Lecture 9 - Socket Programming II

Lecture 9 - Socket Programming II - Socket Programming UDP...

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Socket Programming UDP
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Useful Commands and Source of Info ping ifconfig netstat traceroute dig tcpdump /proc/sys/net
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ping $ ping yahoo.com PING yahoo.com (209.131.36.159) 56(84) bytes of data. 64 bytes from b1.www.vip.sp1.yahoo.com (209.131.36.159): icmp_seq=1 ttl=54 time=216 ms 64 bytes from b1.www.vip.sp1.yahoo.com (209.131.36.159): icmp_seq=2 ttl=54 time=201 ms 64 bytes from b1.www.vip.sp1.yahoo.com (209.131.36.159): icmp_seq=3 ttl=54 time=202 ms 64 bytes from b1.www.vip.sp1.yahoo.com (209.131.36.159): icmp_seq=4 ttl=54 time=212 ms 64 bytes from b1.www.vip.sp1.yahoo.com (209.131.36.159): icmp_seq=5 ttl=54 time=188 ms 64 bytes from b1.www.vip.sp1.yahoo.com (209.131.36.159): icmp_seq=6 ttl=54 time=188 ms
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ifconfig $/sbin/ifconfig wlan0 Link encap:Ethernet HWaddr 00:1C:BF:AC:E3:8F inet addr:192.168.1.3 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::21c:bfff:feac:e38f/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:5821 errors:0 dropped:0 overruns:0 frame:0 TX packets:5628 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:4398674 (4.1 MiB) TX bytes:1469773 (1.4 MiB)
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netstat $netstat -atuvp (No info could be read for "-p": geteuid()=500 but you should be root.) Active Internet connections (servers and established)
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Lecture 9 - Socket Programming II - Socket Programming UDP...

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