IlyaMoiseev

Create bridge (kernel)

sudo ovs-vsctl --if-exists del-br ofsw -- add-br ofsw -- set bridge ofsw other-config:datapath-id=0000000000000001 -- set bridge ofsw fail_mode=secure -- set bridge ofsw protocols=OpenFlow13 -- set-controller ofsw tcp:172.31.0.7:6653 -- set controller ofsw connection-mode=out-of-band
ovs-ofctl -O OpenFlow13 dump-flows ofsw1

Meters

ovs-vsctl add-br sw -- set bridge sw other-config:datapath-id=00:00:00:22:3d:6b:00:00 -- set bridge sw protocols=OpenFlow13 -- set bridge sw datapath_type=netdev
ovs-ofctl -O Openflow13 add-meter sw meter=2,kbps,band=type=drop,rate=15000

IlyaMoiseev

To install tcptraceroute on Debian/Ubuntu:

$ sudo apt-get install tcptraceroute

To install tcptraceroute on CentOS/REHL, first set up RepoForge on your system, and then:

$ sudo yum install tcptraceroute

IlyaMoiseev

ovs-dpctl show -s
ovs-ofctl show, dump-ports, dump-flows, add-flow, mod-flows, del-flows
ovsdb-tools show-log -m
ovs-vsctl
  show - show the ovsdb
  bridge -  add-br, list-br, del-br, br-exists.
  port   -  list-ports, add-port, del-port, add-bond, port-to-br.
  interface -  list-ifaces, iface-to-br
  ovs-vsctl list/set/get/add/remove/clear/destroy table record column [value], tables like "bridge", "controller","interface","mirror","netflow","open_vswitch","port","qos","queue","ssl","sflow".

IlyaMoiseev

Edit mc’s ini file (either ~/.mc/ini or ~/.config/mc/ini) and look for the line [Colors]. Then, change the line base_color to this:

[Colors]
base_color=linux:normal=white,black:marked=yellow,black:input=,green:menu=black:menusel=white:menuhot=red,:menuhotsel=black,red:dfocus=white,black:dhotnormal=white,black:dhotfocus=white,black:executable=,black:directory=white,black:link=white,black:device=white,black:special=white,black:core=,black:stalelink=red,black:editnormal=white,black 

IlyaMoiseev

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname