How to setup ejfat nodes

1. Install BOOST with:

   sudo apt-get install lib boost-all-dev

2. Install ZMQ with:

   sudo apt install libzmq3-dev

3. For ERSAP install protobuf:

   sudo apt install libprotobuf-dev protobuf-compiler

4. For increased UDP buffer sizes:
   1. For the long term write the following lines into the sysctl.conf file:

      net.core.rmem_max=25000000

      net.core.wmem_max=25000000

   2. To make it immediately effective, execute:

      sudo sysctl -w net.core.rmem_max=25000000

      sudo sysctl -w net.core.wmem_max=25000000

5. To mount /daqfs:
   1. sudo mkdir /daqfs
   2. edit /etc/fstab to include the line:

      dubhe:/raid/daqfs          nfs     rw,bg           0       0

   3. sudo apt-get install nfs-common
   4. sudo mount /daqfs
6. To change one's home directory to /daqfs/home/myUserName:
   1. Edit the /etc/passwd file to include a line something like:

      myUserName:x:2101:1208:John Doe,,,:/daqfs/home/myUserName:/bin/bash

      where 2101 is user id and 1208 is epsci group