293 reputation
28
bio website
location Germany
age 33
visits member for 2 years, 7 months
seen Jul 7 at 7:34

Jan
30
asked How can I decipher this HTTP PHP-request?
Jan
23
revised create home directories after create users
deluser might also be a admin friendly option
Jan
22
awarded  Nice Answer
Dec
12
revised create home directories after create users
deleted 4 characters in body
Sep
27
awarded  Commentator
Sep
27
comment create home directories after create users
Personally I don't like the 755 chmod, as it allows users to spy into other users home's. I think each user should explicitly grant access to others. As public_html needs at least x bit set, I would recommend chmod 0711 on each home, public_html and similar directories as default.
Aug
9
awarded  Necromancer
May
21
awarded  Caucus
May
17
awarded  Yearling
May
14
accepted Is it possible to flash IPMI controller firmware from remote?
Mar
25
comment What limits the performance of scp?
The answer from JooMing worked for me fabulous, but -C option for compression made it slower (21MB/s instead of 112MB/s). So please take care with -C.
Dec
17
comment Can a virtualized machine have the CPU and RAM resources of multiple underlying physical machines?
Caution: Even it is possible to combine multiple hosts to one big host, the main memory is physically distributed! This means that memory transfers must be virtualized over network. Even if you have a high-end network like Infiniband, you will not have by far 16GB of RAM as if you would have on one host with 16GB. Same applys to GHz: You will end up having multiple cores but not 6.8 GHz. And this is very very application specific: Your application might scale good with multiple cores and might not use more than 4GB of RAM, (but then why the big machine?), mostly this is not the case!
Dec
12
comment How can one send commands to the “inner” ssh session?
FYI: Some keyboard layouts may require twice hitting the '~' key to print one '~' character. I often use screen so when a ssh connection is lost I can simply start another shell killing this session.
Nov
7
accepted How to log access to public_html dir, served by apache?
Nov
7
asked How to log access to public_html dir, served by apache?
Oct
26
asked How to execute a command on multiple hosts using IPv6 only?
Aug
24
comment Check if directory exists using home character (~) in bash fails
+1 for simplicity.
Aug
10
asked Is it possible to flash IPMI controller firmware from remote?
May
25
answered How do I prevent accidental rm -rf /*?
May
12
revised create home directories after create users
added 67 characters in body