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

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27
votes
4answers
5k 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 ...
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
12
votes
14answers
1k 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?
9
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 ...
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 ...
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 ...
6
votes
3answers
3k 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 ...
6
votes
4answers
1k views

Difference between chroot and jail

I read this tutorial - https://help.ubuntu.com/community/BasicChroot - and what I understood is that, chroot is the process of changing the / while the new restricted environment created is the ...
5
votes
2answers
363 views

Which BSD best suited to run as VMware guest?

I want to deploy a VM to serve DNS and files (via NFS) to other *nix systems in my infrastructure. Due to reasons beyond my control, I need a very light OS, so I naturally choose the *BSD family. ...
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 ...
4
votes
4answers
3k views

What is the OS X / BSD equivalent of the GNU “ps auxf” command?

In the GNU utils, ps auxf gives the process list with forest (tree). Is there a equivalent for this command at BSD / OS X systems?
4
votes
1answer
141 views

How do I securly update a *BSD system?

Security is a major concern. Every major Linux distribution uses signed packages. But the FreeBSD systems in the office downloading unsigned packages/ports via FTP. Is there a solution that would ...
4
votes
3answers
245 views

Data recovery options for unix file systems

What popular and tried data recovery options are there? I know of these (none of which have GUIs afaik): foremost - Forensics application to recover data scalpel - A Frugal, High Performance File ...
4
votes
1answer
326 views

BSD 50% interrupt utilization in irq0/clock

On OpenBSD on an Atom 450, with HPET configured in the BIOS and not, also with Hyperthreading/ACPI on-off, nothing seems to make a difference. Here's my vmstat -iz # vmstat 2 procs memory ...
3
votes
8answers
584 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 ...
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)
3
votes
2answers
2k views

How can I port forward over a VPN NAT?

I have a multi-site VPN currently running with pfSense boxes and currently using OpenVPN. However I can change the OS and VPN type if need be. The main router has a 10.13.0.0/16 subnet and a series ...
3
votes
2answers
248 views

Altq/Pf trouble on OpenBSD

I'm having some trouble with pf/altq on OpenBSD but as I'm new to it I'm not sure if its because I'm misunderstanding how to use anchors, or if something is wrong with my system. I'm trying to add ...
3
votes
2answers
2k views

FreeBSD 10 won't boot to ZFS root after power failure

While installing new hardware today, I involuntarily disconnected the power to one of our servers. This server is running FreeBSD 10 with Root-on-ZFS as offered by the installer. It has a total of 36 ...
3
votes
1answer
354 views

Resource consumption of FreeBSD's jails

Just for curiosity. An example machine: an dedicated amd64 server with the last stable version of FreeBSD and UFS for the partitions. How much resources consume FreeBSD for each empty jail? I mean, I ...
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 ...
3
votes
2answers
2k views

netcat -e: the GAPING_SECURITY_HOLE

Why does the BSD version 1.10 of nc disable the -e option found in other, so-called insecure distributions when the same dangerous feature could be trivially achieved as follows even with the 'secure' ...
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 ...
2
votes
1answer
892 views

What are main differences between Linux and FreeBSD system from sysadmin point of view? [closed]

What are main differences between Linux and FreeBSD system from sysadmin point of view ? What specifically and significantly differs Linux from BSD (memory/resources/users management, other ...
2
votes
3answers
941 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 ...
2
votes
3answers
575 views

VMWare vSphere ESXi vs Microsoft Hyper-V Server 2012 in a mixed environment [closed]

I'm considering some virtualization technologies in our University. And I really don't know which of them to use. VMWare seem to be the default choice, but with the free version of vSphere 5.1 (atual ...
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 ...
2
votes
4answers
230 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
3answers
232 views

Is it ever good to share a userid?

