Ok here is my problem i do not know the command to load a driver for my network card in Ted hat linux 6.0 could sombody give me a hand. and if there is anyone that has a list of commands for red hat that would be great also (2 Replies)
Hello guys, I got overzealous (I Think).
I got the book Linux Unleashed that comes with the Slackware 3.0 Version of Linux for $2.00.I also have Red Hat Linux 7.2 (No book, just the OS).What I wanted to know was,other than the bells and whistles of Red Hat is there any significant difference... (2 Replies)
I have a PC running XP, and I have a PC that dual boots W2K and Red Hat Linux 7.3.
I have the two connected via crossover cable, and the two can access each other when both are running windows.
If I were to boot up Linux, can my XP PC telnet to the Linux PC? Any pointers or websites to... (3 Replies)
Hello there!
Will anybody please tell me some good links to online eBooks on Red Hat Linux 9 user experiences and the like. If the books are in PDF Format, it will be nice to read.
Thanks for cooperation in advance.
Enjoy using open source and breathe freely!
JAM (5 Replies)
My assignment is to use C++ to generate a table of values for the U.S. standard atmosphere, when data at sea level are given, which i have done perfectly. Now, i am attempting to create a matlab script to read and plot the data.
I forgot to put my table of data on my thumb drive yesterday, and... (4 Replies)
I have a requirement to copy the changed file on CIFS share mounted on Red Hat Linux to a remote FTP/SFTP server.
I tried inotify-tools, but this didn't track the modified files.
Has anyone tried incron or any other suggestion? (1 Reply)
I just started a new semester and I started my UNIX class yesterday. I've already decided to use python along with my learning process but what I really want to use with it is Kali as my UNIX/Linux platform to learn off of since I already wanted to learn Cyber Sec. anyways. I just wanted to know if... (12 Replies)
Hi,
I am facing a typical scenario for AWK command .
In HP- UNIX is behave as expected but in red hat linux same awk code is not give the same result.
The below code is for convert the fixed width file to pipe delimiter file in HP-unix server.
awk code:
#!/bin/awk -f
NR!=1... (11 Replies)
Discussion started by: brij_abhi
11 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)