Rosetta Stone:

Profile:

~/.profile:

BASHBIN="/usr/local/bin/bash"
echo
if [ "$( $BASHBIN --version )"  ]; then
  if [ "$?" = "0" ]; then
    if [ "$( which bash )" = "$BASHBIN" ]; then
      /usr/local/bin/bash
    else
        echo "\"Which bash\" does not match $BASHBIN"
    fi
  else
    echo "Bash exit status was not 0"
  fi
else
  echo "Bash binary did not start"
fi
echo

Sparsefiles/loop:

add:

mdconfig -a -t vnode -f /usr/data/gdata.md

del:

mdconfig -d -u 0

list:

mdconfig -l

Disks:

fsck -p -t ffs /dev/md0.eli

newfs -U -O 1 -f 512 -b 4096 -i 8192 /dev/md0

grep ada /var/run/dmesg.boot
grep ada /var/run/dmesg.boot | grep \<
grep "\(atapci\|ahcich\)" /var/run/dmesg.boot|sort

camcontrol devlist 
camcontrol devlist -b
camcontrol devlist -v
camcontrol devlist -v|grep -A 1 ^sc
camcontrol identify ada0

diskinfo -v /dev/ada0
diskinfo -t

Partitions:

gpart show ada0
gpart create -s gpt da0

single:

gpart add -t freebsd-ufs ada1

slices(?) :

gpart add -t freebsd-boot -l gpboot -b 40 -s 512K da0
gpart bootcode -b /boot/pmbr -p /boot/gptboot -i 1 da0
gpart add -t freebsd-ufs -l gprootfs -b 1M -s 2G da0
gpart add -t freebsd-swap -l gpswap -s 512M da0
gpart add -t freebsd-ufs  -l gpvarfs -s 1G da0
gpart add -t freebsd-ufs  -l gptmpfs -s 256M da0
gpart add -t freebsd-ufs  -l gpusrfs -a 1M da0

gpart delete -i 1 da0

gpart destroy da0

Encrypt disk using geli:

geli init /dev/md0
geli attach md0
geli detach md0

Memory:

sysctl hw.physmem
grep memory /var/run/dmesg.boot 

Ramdisk:

mdmfs -s 1g md1 /mnt/mdmfs

Open files:

fstat
fstat -f /usr (-u pid -u user)

Monitor:

iostat -w 1 da0 da1
systat
systat iostat, vmstat, netstat, mbufs, swap
gstat

Using gcc 4.8:

./configure CC=/usr/local/bin/gcc48

Pkg:

pkg info -l pkgname
pkg which <file>
pkg audit -F

auditd:

/etc/security/audit_control: flags:lo,aa,ex,fc,fd,fw,fm,ad
/etc/security/audit_user
praudit /var/audit/current 
auditreduce -u <user> <file> | praudit
for i in /var/audit/*gz; do echo $i; zcat $i | auditreduce -u user| praudit; done
zcat /var/audit/*gz  | auditreduce -u user| praudit

ipfw:

#disable
ipfw add 1 pass all from any to any; sysctl net.inet.ip.fw.enable=0; kldunload ipfw

#enable
kldload ipfw; sysctl net.inet.ip.fw.enable=1; ipfw add 1 pass all from any to any

firewall_type="filename" // without any command-line options for ipfw
firewall_script="/etc/ipfw.rules" // executable script that includes ipfw commands

/etc/ipfw.rules

ipfw list
ipfw -a -d -e -t list

service ipfw restart

fw-test.sh:

#!/bin/sh -x
kldload ipfw; sysctl net.inet.ip.fw.enable=1; ipfw add 1 pass all from any to any
service ipfw restart
sleep 20
service ipfw stop
ipfw add 1 pass all from any to any; sysctl net.inet.ip.fw.enable=0; kldunload ipfw

/usr/share/examples/ipfw/change_rules.sh

pw:

# pw groupadd teamtwo

Adding User Accounts to a New Group Using pw
# pw groupmod teamtwo -M jru
# pw groupshow teamtwo

Update stable:

# freebsd-update fetch
# freebsd-update install

Update openssl only:

cd /usr/src
patch < /path/to/patch
cd /usr/src/secure/lib/libcrypto
make obj && make depend && make includes && make
make install
cd /usr/src/secure/lib/libssl
make clean && make depend && make includes && make
make install
cd /usr/src/secure/usr.bin/openssl
make clean && make
make install

Secure erase:

camcontrol security ada1
camcontrol security /dev/ada1 -s Erase -e Erase
camcontrol security /dev/ada1 -U user -s Erase
(?) camcontrol security ada1 --security-user user --security-set-password Erase --security-erase Erase

disable: -d password
secure erase: -e password
enhanched: -h password
unlock: -k password
password: -s password
-U user|master

Encrypted swap:

dd if=/dev/zero of=/usr/data/st0/swap0 bs=1m count=8000
chmod 0600 /usr/data/st0/swap0
mdconfig -a -t vnode -f /usr/data/st0/swap0 -u 99
geli onetime md99
chmod 600 /dev/md99.eli
swapon /dev/md99.eli

Various:

fix backspace:

stty erase \^H"

netstat -nap:

sockstat