My customers are running many scripts that uses memcached, but all of them are using localhost as a address. My localhost server is now out of RAM, because it's doing many other things like WWW and MySQL servers.
Now I got a brand new server with 16 GB RAM which I can use as a dedicated memcached server. How to redirect localhost:12111 to domain.com:12111 server ?
I can't switch localhost to something else in /etc/hosts because all my databases use such address.
Make an effort, 1 minute of Googling would give you the answer.
In no particular order, you could use:
Or do a simple grep for localhost and replace it with a hostname that you can change.
sysctl -w net.ipv4.ip_forward=1
iptables -t nat -A POSTROUTING -j MASQUERADE
iptables -t nat -A PREROUTING -d 127.0.0.1 -p tcp --dport 11211 -j DNAT --to 192.168.1.2:11211
iptables -P FORWARD ACCEPT
echo " 127.0.0.1 11211 192.168.1.2 11211" >> /etc/rinetd.conf
/etc/init.d/rinetd restart
nc -l -p 11211 -c "nc 192.168.1.2 11211"
ssh user@192.168.1.2 -L 11211:192.168.1.2:11211
cat > /etc/xinet.d/memfw << eof
service memfw {
disable = no
type = UNLISTED
socket_type = stream
protocol = tcp
user = nobody
wait = no
redirect = 192.168.1.2 11211
port = 11211
}
eof
