613 reputation
29
bio website f-hauri.ch
location Switzerland
age 49
visits member for 1 year, 10 months
seen Aug 21 at 19:46

I'm an old open-source independent hacker,

concerned about concepts of ethical hacking, teaching and sharing.

I like to play with shell, perl, lisp (sometime), sed and lot of other languages/environments.

Co-system administrator in several configurations, after various SMEs, I like to sometimes take time to focus on methods that I can improve or re-create (for example to change the level of abstraction).

In this, surfing on differents StackExchange's sites is a good way to boost my inspiration!


Nov
9
comment OpenVPN bridge network from routed clients
This seem to be a simple routing problem. You have to inform each host about which one act as a gateway or use nat...
Nov
9
comment OpenVPN bridge network from routed clients
A little drawing of your network may help!
Nov
9
comment ping incorrectly pinging 127.0.0.1
Did you play with /etc/hosts? What's in your /etc/resolv.conf? Did you use a private DNS?
Nov
9
comment How to start Rails from a shell script on Debian?
What's answer of update-rc.d when you run the command?
Aug
2
comment Pipe stderr and stdout to different commands (not just to files)
Take a look at this demonstration: stackoverflow.com/a/16283739/1765658 or this other meaning sample: unix.stackexchange.com/a/84012/27653
Jul
30
comment Transfer a 30GB tar file from one remote server to another - restrained by disk space
... some interesting way (filters) to use (or not) to be creative: nc òr openssl, sed, gpg, uuencode and mail (with care;) , enscript + lpr + [avian carriers] (fr.wikipedia.org/wiki/IP_over_Avian_Carriers) + scan + ocr... But there are even more...
Jul
30
comment Transfer a 30GB tar file from one remote server to another - restrained by disk space
Yes, you're right but, not knowing about this kind of option could have (same) border effect too. Best of all: know what you're doing and... rtfm;-)
Jul
29
comment LVM system space is not consistent
If I'm right please valid the answer.
Jul
28
comment rsync connection closing right around an hour
By default, ssh don't run as ControMaster, so you may just have to run ssh -M destHost ping -n localhost before running rsync in normal way. Not sure, but this may work!
Jul
28
comment Transfer a 30GB tar file from one remote server to another - restrained by disk space
You may have to use --numeric-owner option before making tarball to ensure owner and groups won't change. ssh ouser@oserver tar -zcplC /src_path --numeric-owner . | tar -zxpC /dst_path
Jul
28
comment Transfer a 30GB tar file from one remote server to another - restrained by disk space
You may have to use --numeric-ids option to ensure owner and groups won't change
Jul
27
comment What's a good way to handle multiple devices with the same MAC address on one network?
... but you have to manualy configure each host's IP!?
Jul
27
comment Transfer a 30GB tar file from one remote server to another - restrained by disk space
Please edit answer instead of prolongating comments: You may make this more readable ;-)
Jul
27
comment Debian Wheezy - apt-get upgrade fault
Did you try apt-get -f install
Jul
27
comment RAID 1E with ZFS
I was wrong: following this schema, 27 -> 9 -> 3 -> =4.5 x 1 disk. It was a joke as this is clearly overkill (with this, each block of data would exist on 6 different physical disk): There are redundant/concurrent technologies: hw raid, soft raid and Zfs...
Jul
25
comment RAID 1E with ZFS
Yes! With 27 physical disk, you may build 9 raid 1E using HW-Raid controlers, than you could build 3 Linux MD Raid-1e, useable as 3 physical devices for ZFS, from where you may use copies=2 to be able to use 1.5x size of 1 disk... data would be redundants!
Jul
23
comment Clean way to write complex multi-line string to a variable
Yes, bash 4 was very new when this question was asked.
Jul
22
comment Is there any logs in Linux which tells if some port has been denied
I use tcpdump -ani ethX for showing what's happen on interface ethX
Jul
19
comment What useful things can one add to one's .bashrc?
That's a nice thread, but for superuser.com
Jul
18
comment Possible to build a RAID 1 with only one drive with LSI 9260-4i?
Under Linux MD, you could build a degraded array than repair them lather: mdadm --create md0 --level=1 --raid-devices=2 /dev/sda1 "missing". But I agree with @Adrian, this has nothing to do there...