I have standalone Suse 10 SP3 that when I run
but when I run host command
I would like to get the IP when I issue
and the name when
in /etc/hosts I have
in /etc/HOSTNAME
I don't know what to put in /etc/resolv.conf
any idea how to make to resolve to itself?
thanks a lot
Last edited by karlochacon; 02-17-2011 at 12:24 PM..
I will remote a connection to a Unix server and launch a command on this server. This commnand requires me to set a view in Clearcase to see the vob element. How do I set a view an run a command with ssh with the syntax: ssh host command? (3 Replies)
I have been slowly working towards getting a shell window in Cygwin (and/or Gnome and/or KDE) to start up and display the last time it was opened (or sourced) similarly to how the OS X Terminal does so. As close as I've been able to get so far is the 'who' command, but I can't seem to puzzle out... (2 Replies)
How do i get only the IP part from a host call.
For example in my script i put
#!/bin/sh -
#
# @(#)daily.local Tim Golding
#
# Back up
server_ip=`host roadhaulage.com`
echo $server_ip
This echos the following
roadhaulage.com has address 86.54.98.194 roadhaulage.com... (5 Replies)
Hi,
My script needs to check whether the remote host is up or not.
If it is up i need to start few servers in that host or else just a notification should be sent that the remote host is down?
Could someone help me out in this?
Regards
Arun (4 Replies)
Hi,
I have a weird problem.
when ever I do ping command like for example
ping unix.comI get the following message:
# ping unix.com
ping: unknown host unix.com
but when I use host the computer is able to know the host.
# host unix.com
unix.com has address 81.17.242.186
unix.com mail is... (2 Replies)
How should i make the following code working
#!/bin/bash
INPUTFILE="test.txt"
while read STRING; do
IP=`host -t A $STRING | awk '{print $NF}'`
HOSTNAME=`ssh -oPasswordAuthentication=no -oStrictHostKeyChecking=no $IP "hostname"`
echo $HOSTNAME > out.txt
done < $INPUTFILE
At this moment while... (3 Replies)
I have below command to check for error logs from last 24 hours from the file : /var/log/messages/ The command is working fine on the local host.
sudo awk -F - -vDT="$(date --date="24 hours ago" "+%b %_d %H:%M:%S")" ' DT < $1' /var/log/messages | egrep -i "error|fail"
I want to run the... (8 Replies)
Discussion started by: rahul2662
8 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)