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Questions tagged [unix]

Unix is a multitasking, multi-user computer operating system originally developed in 1969 by a group of AT&T employees at Bell Labs.

Excerpt from the Wikipedia page

Unix was originally written in assembly but has since been rewritten in C. It has been branched many times both commercially and open source. One popular variant is the BSD variant which originated from the University of California, Berkeley. It also gave rise to Linux.

Notable variants

  • Silicon Graphics - Irix
  • IBM - AIX
  • Sun Microsystems - Solaris
  • Hewlett Packard - HP-UX

Unix is officially trademarked as UNIX.

Unix on Wikipedia

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two servers cannot communicate

Two servers (unfortunately one web server one mysql server) were fine until last night. Now, i can't ping, ssh, or open any lines between the two servers. Any other machine can get to them just fine, but those two are blocked somehow. I've…
TimT
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Dos find command?

Are there any utility find commands that you can download and use in DOS which match the UNIX find command?
Marcus Leon
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Change Command Prompt Hostname

How can I change the hostname that is in the command prompt. I have [root@domU-12-31-19-93-37-71 ~]# ls Can I change to [root@jasonvaritek ~]# ls
JiminyCricket
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Solaris SMF functionality in any open source or Linux kernel packages?

I use Solaris SMF to monitor, report, and automatically restart processes after a crash on Solaris systems. Is there anything similar either as portable open source or in the Linux kernel? For those not familiar with SMF, this is the functionality…
JOTN
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Cron Job not Running

I can run this command from CLI with not problem on the fedora box but not from a Cron: /usr/bin/php /var/www/support_web/api/cron.php This is the cron output: Output from command /usr/bin/php /var/www/support_web/api/cron.php .. 77 File has…
codex73
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i cannot send mail on unix aix?

i try to send e-mail but the following error appear :- bbb@ccc.com... User unknown /dead.letter... Saved message in /dead.letter how i can solve this error ????
Mohammad AL-Rawabdeh
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UNIX-Security Advise

I want to build a quite secure UNIX-Server. Mechanisms I already implemented: SNORT + fwsnort for banning psad to block network-scanning attempts Portknocking to start+open SSH (key-based login - no password) hourly update of IP-Tables-Rules from a…
Phoibe
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How to debug silent hang on shutdown of Solaris 10?

We're experiencing a mysterious hang on shutdown of a newly-imaged Oracle/Sun Solaris 10 SPARC box. It is repeatable (in the same spot ... from what we can tell). We let it try to work itself out multiple times for 5-10 minutes and it never…
jblaine
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java for freebsd

I am trying to install java on freebsd 7.X and i have done following thing so far download the tar file from this link and store the file in cd /usr/ports/distfiles/ after that i run cd /usr/ports/java/diablo-jre16 **or** cd…
rawman
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Bash scripting: Crossplatform check is python package installed in the system?

For example I want to check does py-sqlite3 available..? One of the methods would to call that command with some minimum python script and catch error? I want to make check for any linux distro and unix system (at least bsd) What could be the best…
holms
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Understanding Unix Permissions (w/ ACL)

I am trying to set permissions on my server properly. Currently I have a number of directories and files chmod'd at 0777 -- but I am not comfortable with it being this way. So at the advice of a serverfault specialist, I had my hosting provider…
H. Ferrence
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Discrepancies in `groups` output

why is it that when I execute groups the output doesn't contain the adm group, while the output of groups $USER has it? The user is supposed to be in that group.
dpq
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Copy File Contiguously to Disk from OSX/Unix/Linux to FAT32 FS?

So the Sysinternals guys have that cool contig.exe utility that allows me ensure a file is contiguous. I need to copy overs ISO files to a FAT32 USB flash key. Grub4DOS requires the files be continuous, but I do not have Windows access at the…
songei2f
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Web-based *nix shell

is there any solution like LogmeIn consisting on a small client to install upon a *nix machine and hence being able to use its shell from the browser bypassing proxies because it all will work on :80? Thanks
pistacchio
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How do I change my PYTHONPATH , after I just installed a python virtualenv?

So I created a virutal environment. I also sourced it. Then I installed some packages. Now, I want to change my PYTHONPATH. How?
Alex
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