he following question was asked in the Unix networking exam: How do you speed up ping and traceroute command responses under Unix or Linux operating systems?
How can I speed up my ping or traceroute commands on a Linux?
How do I disable the route 169.254.0.0 / 255.255.0.0 from CentOS or RHEL 6 Linux server?
Q.Can you explain the meaning of following two firewall rules present in my /etc/sysconfig/iptables rules under CentOS Enterprise Linux version 5.2?
-A RH-Firewall-1-INPUT -p 50 -j ACCEPT
-A RH-Firewall-1-INPUT -p 51 -j ACCEPT