Update your openssl libary now!
I guess the bug could be one of the most urgent bugs we had.
What you should do:
- check if you are infected
- golang based and easy scriptable if you want to check some more hosts
- upgrade your openssl (as the patches are available)
- Fedora/Redhat/Centos yum update -y openssl
And dont forget to restart your apache/nginx/lighttpd/postfix/whatever server.
As i normally maintain a higher range of ip addresses i just wrote a short script
Step 1: fping -g IPRANGE > ips.txt
Step2: sh test.sh > test.txt
for line in `cat ips.txt | cut -d ' ' -f1`
Step 3: login to the server and solve the issue