Debug on Console

HOW TO INSTALL TCPDUMP IN LINUX Many of Linux distributions already shipped with  tcpdump  tool, if in case you don’t have it on systems, you can install it using following Yum command. # yum install tcpdump Once  tcpdump  tool is installed on systems, you can continue to browse following commands with their examples. 1. CAPTURE PACKETS FROM SPECIFIC INTERFACE The command screen will scroll up until you interrupt and when we execute tcpdump  command it will captures from all the interfaces, however with  -i  switch only capture from desire interface. # tcpdump -i eth0 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes 11:33:31.976358 IP 172.16.25.126.ssh > 172.16.25.125.apwi-rxspooler: Flags [P.], seq 3500440357:3500440553, ack 3652628334, win 18760, length 196 11:33:31.976603 IP 172.16.25.125.apwi-rxspooler > 172.16.25.126.ssh: Flags [.]...