How to Install tmate slave on CentOS 6.6

###1- Install required packages for tmate and for compiling

Use group install for development tools. It will install all the following pakcages for you: autoconf automake binutils bison flex gcc gcc-c++ gettext libtool make patch pkgconfig redhat-rpm-config rpm-build rpm-sign

# yum groupinstall -y 'Development Tools'

Then install other required packages for tmate

# yum install -y git kernel-devel zlib-devel openssl-devel ncurses-devel cmake ruby libssh-devel wget

Check if libevent is installed and the version. We need libevent2

# rpm -qa | grep libevent
libevent-devel-1.4.13-4.el6.x86_64
libevent-doc-1.4.13-4.el6.noarch
libevent-headers-1.4.13-4.el6.noarch
libevent-1.4.13-4.el6.x86_64

If the version is older, remove it

yum remove -y libevent libevent-devel libevent-headers

Download libevent2

wget https://github.com/downloads/libevent/libevent/libevent-2.0.21-stable.tar.gz
tar xf libevent-2.0.21-stable.tar.gz
cd libevent-2.0.21-stable

Compile it and install

./configure && \
make && \
make install
cd ..

Create a symbolic link if you are on a 64-bit server

ln -s /usr/local/lib/libevent-2.0.so.5 /usr/lib64/libevent-2.0.so.5

###2- Installing tmate-slave

Now download tmate-slave

git clone https://github.com/nviennot/tmate-slave.git
cd tmate-slave/
./autogen.sh && \
./configure && \
make && \
make install

###2- Configure tmate-slave

setup tmate-slave user

useradd tmate-slave

setup tmate-slave config

setup conf dir

mkdir /etc/tmate-slave

setup keys

./create_keys.sh 
install -D -m 0700 -o tmate-slave -g root keys/* /etc/tmate-slave/keys
chmod 0700 keys

Setup daemon

touch /var/log/tmate-slave.{log,err} chown tmate-slave /var/log/tmate-slave.{log,err}

setcap CAP_SYS_ADMIN=ep /usr/local/bin/tmate-slave

cat << 'EOF' > /etc/init.d/tmate-slave #!/bin/sh

BEGIN INIT INFO

Provides:

Default-Start: 2 3 4 5

Default-Stop: 0 1 6

Short-Description: Start daemon at boot time

Description: Enable service provided by daemon.

END INIT INFO

dir="/etc/tmate-slave" user="tmate-slave" cmd="/usr/local/bin/tmate-slave" args="-k /etc/tmate-slave/keys -p 2222"

name=basename $0 pid_file="/var/run/$name.pid" stdout_log="/var/log/$name.log" stderr_log="/var/log/$name.err"

get_pid() { cat "$pid_file" }

is_running() { [ -f "$pid_file" ] && ps get_pid > /dev/null 2>&1 }

case "$1" in start) if is_running; then echo "Already started" else echo "Starting $name" cd "$dir" su - "$user" -c "$cmd $args" >> "$stdout_log" 2>> "$stderr_log" & echo $! > "$pid_file" if ! is_running; then echo "Unable to start, see $stdout_log and $stderr_log" exit 1 fi fi ;; stop) if is_running; then echo -n "Stopping $name.." kill get_pid for i in {1..10} do if ! is_running; then break fi

        echo -n "."
        sleep 1
    done
    echo

    if is_running; then
        echo "Not stopped; may still be shutting down or shutdown may have failed"
        exit 1
    else
        echo "Stopped"
        if [ -f "$pid_file" ]; then
            rm "$pid_file"
        fi
    fi
else
    echo "Not running"
fi
;;
restart)
$0 stop
if is_running; then
    echo "Unable to stop, will not attempt to start"
    exit 1
fi
$0 start
;;
status)
if is_running; then
    echo "Running"
else
    echo "Stopped"
    exit 1
fi
;;
*)
echo "Usage: $0 {start|stop|restart|status}"
exit 1
;;

esac

exit 0 EOF

chmod +x /etc/init.d/tmate-slave

###3- Starting tmate-slave


If SSH is running, select another port and start tmate

sudo service tmate-slave start

###4- Configuring the client to use your server

Create `$HOME/.tmate.conf` with the following

set -g tmate-server-host "[your server FQDN]" set -g tmate-server-port [server port] set -g tmate-server-dsa-fingerprint "dsa fingerprint" set -g tmate-server-rsa-fingerprint "rsa fingerprint" set -g tmate-server-ecdsa-fingerprint "ecdsa fingerprint" #set -g tmate-identity "" # Can be specified to use a different SSH key