Unexpected Fail over warning on Couchbase servers

This is the “expected” behavior. Let me explain it, with a cluster of 3 nodes and 1 replica. So you have started with 1 node, so in this case you have only “active documents” (no replica) Then you add another node, and do a rebalance. Once it is done you have 50% of the active […]

Installing node on Fedora 22

yum install gcc-c++ make openssl-devel   Install from Source code : wget http://nodejs.org/dist/v0.8.15/node-v0.8.15.tar.gz tar zxvf node-v0.8.15.tar.gz cd node-v0.8.15 ./configure make make install Install from GIT repository yum install git git clone git://github.com/joyent/node.git cd node ./configure make make install   nJoy 😉  

Bash test if port is open no external tools

Assume you do not have curl/telnet/netcat (or nc does not support -z as in later versions ?? why did they remove it ?? ) the following will work on any recent Bash version. (echo > /dev/tcp/skinner/22) >/dev/null 2>&1 && echo “Port is open” || echo “Port is closed” nJoy 😉