Thank You Asraf
Keep Sharing On Tue, Dec 22, 2009 at 3:50 PM, ashraf mohammed <[email protected]>wrote: > > > > {1} The command vmstat reports information about processes, memory, > paging, block IO, traps, and cpu activity. > # vmstat 3 {2} Display Memory Utilization Slabinfo# vmstat -mGet > Information About Active / Inactive Memory Pages# vmstat -a {3} Find Out The > Top 10 Memory Consuming Process# ps -auxf | sort -nr -k 4 | head -10Find Out > top 10 CPU Consuming Process# ps -auxf | sort -nr -k 3 | head -10 {4} #9: > mpstat - Multiprocessor UsageThe > mpstat command displays activities for each available processor, > processor 0 being the first one. mpstat -P ALL to display average CPU > utilization per processor: > # mpstat -P ALL {5} > To display process memory information for pid # 47394, enter: > # pmap -d 47394 {6}#14: tcpdump - Detailed Network Traffic AnalysisThe > tcpdump is simple command that dump traffic on a network. However, you > need good understanding of TCP/IP protocol to utilize this tool. > For.e.g to display traffic info about DNS, enter: > # tcpdump -i eth1 'udp port 53' > To > display all IPv4 HTTP packets to and from port 80, i.e. print only > packets that contain data, not, for example, SYN and FIN packets and > ACK-only packets, enter: > # tcpdump 'tcp port 80 and (((ip[2:2] - ((ip[0]&0xf)<<2)) - > ((tcp[12]&0xf0)>>2)) != 0)' > To display all FTP session to 202.54.1.5, enter: > # tcpdump -i eth1 'dst 202.54.1.5 and (port 21 or 20' > To display all HTTP session to 192.168.1.5: > # tcpdump -ni eth0 'dst 192.168.1.5 and tcp and port http' {7} # cat > /proc/cpuinfo > # cat /proc/meminfo > # cat /proc/zoneinfo > # cat /proc/mounts > > The INTERNET now has a personality. YOURS! See your Yahoo! Homepage. > http://in.yahoo.com/ > > [Non-text portions of this message have been removed] > > > -- Regards PRASHANT KOKATE Sent from Mumbai, MH, India [Non-text portions of this message have been removed]