On Un*x, Is it ever a good idea to have one userid that many different people log into when they do stuff? Often I'm installing software or something on a Linux or BSD system. I've developed software ...
2
votes
2answers
144 views

How to get a kernel panic count [closed]

Is there any way to check the number of kernel panic that happened on a system ? If not, any idea on how to do make this new functionality ? I would like to hear about an answer for most Unix-like ...
2
votes
1answer
548 views

How can the root password on FreeBSD 9.1 be changed for the system for the purposes of root logins?

I've never encountered this before when using FreeBSD, but I recently got a new BSD VPS, and when I logged in as a wheel user and su to root, I used "passwd" to change the root password, but this only ...
2
votes
2answers
2k views

Can't boot FreeBSD 10 iso by PXE

I'm trying to boot FreeBSD 10 bootonly iso from with pxelinux and tftp, unfortunately the following error appears during freebsd boot: cd9660 :/dev/iso9660 error :/dev/iso9660/FREEBSD_INSTALL ...
2
votes
3answers
174 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 ...
2
votes
1answer
206 views

Should I create ZFS zpools with whole disks or partitions?

I am making zpools on FreeBSD machine. While creating zpools i observe these two cases:- If i take raw disks and create zpool then i am able to form zpools and they are working perfectly. If i ...
2
votes
1answer
529 views

nslookup fails inside freebsd jail

I posted on the freebsd forums. I've been trying all night and I've made some progress but still I can't connect to the internet from my freebsd jail. Please just give me a hint here. I get the ...
2
votes
3answers
70 views

Networking OSX BSD Book Commands [closed]

I am looking for a good source (book, online) of networking on mac osx or linux. What commands, how to connect, send data, security (checking for intruders) etc.. Setup server. Thanks for the time.. ...
2
votes
1answer
451 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. ...
2
votes
1answer
277 views

pfSense memory reporting

I have a box onto which I just installed pfSense 2.1. The box has 16GB of RAM and is a quad-core processor (yeah, we're planning on doing some serious traffic and using a proxy filter with a lot of ...
2
votes
3answers
542 views

Shared authentication across FreeBSD Jails

I am using FreeBSD with ZFS to run several jails. For jail management I'm using ezjail, and I have a template jail which I use for provisioning. I want to share passwd, groups, and authentication ...
2
votes
1answer
786 views

How to configure DNSMasq to allow wildcards for dns entries from DHCP?

I'm using PFSenses 2.0 in our development environment. I'm depending on the DNS Forwarder to add DNS entries for new DHCP leases. This is working well, though I need to add support for wildcards to ...
2
votes
1answer
243 views

How do I make Dragonfly BSD boot immediately, without waiting for user input?

I have installed Dragonfly BSD, and currently I need to press F1 and 1 to get it to boot. It's in a KVM VM so I'd like it to boot automatically when I boot my real machine. I know how to get KVM to ...
2
votes
1answer
410 views

Openbsd init script for ssh VPN tunnel

I have a server hosting SSH tunnels and Openbsd 4.5 clients connecting to it. Things work just fine but I am in the need of automating the connection from the client to the server. So that if the ...
1
vote
3answers
864 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.
1
vote
2answers
5k views

Block IP addresses with ipfw

I'm a total noob to ipfw so my apologies in advance if my questions are basic, but I've not found any resources for it that help with the gap between using the GUI and knowing the commandline ipfw ...
1
vote
2answers
594 views

bonding NICs w/o switch

(This may not be possible, but I thought I'd ask just in case it is, as it will save a considerable amount of cash.) I'm building cluster of sorts that has one shared storage unit and two computing ...
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 ...
1
vote
1answer
511 views

OpenBSD Apache version 1.3.29? [closed]

I recently installed OpenBSD and went to check the version of Apache HTTPD and when I run httpd -v it tells me the version is Apache/1.3.29 (Unix). Surely this can't be right? I am using the latest ...
1
vote
1answer
393 views

FreeBSD Jail with Ruby multiple web deployment

I am looking to offer a free deployment system for ruby web applications (based on rack and not ruby on rails) so essentially I will allow users to upload a file with their app and the app will show ...
1
vote
4answers
580 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? ...