07-03-2008
You cannot get hostname directly from an IP packet. Packets carry IP addresses , not hostnames.
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1. Programming
I have two net-card. one is 172.16.24.99(ENG) ,another is 172.16.25.99(ENG-B). Both masks is 255.255.255.0.
I will monitor data on the tcp port 8055 in ENG, How do I set option of tcpdump command (2 Replies)
Discussion started by: chenhao_no1
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2. UNIX for Dummies Questions & Answers
does anybody know what the -d -dd and -ddd options are used for ?
thanks (2 Replies)
Discussion started by: ant04
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3. IP Networking
Hi, I got the following question regarding tcpdump and I would appreciate your help/feedback:
--Scenario
I am instructed to capture the network traffic by getting the tcpdump data/files of our network for every hour.
--Problem
Some of the connections are still open when the capture is done... (1 Reply)
Discussion started by: jinsunnyvale
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4. Cybersecurity
i would like to know about tcpdump
i would like to use tcpdump to get information about these
- Date
- time
- source hostname
- source mac address
- source ip address
- destination ip address
- see outbound only
then i use command like this
tcpdump -i le0 -n -q -tttt -e src net... (0 Replies)
Discussion started by: chamnanpol
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5. Linux
Hi,
I want to capture TCPDUMP of traffic, I tried doing this but did not find success..can anyone plz correct it.
# tcpdump -s0 -vv -w /home/osuresh/test_tcp_dump host 10.12.10.22 && port 161
bash: tcpdump: command not found
# tcpdump -s0 -vv -w /home/osuresh/test_tcp_dump host... (5 Replies)
Discussion started by: sureshcisco
5 Replies
6. UNIX for Dummies Questions & Answers
Hi Everyone,
anyone face "tcpdump -i any" does not work? i mean if i use -i eth0, can capture eth0, or use -i eth1 also can. but then tcpdump -i any, seems cannot capture packets. :confused:
please advice, thanks (2 Replies)
Discussion started by: jimmy_y
2 Replies
7. Shell Programming and Scripting
I'm new to the Unix/Linux world. I have taken classes and played with a few simple scripts but never had a real world application. Here is my problem.
What I need to do is every 15min between 8am and 5pm, run
tcpdump -s 2000 -w flowroute-0000.pcap
where the "0000" is the current time.
... (4 Replies)
Discussion started by: Nasasdge
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8. Debian
Hi.
Need Help with TcpDump
Trying to sniff associatio-request with tcpdump but when i run this tcpdump -i eth0 wlan subtype assoc-req i get this error
can anyone help me with this error ? Thanks alot !!:) (1 Reply)
Discussion started by: SoulZB
1 Replies
9. IP Networking
I've recently started learning to use TCPdump, and I find it pretty interesting. There's one thing I don't understand. When I tell it to capture packets on, say, the WiFi interface en1, it often captures packets sent or received by other hosts on the network. How can it do this? My... (3 Replies)
Discussion started by: Ultrix
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LEARN ABOUT MINIX
defaultrouter
defaultrouter(4) File Formats defaultrouter(4)
NAME
defaultrouter - configuration file for default router(s)
SYNOPSIS
/etc/defaultrouter
DESCRIPTION
The /etc/defaultrouter file specifies a IPv4 host's default router(s).
The format of the file is as follows:
IP_address
...
The /etc/defaultrouter file can contain the IP addresses or hostnames of one or more default routers, with each entry on its own line. If
you use hostnames, each hostname must also be listed in the local /etc/hosts file, because no name services are running at the time that
defaultrouter is read.
Lines beginning with the ``#'' character are treated as comments.
The default routes listed in this file replace those added by the kernel during diskless booting. An empty /etc/defaultrouter file will
cause the default route added by the kernel to be deleted.
Use of a default route, whether received from a DHCP server or from /etc/defaultrouter, prevents a machine from acting as an IPv4 router.
You can use routeadm(1M) to override this behavior.
FILES
/etc/defaultrouter Configuration file containing the hostnames or IP addresses of one or more default routers.
SEE ALSO
in.rdisc(1M), in.routed(1M), routeadm(1M), hosts(4)
SunOS 5.10 17 Aug 2004 defaultrouter(4)