Berkeley Software Distribution is a UNIX-derived operating system developed at the University of California from 1977 through 1995.

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9
votes
5answers
3k views

Limiting network throughput of an already launched process ? (Linux/FreeBSD)

Is there any utility to limit the network throughput of a process after it has been launched? Simple example: you note that a user takes all your upload bandwidth using scp and you'd like to limit the ...
3
votes
8answers
647 views

Critical (Unixlike) Distros for Sysadmin Hopefuls to Have Experience With [closed]

I'm trying to learn to be a Unix/Linux Sysadmin, and am hoping to get some hands-on experience by setting up a few installs (VMs, old comps, and the like) at home and practicing administering them. I ...
12
votes
14answers
2k views

Why pay for UNIX?

I'm fairly new to Unicies. With the advent of GNU/Linux and BSDs, what are the reasons for companies to prefer AIX, Solaris and other commercial systems?
2
votes
3answers
986 views

FreeBSD crash course for a Debian administrator?

Can someone please post a quick FreeBSD administration crash course, targeted at a Debian administrator? The environment is a production web server. Some things I'd like to know: package ...
0
votes
2answers
1k views

NGINX, Rails & MySQL on Debian or FreeBSD - what's better security & performance-wise?

I'm about to set up a web-server which runs NGINX and MySQL. In FreeBSD I can totally separate the Webserver and the Database Server and run them in separate jails. In Debian I could run them in ...
0
votes
2answers
263 views

How will BSD fair in the future for servers? [closed]

How do you think the BSD's like FreeBSD will fair in the future for servers against various distributions of Linux? Considering many servers will be moved to a cloud like environment, how will this ...
0
votes
1answer
490 views

What are the alternatives to using allow.sysvipc in a jail running PostgreSQL in FreeBSD

This question is prompted by this one. I've set up a jail to run PostgreSQL but without allow.sysvipc when creating the jail (or setting the relevant rc.conf entries), the system call to shmget are ...
0
votes
1answer
827 views

Running PostgreSQL Inside a Jail Using FreeBSD

I'm using FreeBSD 8.0 and I've setup a jail, pgsql, to act as a database server. After installing, I've tried to run initdb but get the following error: $ /usr/local/pgsql/bin/initdb -D ...
2
votes
3answers
175 views

Operating system for optimal performance on x86 (virtualized)

What operating system would achieve the best performance on x86 from within Qemu or Virtualbox? I only need to use a handful of programs regularly: tmux, vi(m), curl, a package manager (mainly to ...
3
votes
2answers
1k views

How to tell if a freebsd jail is up to date?

I've set up a "Service Jail" in FreeBSD 8.0 according to the FreeBSD Handbook (http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/jails-application.html). After upgrading the host to the latest ...
14
votes
7answers
4k views

Good low power server/pc for firewall? [closed]

Does anyone know of a low power server/pc that have 2 NIC's, so it can be used for a (OpenBSD) firewall? Sandra
0
votes
2answers
663 views

Setting up a NFS Server on FreeBSD

I need to setup an NFS Server on FreeBSD, I have gone through a couple guides to try and get it running but can't quite get it going. I have the server running, but I seem to be having trouble ...
29
votes
4answers
6k views

Does anyone really understand how HFSC scheduling in Linux/BSD works?

I read the original SIGCOMM '97 PostScript paper about HFSC, it is very technically, but I understand the basic concept. Instead of giving a linear service curve (as with pretty much every other ...
5
votes
5answers
5k views

BSD - Remove non-ascii characters from all files in a directory recursively

I'm trying to migrate a bunch (300GB+) of files from a FAT32 drive to my freeNas ZFS filesystem but every command I throw at it (tar,pax,mv,cp) throws an 'invalid argument' when it encounters a ...
0
votes
3answers
1k views

Does PF support divert like IPFW?

