DragonFly BSD is a UNIX-like operating system, forked from FreeBSD 4.8 in 2003 by Matthew Dillon, diverges from other BSDs with unique features like the HAMMER2 filesystem, virtual kernels, advanced SMP optimization, and SSD caching to enhance performance and efficiency.
Get an overview of DragonFlyBSD, starting with version 5.8.3:
ISO: https://mirror-master.dragonflybsd.org/iso-images/dfly-x86_64-5.8.3_REL.iso.bz2 (255 MB)
Installer: installer, a Bourne shell script, the source code is available at https://gitweb.dragonflybsd.org/dragonfly.git/blob/HEAD:/usr.sbin/installer/installer/installer.sh
Default install
Disk Layout: ad0, auto (Hammer2)
Hostname: dfbsd.local
Network Interface: em0, configured via DHCP
Root: password set
SSH: enabled by default (password auth disabled -> PasswordAuthentication no)
Type:shutdown -p now
Change the hostname and apply now:hostname dfbsd.lab.local
To keep the change at startup, you need to add|modify the file /etc/rc.conf:hostname="dfbsd.lab.local"
Set the static IP address modifying the file /etc/rc.conf:ifconfig_em0="inet 192.168.1.26/24"
defaultrouter="192.168.1.1"
Resolving DNS, change the file /etc/resolv.conf:nameserver 8.8.8.8
nameserver 8.8.4.4
lookup file bind
Restart the network stack to apply the changes:pkill dhclient # if necessary (pgrep dhclient)
service netif restart
service routing restart
Change the file /etc/rc.conf:ifconfig_hn0="DHCP"
defaultrouter="NO"
Restart the network stack to apply the changes:service netif restart
service routing restart
dhclient em0
Don't forget to change your /etc/hosts file.
Finally, check the result with: ifconfig em0
You can interactively use the command:
adduser
The hard way:
To add a user named admin:pw user add -m -n admin
To allow admin to use sufor administration: pw group mod wheel -m admin
Assign a password to admin:passwd admin
Check the results with: id admin
You can now use ssh to administrate the box remotely:ssh admin@IP_ADDRESS
If you can't access the remote host using ssh, just apply the following:
Change the file /etc/ssh/sshd_config:PasswordAuthentication yes
Restart sshd: service sshd restart
DragonFlyBSD does not include sudo or doas by default.
Before being able to do that, you need to get root access using the command:suThen update your pkg database:pkg update && pkg upgrade
If any of the above commands fail, run the following:cp /usr/local/etc/pkg/repos/df-latest.conf.sample /usr/local/etc/pkg/repos/df-latest.confThen, retry both commands.
And finally install sudo: pkg install sudo
Or If you prefer to use doas:pkg install doas
Alternatively, you can use the built-insu For example:su root -c "pkg update && pkg upgrade"
Let's install nginx:pkg install nginx
The configuration file is here: /usr/local/etc/nginx/nginx.conf
No need to tune it. It is enough for our test.
By default the root web directory is /usr/local/www/nginx.
Enable nginx at startup and start it:rcenable nginx
You can manage the nginx daemon: service nginx start|stop|etc.
cd /usr/local/www/nginx
mv index.html index.html.backup
echo '<h1>It works!</h1>' > index.html
You can now browse the test page from another computer by navigating to http://<IP_ADDRESS>.
DragonFlyBSD has three firewalls built into the base system: IPFW, IPFW3(gets regular updates) and PF.
We will use PF:rcenable pf
Logging support for PF is provided by pflog(4):rcenable pflog
Change the file /etc/pf.conf (allow only ping/ssh/www from anywhere):set skip on lo0
block log all
pass in on em0 inet proto icmp all icmp-type echoreq
pass in on em0 inet proto tcp from any to any port {ssh, www}
pass out
| Action | Command |
|---|---|
| Start PF | service pf start |
| Start pflog | service pflog start |
| Check the rules syntax | pfctl -nf /etc/pf.conf |
| Apply new rules | pfctl -f /etc/pf.conf |
| View active rules | pfctl -s rules |
| Flush current rules | pfctl -F rules |
| Disable PF | pfctl -d |
| Enable PF | pfctl -e |
| Check logs | tcpdump -nettti pflog0 |
You need to upgrade.
To upgrade from version 5.8.3 to 6.4.0:
Upgrade the userland and kernel by following the -STABLE branch:cd /usr
make src-create
cd /src
git checkout DragonFly_RELEASE_6_4
git pull
#
# Read carefully /usr/src/UPDATING.
#
make build-all
make install-all
reboot
Upgrade the packages:pkg upgrade -f
pkg autoremove
reboot
You can check your version, using: uname -a
Then, If everything works fine, you can finally rebuild the rescue system with:cd /usr/src && make initrd
Type: df -hThe results:Filesystem Size Used Avail Capacity Mounted on
serno/VB3874f423-9fac53ce.s1d 6812M 5078M 1734M 75% /
devfs 1024B 1024B 0B 100% /dev
/dev/serno/VB3874f423-9fac53ce.s1a 1022M 737M 203M 78% /boot
/build/usr.obj 6812M 5078M 1734M 75% /usr/obj
/build/var.crash 6812M 5078M 1734M 75% /var/crash
/build/var.cache 6812M 5078M 1734M 75% /var/cache
/build/var.spool 6812M 5078M 1734M 75% /var/spool
/build/var.log 6812M 5078M 1734M 75% /var/log
/build/var.tmp 6812M 5078M 1734M 75% /var/tmp
tmpfs 239M 0B 239M 0% /tmp
procfs 4096B 4096B 0B 100% /proc
tmpfs 239M 0B 239M 0% /var/run/shm
The kernel (generally -> /boot/kernel/kernel):sysctl kern.bootfile
Hypervisor: nvmm(4)
Default MTA: sendmail
Pros
Cons
Last update: 2024/07/29
Click to top.