Questions tagged [bsd]
Berkeley Software Distribution is a UNIX-derived operating system developed at the University of California from 1977 through 1995.
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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 ...
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What is good about the BSDs?
I've used Ubuntu on and off since Warty Warthog. I was thinking about installing Jaunty soon; but I noticed that over the weekend NetBSD 5.0, Dragonfly BSD 2.2.1, OpenBSD 4.5, and FreeBSD 7.2 have all ...
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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 format ...
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What is the OS X / BSD equivalent of the GNU "ps auxf" command? [closed]
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?
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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 "jail"....
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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
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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?
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Unix Legendry (and other *nix as well)
This is the twin to this question.
Most obscure/upvoted answer will get the answer vote!
Most Unix and Unix-like systems have a "traditional history" that is passed down with each generation, so ...
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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:[email protected]/foo /...
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Linux / BSD "quickly" wipe a USB drive?
I'm clearing a drive with dd. It's a USB device and 120GB and it's taking a very long time:
dd if=/dev/zero of=/dev/da0 bs=1M status=progress
I have tried messing with the block size (smaller and ...
- 603
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BSD nc (netcat) does not terminate on EOF
Host A:
tar cf - stuff | dd | nc -N -l 12987
Host B:
nc a.example.com 12987 | dd | tar tf -
On host A dd prints its summary after tar completes. Thus it is clear, that tar closes the pipe/file -...
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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 ...
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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 2009-08-26 ...
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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 ...
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Should I build my own or buy a cheap NAS? [closed]
I've looked at this question and gotten some ideas from it. Assume I want something that runs quietly with raid support. I see the choices as being buy a home NAS solution most of which appear to be $...
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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 ...
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Install Java 9, 10, 11, or 12 on FreeBSD 11.1
When I look to my up-to-date Ports collection:
cd /usr/ports/java && ls -d openjdk*
… I see only versions 6, 7, and 8 of Java in the OpenJDK releases:
openjdk6 openjdk6-jre openjdk7 ...
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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.
...
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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 non-...
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Resize zfs pool
We are using Digital Oceans block storage feature on our FreeBSD system.
When we add a new block storage we get:
da0 at vtscsi0 bus 0 scbus0 target 0 lun 1
da0: <DO Volume 1.5.> Fixed Direct ...
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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' ...
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Symbolic Links and Multiple Mount Points
I am sure this may seem like a simple question, but I cannot seem to ask Google the correct question for the life of me. In short, I am having trouble understanding how symbolic links function when a ...
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Using bash shell when logging into FreeBSD ssh
I'm searching a way to be sure my commands are executed by bash on some FreeBSD 11 machines that use csh as default shell.
The following is my code that works on Linux CentOS / Debian / MacOS X / ...
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Data recovery options for unix file systems [closed]
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 ...
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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 ...
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Installing and setting up SVN on FreeBSD Server
Firstly thank you to everyone who responded to my earlier question - https://stackoverflow.com/questions/1393827/setting-up-svn-web-based-services-vs-your-own-svn-server
As much as I would prefer to ...
roosal
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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 ...
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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 ...
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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 ...
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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 ...
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Force ZFS to ignore checksum errors without removing the offending disk
EDIT: (see the end of this question) after more digging this appears to be a system USB issue and not ZFS that's causing the drives to be kicked. I'll leave this question up for posterity, because I'...
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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 ...
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What's the best ThinkPad regarding Linux support? [closed]
Currently Mac user but will switch to ThinkPad soon, with Arch Linux, Debian or some BSD loaded on it.
Everything except T and SL series is out of the consideration for me. I am leaning towards T500. ...
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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 ...
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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)
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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 ...
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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 ...
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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 ...
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FreeBSD Jail own network stack with vimage
I want to throw all services from the host system and put them in jails.
Unfortunatly this doesn't work for file sharing (e.g. nfsd) because the jails don't have there own network stack by default. I ...
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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 management ...
bsdnoob
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3
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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 ...
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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 all ...
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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 ...
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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 ...
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Layer 3 routing based on HTTP packet content
I'm running a HTTP proxy service and want to route traffic to various Layer 3 TUNs based on the contents of HTTP packets (e.g. HTTP headers).
I'm using BSD and Linux to do this but it doesn't look ...
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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 ...
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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 ...
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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 ...
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How do you expand /var in pfsense when you run it in memory?
I have a pfsense box running 32GBs of RAM. I enabled /var and other directories to be in RAM due to have so much space and wanted to improve performance.
How do you alter and increase the size of /...
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2
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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 ...
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