In this guide we will setup an OpenGear ACM5004 for remote mgmt and remote SSH capabilities (serial ports) over the mobile network, utilizing DynDNS to enable easy connection to the device. A fair warning first, I would not use the OpenGear over cellular networks as a permanent solution to access any equipment. The reason being […]
Just a quick tip on how to display MAC addresses in the TCPdump utility. Simply use the “-e” switch. tcpdump -i INTERFACENAME -e Without the -e switch: [CheckPoint]# tcpdump -i bond2.100 -n 12:28:42.257902 IP 10.20.20.31.49155 > 10.254.25.116.49929: . ack 1831 win 513 12:28:42.258620 IP 10.20.20.31.49155 > 10.254.25.116.49929: P 1:286(285) ack 1831 win 513 With the […]
I came across a Meru WLC that required a weekly boot, and unfortunately, there is no command to schedule reboots Nor did the customer have any Management Systems that could sort this out.
Most network administrators have at some point or another wished telnet worked for UDP as well as TCP. Because of UDP being a connectionless transport protocol, scanning UDP ports is a bit more tricky than issuing the command “telnet smtp.mailserver.com 25”.