denisshevchenko

{-# LANGUAGE OverloadedStrings #-}

import           Network.HTTP.ReverseProxy 
import           Network.HTTP.Client        
import           Network.HTTP.Types
import qualified Network.Wai                as WAI
import           Network.Wai.Handler.Warp   (run)
import           Data.Conduit.Network

main :: IO ()

denisshevchenko

Host-Only vboxnet0

Adapter
  IPv4 Address: 192.168.56.100
  IPv4 Mask: 255.255.255.0

DHCP
  Enable
  192.168.56.100
  255.255.255.0

denisshevchenko

general:
  branches:
    ignore:
      - gh-pages

dependencies:
  cache_directories:
    - "~/.stack"
  pre:
    - sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 575159689BEFB442

denisshevchenko

mkdir test
cd test
git init
git remote add channels git://github.com/NixOS/nixpkgs-channels.git
git remote update channels
git checkout nixos-16.03
cd
nix-env -f test/ -i firefox

denisshevchenko

stack --resolver nightly exec stackage-curator check

denisshevchenko

ssh -v denisshevchenko@hostname

denisshevchenko

VAL=`echo '{"request":{"mbean":"com.hazelcast:instance=_hzInstance_1_dev,name=_hzInstance_1_dev,type=HazelcastInstance","attribute":"memberCount","type":"read"},"value":2,"timestamp":1463556795,"status":200}' | sed -e 's/^.*"type"[ ]*:[ ]*"//' -e 's/".*//'`
echo $VAL

denisshevchenko

# http://www.tecmint.com/command-line-tools-to-monitor-linux-performance/

# Top – Linux Process Monitoring
$ top

# VmStat – Virtual Memory Statistics
$ vmstat

# Lsof – List Open Files
$ lsof

denisshevchenko

$ mysqld --skip-grant-tables

$ mysql -u root mysql
$ update user set authentication_string=password('my_password') where user='root';
$ FLUSH PRIVILEGES;

# Restart mysqld without --skip-grant-tables flag.
# It's done!

$ mysql -u root mysql

denisshevchenko

whenM (ms_isNeeded ms)
      (ifM (pure (isJust (ms_onFailure ms)) <&&> isManagerAlive m)
           (fromJust (ms_onFailure ms) >> reloadManager m)
           (killManager m))