Published December 10, 2018 Remove Spam Email from Virtualmin just run /etc/webmin/virtual-server/spamclear.pl –debug Make sure policy is set in Mailbox Cleanup
Published July 30, 2015 Change Centos IP address In common situation, “system ip address” is the ETH0 address. So edit /etc/sysconfig/network-scripts/ifcfg-eth0 with your favourite text editor and run service network […]
Published October 11, 2013 TCPDUMP to sniff headers This tcpdump command will grab the first 1024 bytes (vs. smaller 68 or so) and line buffer the output for all packets […]
Published November 23, 2020 DHCP – DORA DHCP Process Discover – Client sends a broadcast Discover Offer – Server replies with an offer of IP details Request – Client […]