Openvpn client Freebsd



  • Basic openvpn client Freebsd

    pkg install openvpn
    
    sysrc openvpn_enable="YES"
    
    sysrc openvpn_if="tun"
    

    Place your openvpn config file in a location unavailable to other users.

    Insure your <openvpn>.conf contains the proper tunnel name, in this case I’ll use ‘tun’


    This guide is basic! For simplicity of getting started; As well, service openvpn start is not required or needed in this situation!

    service openvpn start
    

    cd into the directory of your config file

    then: openvpn config.conf

    Output:

    Fri Nov 10 04:45:43 2017 library versions: OpenSSL 1.0.2k-freebsd  26 Jan 2017, LZO 2.10
    Enter Auth Username:
    Enter Auth Password:
    Fri Nov 10 04:45:50 2017 TCP/UDP: Preserving recently used remote address: [AF_INET]<ip and port will print here>
    Fri Nov 10 04:45:50 2017 UDP link local (bound): [AF_INET][undef]:0
    Fri Nov 10 04:45:50 2017 UDP link remote: [AF_INET]<ip and port will print here>
    Fri Nov 10 04:45:50 2017 WARNING: this configuration may cache passwords in memory -- use the auth-nocache option to prevent this
    Fri Nov 10 04:45:50 2017 [rick] Peer Connection Initiated with [AF_INET]<ip and port will print here>
    Fri Nov 10 04:45:51 2017 TUN/TAP device /dev/tun0 opened
    Fri Nov 10 04:45:51 2017 do_ifconfig, tt->did_ifconfig_ipv6_setup=0
    Fri Nov 10 04:45:51 2017 /sbin/ifconfig tun0 10.10.2.10 10.10.2.9 mtu 1500 netmask 255.255.255.255 up
    add net <ip will print here>: gateway 10.10.5.1
    add net 0.0.0.0: gateway 10.10.2.9
    add net 128.0.0.0: gateway 10.10.2.9
    add net 10.10.1.0: gateway 10.10.2.9
    add net 10.10.2.1: gateway 10.10.2.9
    Fri Nov 10 04:45:51 2017 Initialization Sequence Completed
    

    As you can see there is a prompt for username and password. This can be circumvented, as well as starting the connection at boot. However this is just to get you going.

    There is much more to learn!



  • Hint:

    kldload if_tun
    




Tmux Commands

screen and tmux

A comparison of the features (or more-so just a table of notes for accessing some of those features) for GNU screen and BSD-licensed tmux.

The formatting here is simple enough to understand (I would hope). ^ means ctrl+, so ^x is ctrl+x. M- means meta (generally left-alt or escape)+, so M-x is left-alt+x

It should be noted that this is no where near a full feature-set of either group. This - being a cheat-sheet - is just to point out the most very basic features to get you on the road.

Trust the developers and manpage writers more than me. This document is originally from 2009 when tmux was still new - since then both of these programs have had many updates and features added (not all of which have been dutifully noted here).

Action tmux screen
start a new session tmux OR
tmux new OR
tmux new-session
screen
re-attach a detached session tmux attach OR
tmux attach-session
screen-r
re-attach an attached session (detaching it from elsewhere) tmux attach -d OR
tmux attach-session -d
screen -dr
re-attach an attached session (keeping it attached elsewhere) tmux attach OR
tmux attach-session
screen -x
detach from currently attached session ^b d OR
^b :detach
^a ^d OR
^a :detach
rename-window to newname ^b , <newname> OR
^b :rename-window <newn>
^a A <newname>
list windows ^b w ^a w
list windows in chooseable menu ^a "
go to window # ^b # ^a #
go to last-active window ^b l ^a ^a
go to next window ^b n ^a n
go to previous window ^b p ^a p
see keybindings ^b ? ^a ?
list sessions ^b s OR
tmux ls OR
tmux list-sessions
screen -ls
toggle visual bell ^a ^g
create another window ^b c ^a c
exit current shell/window ^d ^d
split window/pane horizontally ^b " ^a S
split window/pane vertically ^b % ^a |
switch to other pane ^b o ^a <tab>
kill the current pane ^b x OR (logout/^D)
collapse the current pane/split (but leave processes running) ^a X
cycle location of panes ^b ^o
swap current pane with previous ^b {
swap current pane with next ^b }
show time ^b t
show numeric values of panes ^b q
toggle zoom-state of current pane (maximize/return current pane) ^b z
break the current pane out of its window (to form new window) ^b !
re-arrange current panels within same window (different layouts) ^b [space]
Kill the current window (and all panes within) ^b killw [target-window]
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