OpenBSD is a multi-platform 4.4BSD-based operating system with a focus on security.

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OpenBSD: Prioritizing empty ACKs

There is a wildly used example concerning PF and prioritising empty ACK packets, so that an an asynchronous connections' downstream does not lose performance, if the upstream is clogged up. The ...
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Xorg on OpenBSD: Mouse not working

I installed a fresh copy of OpenBSD in KVM (GNOME Boxes), booted the system up and tried to launch Xorg. According to the FAQ, Xorg should usually work fine without any configuration and it kinda ...
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OpenBSD Change tty background color

Is it possible to change the background color of one or all ttys without installing any additional packages? Using a config file, or environment variable? I tried changing the text mode resolution, ...
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52 views

Local server name no longer recongnized - OpenBSD

I've been scratching my head with this for a while and don't seem to be getting any closer to a solution at the system level. Brief note: A while back I set up an OpenBSD based server to run my ...
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1answer
41 views

OpenBSD pf Egress Filtering

I am attempting to build a simple pf.conf which includes NAT allowing traffic out of the network from all systems on a select series of ports. In my basic configuration I have an internal server that ...
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2answers
267 views

Why is the '-e' option missing from netcat-openbsd?

Why is the -e option missing from the netcat-openbsd package? There is a netcat-traditional package but it has many features from the OpenBSD package missing. I am running Linux Mint 16. Does anyone ...
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OpenBSD install various difficulties

Ok... Where do I start here. I have installed OpenBSD to be used as a dedicated firewall. After install I ran into several kernel traps that had me scratching my head. I finally disabled acpi on boot. ...
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1answer
169 views

OpenBSD 'device not configured' error in chroot-ed environment

I have asked this question on StackOverflow but given the comment there it seems like it fits here better. This is almost certainly a system configuration issue—you didn't set up the jail ...
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208 views

How can I get qemu's Ctrl+Alt keys working in -curses mode?

So here's the situation; I currently have qemu installed on an OpenBSD 5.3 snapshot. This is a console setup so I have to either run with -curses or -nographic. The problem here is that I'm having ...
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CARP doesn't go to backup mode

I have 2 OpenBSD computers set up as firewalls between my network and the Internet. On the local network, fw1 has IP 192.168.0.253, and fw2 has IP 192.168.0.254, and they share 192.168.0.1 using CARP. ...
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86 views

“bad magic number” during fresh OpenBSD installation to a USB stick

Trying to install OpenBSD 5.2 onto disk sd0 (2GB USB storage connected to the computer). Burned install52.iso as image to a CD, loaded it into CD drive, and booted off it. After selecting [W]hole ...
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2answers
415 views

install gcc 4.7 on openbsd, but still 4.2 after installation

I install gcc 4.7 on openbsd using pkg_add. after installation, I use 'gcc -v' to check, I found it is also gcc 4.2 ! how to upgrade gcc 4.2 to gcc 4.7 on openbsd? thank you!
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2answers
1k views

Installing OpenBSD on Mac Mini (core i5)

I have a brand new mac mini (core i5). I've yet to install OSX. I'd like to install OpenBSD from a USB drive. I do not want to dual boot, just run OpenBSD. I used a different machine to transfer the ...
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3answers
271 views

ipv6 find all hosts in a prefix

Using the ping6 command you can find the link-local address of ipv6 hosts out of an interface using: ping6 -I eth0 ff02::1 This will ping everything in the subnet and so you can see what is out ...
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3answers
2k views

Anytime I upload something, my internet slows down extremely. What can I do?

Title says it all. For a bit more info though: Basically, I have Time Warner cable internet. My speeds maintain a stable 2Mbit/s upload and 20Mbit/s download with average ping times around 30ms. ...
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1answer
128 views

Second network card appears fried. Why and how to prevent a third?

So I have an old computer functioning as an OpenBSD router for my home network. I had 3 network cards, one to wired home network, one to wireless network, and one to my modem. One day, pings magically ...
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2answers
177 views

Why are HTTP requests ignored?

I have the following network: · openbsd 5.0 web server (LAN) · windows 7 (LAN) · router provided by my ISP (LAN, WAN) · cell phone not conected to the network (WAN) UPDATE As LAN I mean a home ...
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2answers
4k views

How to forward X through two SSH tunnels?

I'm trying to run an X program on my home computer from my work computer. The basic setup is this: Arch Linux work computer -> OpenBSD SSH router(at home) -> Arch Linux home computer(with SSH) I've ...
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194 views

Hints on diagnosing performance issue in OpenBSD firewall

My OpenBSD 4.6 pf firewall has started having really bad performance in the past few weeks. I've isolated the firewall (as opposed to the WAN connection, switch, cable, etc.) as the problem, but need ...
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2answers
310 views

How do I match wireless card chipset to actual product names?

I'm wanting to buy a USB wireless adapter that works with OpenBSD. My problem: finding one that I know will work. There is a lot of documentation for what chipsets OpenBSD supports in this area, ...
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7answers
314 views

Is there a BSD equivalent to “!!”?

I often find myself issuing a command that I do not have the proper elevated privileges for. On Ubuntu I could use sudo !! This would issue the same command with sudo privileges. Is there an ...
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3answers
260 views

Notebook Operating System with extreme support cycles/security updates

I'm a long-time Apple User since 1992, have always felt at home there, but I've am currently looking to switch to an alternative Operating System. I've also been working with Unix machines since ...
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99 views

Option to get ntpd to run interactively

I am trying to set up an NTP client on OpenBSD. There is a way to run ntpd 'interactively' so that it tries to connect to our NTP server immediatley and doesn't return until it has updated the time or ...
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2answers
113 views

Keeping the wireless connected

I’m running OpenBSD on a computer which is connected via wireless to the network. It is a well supported NIC and I’ve had no problems with it from a hardware perspective. Unfortunately my wireless ...
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1answer
730 views

SSH X11 Forwarding and Graphical Application Loading

The Symptoms are as follows. If an application creates a new window, the window will take ages to load. The host machine has a leased line and I have 1.4 MB (Bytes not bits) up and downstream from ...
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3k views

Install OpenBSD from a USB flashdrive : “No OS” message on boot

I'm attempting to install OpenBSD on a fancy new home server equipment I just bought. I followed this guide to create a bootable USB flash drive from an OpenBSD VM I have on my laptop. But when I ...
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2answers
86 views

Which RAID setup to use for a build-computer?

I am wanting to setup a computer(actually multiple with the same setup) to build and compile programs. Security of the data is not important, and space for the most part is not important. (as in, 40G ...
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1answer
2k views

OpenVPN connects, but I can't see the network

I'm trying to setup openvpn in bridge mode. I've done this before on a openbsd router. Now I have an internal machine that is running openbsd. the client is a windows 7 laptop. The setups is as ...
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2answers
2k views

Is there a guide for setting up an OpenBSD desktop environment?

The default installation of OpenBSD is a little spartan. Is there a guide somewhere that shows how to set up a nicer desktop environment? I don't need a lot of bells and whistles but that window ...
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1answer
11k views

Console commands to change virtual ttys in Linux and OpenBSD

In Linux one presses Alt-F1, Alt-F2 etc to change virtual ttys. In OpenBSD one shall use Ctrl-Alt-F1 etc instead. My question is if there are console commands for these two operating systems that ...
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3answers
2k views

NetBSD, OpenBSD, *BSD and FreeBSD compared

I recall reading a comparison of NetBSD and FreeBSD a few years back, and in 2000 (okay many) it looked like NetBSD forked processes better, while FreeBSD threaded better, and so, for Apache 1 NetBSD ...