1. grep "30/May" access_log > access_log.1
2. cut -d' ' -f1 access_log.1 > access_log.2
3. sort access_log.2|uniq -c|sort -n
Live:
netstat -ntu |awk '{print $5}'| cut -d: -f1 | sort | uniq -c |sort -nr
Find the most accessed ip
awk '{print $1}' 10stillhack.txt |cut -d: -f1 | sort | uniq -c |sort -nr|more
def CalculateApacheIpHits(logfile_pathname): IpHitListing = {} Contents = open(logfile_pathname, "r").xreadlines( ) for line in Contents: Ip = line.split(" ")[0] if 6 < len(Ip) <= 15: IpHitListing[Ip] = IpHitListing.get(Ip, 0) + 1 return IpHitListing def TimeSpan(logfile_pathname): Dates = open(logfile_pathname, "r").readline( ) Last = open(logfile_pathname, "r").readlines( ) firstdate = Dates.split(" ")[3] lastdate = Last[len(Last)-1].split(" ")[3] print "" print "Log covers the dates of: " + firstdate[1:] + " - " + lastdate[1:] print "" TimeSpan("access.log.19") HitsDictionary = CalculateApacheIpHits("access.log.19") width = 10 ip = "IP Address" hits = "Hits" print '%15s %5s' % (ip, hits) print ' ---------- ----' for key in HitsDictionary.keys(): print '%15s -> %5s' % (str(key), str(HitsDictionary[key]))
Kill all process:
#ps ax -o user,pid |grep 'postfix' |awk '{print $2}' |xargs -l #ps ax -o user,pid |grep 'postfix' |awk '{print $2}' |xargs -r kill -9 #killall -9 PROCESS
Apache process memory usage
ps -ylC httpd --sort:rss
sort the top entries in your access.log
awk '{print $1}' /var/log/http/access_log | sort |uniq -c |sort -n netstat -ta |grep ESTABLISHED sar -w sar -I SUM sar -d 5 0REFERENCES
http://linuxgazette.net/123/vishnu.html
http://www.devside.net/articles/apache-performance-tuning
http://serverfault.com/questions/231940/high-linux-loads-on-low-cpu-memory-usage