I'm currently using IPFW on 3 dedicated firewall servers, and I would like to convert them to PF for some of its functionalities, but I need divert to work. Specifically I am teeing packets to a ...
2
votes
4answers
249 views

Looking for FTP server recommendations for BSD [closed]

I'm currently deciding on what ftp server we should use for an internal system that we have running FreeBSD 6.2. The requirements that we'll need are the following: must be able to handle SSL, as ...
2
votes
4answers
5k views

Installing and setting up SVN on FreeBSD Server

Firstly thank you to everyone who responded to my earlier question - http://stackoverflow.com/questions/1393827/setting-up-svn-web-based-services-vs-your-own-svn-server As much as I would prefer to ...
1
vote
4answers
586 views

Ideal Linux/BSD distribution to emulate Mac OS X

I've recently moved to a Mac OS X workstation. I am doing my best to stick to the command line, but am wary of corrupting my system. Is there a BSD distro that I can throw in a VM to experiment with? ...
2
votes
1answer
482 views

Safe to run firewall off single ethernet port?

This is for either Linux/BSD. I was just wondering if it was safe to run a firewall off a single ethernet port. The firewall machine would have a single ethernet port that is connected to a switch. ...
3
votes
1answer
2k views

What is the alternative to ls --time-style=full-iso in BSD?

command in Linux $ ls -lt --time-style=full-iso output ... -rw-r--r-- 1 mduda mduda 1855 2009-08-26 13:07:55.000000000 +0200 screen-configurations.xml drwxr-xr-x 2 mduda mduda 4096 ...
1
vote
2answers
2k views

Using Free/Open BSD + pf as a DDoS filter [duplicate]

Is using Free/Open BSD + pf a workable option for filtering DDoS? Which of the two would perform better under heavy load? (SYN flood maxing a 1 gbit pipe) Is this even an option to consider, or is a ...
3
votes
2answers
5k views

How to get windows xp to authenticate against kerberos or heimdal

How do you get windows XP as a client to authenticate against kerberos or heimdal (where the OS is either Ubuntu, FreeBSD or OpenBSD)
0
votes
1answer
176 views

How to check who is logged in on jail?

Is there an easy way to check who is logged in on any jail?
0
votes
3answers
1k views

Gateway status checking methods on linux/bsd [closed]

I'd like to know if there's any reliable tools I could use (integrate with my network config) to monitor the status of the gateway and switch the default gw when it detects that the main gateway is ...
6
votes
3answers
4k views

Fast way of knowing real directory size on linux/bsd

What is the fastest way of computing real directory size? I somehow catch myself needing that a lot. Simply doing: # du -hs /dir Is too slow. Is there any service I could run which would ...
0
votes
5answers
1k views

How can I lauch a GNU screen from jailshell (no pty) [closed]

I have my personal stuff hosted with a company that uses cpanel. It seems that a "feature" of cpanel is that the hosting company can use their "jailshell" when granting (terminal, not goofy AJAX ...
7
votes
5answers
6k views

FreeBSD jails vs virtualization performance

I'll soon buy myself a nice server (something like the quad-cpu HP DL585) for personal use (home related stuff, data-mining projects, web server and some cron jobs), and I wonder how to separate all ...
1
vote
3answers
1k views

What's the shortest command to find a volume's BSD device name ( /dev/disk*s* )?

What's the easiest way to find out that, for example, /Volumes/Foo lives in /dev/disk0s2 ? EDIT: mount is probably a more semantically satisfying answer, but it doesn't get much shorter than df
1
vote
4answers
2k views

How do forward/reverse lookups differ between “nslookup,” “dig,” and “host”?

How are "nslookup," "dig," and "host" different (in terms of looking up hostnames or IP addresses)? Which authorities are queried? I'm trying to figure out when I should use one over the others.
10
votes
5answers
3k views

Why do you have to create a directory before you can mount a share?

Why do you have to create a directory before you can mount a share to it? Eg: I've never understood why mkdir is needed here: mkdir /Volumes/foo mount -t afp afp://username:pass@pretendco.com/foo ...