BoanHack

참조 : http://www.networkstraining.com/hsrp-vrrp-glbp-comparison/ In this article we will discuss the similarities and differences between the 3 “First Hop Redundancy” protocols supported by Cisco devices. These are Hot Standby Router Protocol (HSRP), Virtual Router Redundancy Protocol (VRRP) and Gateway Load Balancing Protocol (GLBP).The main purpose of the above protocols is to provide redundanc..

*Disk SATA 버전 정보 확인 #dmesg | grep -i sata | grep 'link up' SATA Link up 6.0Gbps - SATA3 SATA Link up 3.0Gbps - SATA2 SATA Link up 1.5Gbps - SATA1 SATA REVISION => SPEED ({Gbit|MB}/s)SATA revision 1.0 => 1.5 Gbit/s, 150 MB/sSATA revision 2.0 => 3 Gbit/s, 300 MB/sSATA revision 3.0 => 6 Gbit/s, 600 MB/sSATA revision 3.2 => 16 Gbit/s, 1969 MB/s sample [ 18.120000] ata1: SATA link up 3.0 Gbps (SStatu..

You’ll understand how to auto-save captures to multiple files, auto-save captures based on time limits, specify your own buffer size for capture, extract specific fields from the capture, and display statistics for a specific protocol from a capture. 1. Auto-save Captures to Multiple FilesFor example on your production server, you want to capture traffic data for an extended period of time. You ..

NAMEwireshark-filter - Wireshark filter syntax and referenceSYNOPSISwireshark [other options] [ -R "filter expression" ]tshark [other options] [ -R "filter expression" ]DESCRIPTIONWireshark and TShark share a powerful filter engine that helps remove the noise from a packet trace and lets you see only the packets that interest you. If a packet meets the requirements expressed in your filter, then..

PCAP-FILTERNAME DESCRIPTION EXAMPLES SEE ALSO AUTHORS BUGS NAMEpcap-filter − packet filter syntaxDESCRIPTIONpcap_compile() is used to compile a string into a filter program. The resulting filter program can then be applied to some stream of packets to determine which packets will be supplied to pcap_loop(), pcap_dispatch(), pcap_next(), or pcap_next_ex().The filter expression consists of one or ..

NAMEtshark - Dump and analyze network trafficSYNOPSIStshark [ -2 ] [ -a ] ... [ -b ] ... [ -B ] [ -c ] [ -C ] [ -d ==, ] [ -D ] [ -e ][ -E ] [ -f ] [ -F ] [ -g ] [ -h ] [ -H ] [ -i |- ] [ -I ] [ -K ] [ -l ] [ -L ] [ -n ] [ -N ] [ -o ] ... [ -O ] [ -p ] [ -P ] [ -q ][ -Q ] [ -r ] [ -R ] [ -s ] [ -S ] [ -t a|ad|adoy|d|dd|e|r|u|ud|udoy ] [ -T fields|pdml|ps|psml|text ] [ -u ] [ -v ] [ -V ] [ -w |- ..

NAMEtext2pcap - Generate a capture file from an ASCII hexdump of packetsSYNOPSIStext2pcap [ -a ] [ -d ] [ -D ] [ -e ] [ -h ] [ -i ] [ -l ] [ -n ] [ -m ] [ -o hex|oct|dec ] [ -q ] [ -s ,, ] [ -S ,, ] [ -t ] [ -T , ] [ -u , ] [ -v ] |- |-DESCRIPTIONText2pcap is a program that reads in an ASCII hex dump and writes the data described into a pcap capture file. text2pcap can read hexdumps with multipl..

NAMEmergecap - Merges two or more capture files into oneSYNOPSISmergecap [ -a ] [ -F ] [ -h ] [ -I ] [ -s ] [ -v ] [ -V ] -w |- [ ...]DESCRIPTIONMergecap is a program that combines multiple saved capture files into a single output file specified by the -w argument. Mergecap knows how to read pcap capture files, including those of tcpdump, Wireshark, and other tools that write captures in that fo..

NAMEcapinfos - Prints information about capture filesSYNOPSIScapinfos [ -a ] [ -A ] [ -b ] [ -B ] [ -c ] [ -C ] [ -d ] [ -e ] [ -E ] [ -F ] [ -h ] [ -H ] [ -i ] [ -I ] [ -l ] [ -L ] [ -m ] [ -M ] [ -N ] [ -o ] [ -q ] [ -Q ] [ -r ] [ -R ] [ -s ] [ -S ] [ -t ] [ -T ] [ -u ] [ -v ] [ -x ] [ -y ] [ -z ] ...DESCRIPTIONCapinfos is a program that reads one or more capture files and returns some or all ..

NAMEeditcap - Edit and/or translate the format of capture filesSYNOPSISeditcap [ -a ] [ -A ] [ -B ] [ -c ] [ -C [offset:] ] [ -E ] [ -F ] [ -h ] [ -i ] [ -o ] [ -L ] [ -r ] [ -s ][ -S ] [ -t ] [ -T ] [ -v ] infile outfile [ packet#[-packet#] ... ]editcap -d | -D | -w [ -v ] [ -I ] infile outfileeditcap [ -V ]DESCRIPTIONEditcap is a program that reads some or all of the captured packets from the ..