eth0 has suddenly stopped working, showing DOWN

[ChipsOnFire]

I have Centos 7 on a VPS server. It has been running fine for about 3 years. On Sunday night it lost all connectivity to the net. On accessing a recovery console I can see that the eth0 adapter is down. Nothing I have tried will being it up.

Does anyone have any ideas what to try?

IP ADDR output for eth0 shows:

2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
link/ether 00:50:56:be:d4:26 brd: ff:ff:ff:ff:ff:ff
inet xx.xx.xx.xx/24 brd xx.xx.xx.255 scope global eth0
valid_lft forever preferred_lft forever

I have replace thev4 IP address with xx. The address is correct.

If I try to run ifconfig eth0 UP nothing happens

Help!

[ChipsOnFire]

OK, ignore this. This is because my VPS provider has disabled my server deliberately because they believe it is sending SYN FLOOD attacks (gulp!) .

I have created a separate request for help with figuring out how to find and stop this!