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--- public:networking_tools [2020/10/10 10:41] – [Multipath Network Testing] lstolp
+++ public:networking_tools [2020/10/18 13:26] – lstolp
@@ Line 1: / Line 1: @@
 ====== Linux Network Testing Tools ======
-==== Multipath Network Testing ====
-To test different network paths from ship to shore using each WAN option directly.
-== Hardware Used ==
+[[public:multipath |Multipath Network ]]
-  fitlet2 J3455 Barebone
+[[public:tcp_dump|tcpdump]]
-GB RAM for Fitlet2
-GB SATA SSD for fitlet2
-  FC-M2LAN FACET-Card (2x Gbit Ethernet)
-===== tcpdump =====
+[[public:nmap|NMAP]]
+[[public:iftop|iftop]]
-If you ssh into a computer and want to use tcpdump to view traffic, ssh (22) can be excluded
+[[public:iPerf|iPerf]]
-  tcpdump -I [interface] -n 'port!22'
-Capture traffic leaving a host
-  tcpdump -pi [interface] src host [hostname]
-Watch for traffic leaving one network and entering two other networks
-  tcpdump -pi [interface] src net [network] and dst net [network2] or [network3]
-  tcpdump -pi [interface] src net 128.128.252.0/28 and dst 192.168.11.0/24 or 192.168.12/24
-===== NMAP =====
-To see what computers are up, what OS they are running and what ports are open:
-  nmap -sS -O [network]    ie: nmap -sS -O 192.168.11.0
-===== iftop =====
-To look at https traffic on the science network:
-  iftop -i [interface] -f "dst port 443"
-===== iPerf =====
-Need to setup a server (sender) and client (listener)
-  On shore just listen
-         iperf -s -u
-  On shore listen on a certain port
-      iperf -s -u -p 55437
-  From ship, send 7 M
-     iperf -c [shoreip number]  -u -t 120 -b 7M