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[DOC File]Introduction - Radford
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To connect to the router’s console, you must open a terminal on the serial port. Under Linux, minicom is the standard modem and serial port communications program (similar to Hyper Terminal in Windows). The serial port that would be accessed as COM1 in Windows is /dev/ttyS0. in Linux. COM2 is /dev/ttyS1.
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[DOC File]Viewing Packet Flows with tcpdump
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tcpdump -i eth1 -n tcp port 22. tcpump used to view packets on interface wlan0 to/from host 192.168.1.102 on TCP port 22 with no timestamps in the output (-t switch). tcpdump -i wlan0 -t host 192.168.1.102 and tcp port 22 You can also add expressions after all the command-line switches.
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[DOC File]An Introduction to TCP/IP - Oakton
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When the Web server software replies to the client, it tells the TCP application to respond back to port 2049 of the client using a source port of port 80. The client keeps track of all its requests to the server's IP address and will recognize that the reply on port 2049 isn't a request initiation for "NFS", but a response to the initial port ...
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[DOC File]Quick HOWTO : Ch14 : Linux Firewalls Using iptables ...
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Switch Description -p tcp --sport TCP source port. Can be a single value or a range in the format: start-port-number:end-port-number -p tcp --dport TCP destination port. Can be a single value or a range in the format: starting-port:ending-port -p tcp --syn Used to identify a new TCP …
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[DOC File]Stealing Passwords With Wireshark
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Click the Scan tab. In the "Targets (optional)" field, enter the IP address of your Windows 7 target Machine. In the "TCP Scan" field, select "TCP connect scan (-sT)", as shown to the right on this page. Click the Ping tab. Click the "Don't ping before scanning (-PN)" box, and uncheck all the other boxes, as shown to the right on this page.
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[DOC File]Ch 1: Introducing Windows XP
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TCP FIN scan . TCP Xmas Tree scan (FIN, URG, and PUSH) TCP Null scan . Handled differently by Linux and Windows. TCP ACK scan . Returns RST unless the port is filtered. UDP Scanning. No handshake, so less useful than TCP scans. Much more powerful in newer versions of Nmap. Sends valid UDP requests to well-known ports. Send a DNS query to port ...
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[DOC File]Quick HOWTO : Ch04 : Simple Network Troubleshooting ...
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Even if a server doesn’t respond to PING or TRACEROUTE – common for Internet servers behind a firewall, an easy way to tell if a remote server is listening on a specific TCP port is to use the telnet command. By default, telnet will try to connect on TCP port 23, but you can specify other TCP ports by typing them in after the target IP address.
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Linux tcp ping port