublings) remaining
4.19338e+18 times larger is possible
Everyone on earth could have 625878182 data sets
like yours, all in one repository, and we would
expect 1 object collision.
$ bup margin --predict
PackIdxList: using 1 index.
Reading indexes: 100.00% (1612581/1612581), done.
915 of 1612581 (0.057%)
SEE ALSO bup-midx(1), bup-save(1)BUP
Part of the bup(1) suite.
AUTHORS
Avery Pennarun <apenwarr@gmail.com>.
Bup unknown-bup-margin(1)
09-08-2011
