System Administration

Creating a User Account

http://www.openbsd.org/faq/faq10.html#AddDelUser

$ sudo useradd -m -c "Arto Bendiken" -G staff,wheel arto
$ sudo passwd arto
$ sudo useradd -m -c "Buildbot slave" -u 999 buildbot

Changing the Login Shell

$ sudo usermod -s /usr/local/bin/bash arto

Adding sudo Privileges

$ sudo usermod -G wheel arto

$ cp -p /etc/sudoers{,.orig}
$ echo '#includedir /etc/sudoers.d' >> sudoers
$ mkdir -p /etc/sudoers.d && chmod 750 /etc/sudoers.d
$ echo '%wheel ALL=(ALL) NOPASSWD: SETENV: ALL' > /etc/sudoers.d/wheel
$ chmod 440 /etc/sudoers.d/wheel

System Information

Release Information

$ uname -a
OpenBSD openbsd.my.domain 5.6 GENERIC.MP#333 amd64

Platform Information

$ machine
amd64

$ machine -a
amd64

System Configuration

Package Management

Basic Configuration

$ export PKG_PATH="/mnt/cdrom/5.6/packages/`machine -a`/"
$ export PKG_PATH="ftp://ftp.eu.openbsd.org/pub/OpenBSD/5.6/packages/`machine -a`/"
$ export PKG_PATH="ftp://ftp.eu.openbsd.org/pub/OpenBSD/5.6/packages/amd64/"

$ sudo pkg_add pkglocatedb

Listing Packages

http://www.openbsd.org/faq/faq15.html#PkgList

$ pkg_info

Installing Packages

http://www.openbsd.org/faq/faq15.html#PkgInstall

$ sudo pkg_add joe

Upgrading Packages

http://www.openbsd.org/faq/faq15.html#PkgUpdate

$ sudo pkg_add -u
$ sudo pkg_add -u joe

Uninstalling Packages

http://www.openbsd.org/faq/faq15.html#PkgRemove

$ sudo pkg_delete joe

Package Installation

Core Utilities

$ sudo pkg_add bash
$ sudo pkg_add curl
$ sudo pkg_add wget
$ sudo pkg_add rsync
$ sudo pkg_add tree
$ sudo pkg_add git
$ sudo pkg_add screen--

Text Editors

$ sudo pkg_add joe
$ sudo pkg_add vim--no_x11
$ sudo pkg_add emacs--no_x11

Toolchain

$ sudo pkg_add gmake autoconf automake libtool
$ sudo pkg_add g++-4.9.0p0
$ sudo pkg_add llvm  # for clang
$ export AUTOCONF_VERSION=2.69 AUTOMAKE_VERSION=1.14

Python 2.7

$ sudo pkg_add py-pip
$ sudo ln -sf /usr/local/bin/pip-2.7 /usr/local/bin/pip

References