標籤:http 使用 檔案 for ar art amp linux
1.查看TCP串連狀態
netstat -nat |awk ‘{print $6}’|sort|uniq -c|sort -rn
netstat -n | awk ‘/^tcp/ {++S[$NF]};END {for(a in S) print a, S[a]}’
netstat -n | awk ‘/^tcp/ {++state[$NF]}; END {for(key in state) print key,”t”,state[key]}’
netstat -n | awk ‘/^tcp/ {++arr[$NF]};END {for(k in arr) print k,”t”,arr[k]}’
netstat -n |awk ‘/^tcp/ {print $NF}’|sort|uniq -c|sort -rn
netstat -ant | awk ‘{print $NF}’ | grep -v ‘[a-z]‘ | sort | uniq -c
netstat -ant|awk ‘/ip:80/{split($5,ip,”:”);++S[ip[1]]}END{for (a in S) print S[a],a}’ |sort -n
netstat -ant|awk ‘/:80/{split($5,ip,”:”);++S[ip[1]]}END{for (a in S) print S[a],a}’ |sort -rn|head -n 10
awk ‘BEGIN{printf (“http_codetcount_numn”)}{COUNT[$10]++}END{for (a in COUNT) printf a”tt”COUNT[a]“n”}’
2.尋找請求數請20個IP(常用於尋找攻來源):
netstat -anlp|grep 80|grep tcp|awk ‘{print $5}’|awk -F: ‘{print $1}’|sort|uniq -c|sort -nr|head -n20
netstat -ant |awk ‘/:80/{split($5,ip,”:”);++A[ip[1]]}END{for(i in A) print A[i],i}’ |sort -rn|head -n20
3.用tcpdump嗅探80連接埠的訪問看看誰最高
tcpdump -i eth0 -tnn dst port 80 -c 1000 | awk -F”.” ‘{print $1″.”$2″.”$3″.”$4}’ | sort | uniq -c | sort -nr |head -20
4.尋找較多time_wait串連
netstat -n|grep TIME_WAIT|awk ‘{print $5}’|sort|uniq -c|sort -rn|head -n20
5.找查較多的SYN串連
netstat -an | grep SYN | awk ‘{print $5}’ | awk -F: ‘{print $1}’ | sort | uniq -c | sort -nr | more
6.根據連接埠列進程
netstat -ntlp | grep 80 | awk ‘{print $7}’ | cut -d/ -f1
網站日誌分析(Apache):
1.獲得訪問前10位的ip地址
cat access.log|awk ‘{print $1}’|sort|uniq -c|sort -nr|head -10
cat access.log|awk ‘{counts[$(11)]+=1}; END {for(url in counts) print counts[url], url}’
2.訪問次數最多的檔案或頁面,取前20及統計所有訪問IP
cat access.log|awk ‘{print $11}’|sort|uniq -c|sort -nr|head -20
awk ‘{ print $1}’ access.log |sort -n -r |uniq -c|wc -l
3.列出傳輸最大的幾個exe檔案(分析下載站的時候常用)
cat access.log |awk ‘($7~/.exe/){print $10 ” ” $1 ” ” $4 ” ” $7}’|sort -nr|head -20
4.列出輸出大於200000byte(約200kb)的exe檔案以及對應檔案發生次數
cat access.log |awk ‘($10 > 200000 && $7~/.exe/){print $7}’|sort -n|uniq -c|sort -nr|head -100
5.如果日誌最後一列記錄的是分頁檔傳輸時間,則有列出到用戶端最耗時的頁面
cat access.log |awk ‘($7~/.php/){print $NF ” ” $1 ” ” $4 ” ” $7}’|sort -nr|head -100
6.列出最最耗時的頁面(超過60秒的)的以及對應頁面發生次數
cat access.log |awk ‘($NF > 60 && $7~/.php/){print $7}’|sort -n|uniq -c|sort -nr|head -100
7.列出傳輸時間超過 30 秒的檔案
cat access.log |awk ‘($NF > 30){print $7}’|sort -n|uniq -c|sort -nr|head -20
8.統計網站流量(G)
cat access.log |awk ‘{sum+=$10} END {print sum/1024/1024/1024}’
9.統計404的串連
awk ‘($9 ~/404/)’ access.log | awk ‘{print $9,$7}’ | sort
10. 統計http status.
cat access.log |awk ‘{counts[$(9)]+=1}; END {for(code in counts) print code, counts}’
cat access.log |awk ‘{print $9}’|sort|uniq -c|sort -rn
11.每秒並發:
awk ‘{if($9~/200|30|404/)COUNT[$4]++}END{for( a in COUNT) print a,COUNT[a]}’|sort -k 2 -nr|head -n10
12.頻寬統計
cat apache.log |awk ‘{if($7~/GET/) count++}END{print “client_request=”count}’
cat apache.log |awk ‘{BYTE+=$11}END{print “client_kbyte_out=”BYTE/1024″KB”}’
13.統計對象數量及對象平均大小
cat access.log |awk ‘{byte+=$10}END{ print byte/NR/1024,NR}’
cat access.log |awk ‘{if($9~/200|30/)COUNT[$NF]++}END{for( a in COUNT) print a,COUNT
[a],NR,COUNT[a]/NR*100″%”}
14.取5分鐘日誌
if [ $DATE_MINUTE != $DATE_END_MINUTE ] ;then #則判斷開始時間戳與結束時間戳記是否相等START_LINE=`sed -n “/$DATE_MINUTE/=” $APACHE_LOG|head -n1` #如果不相等,則取出開始時間戳的行號,與結束時間戳記的行號
#END_LINE=`sed -n “/$DATE_END_MINUTE/=” $APACHE_LOG|tail -n1`
END_LINE=`sed -n “/$DATE_END_MINUTE/=” $APACHE_LOG|head -n1`sed -n “${START_LINE},${END_LINE}p” $APACHE_LOG > $MINUTE_LOG ##通過行號,取出5分鐘內的日誌內容 存放到 臨時檔案中
GET_START_TIME=`sed -n “${START_LINE}p” $APACHE_LOG|awk -F ‘[‘ ‘{print $2}‘ |awk ‘{print $1}‘|
sed ‘s#/# #g‘|sed ‘s#:# #‘` #通過行號擷取取出開始時間戳
GET_END_TIME=`sed -n "${END_LINE}p" $APACHE_LOG|awk -F ‘[‘ ‘{print $2}‘ |awk ‘{print $1}‘|sed
‘s#/# #g‘|sed ‘s#:# #‘` #通過行號擷取結束時間戳記
15.蜘蛛分析
查看是哪些蜘蛛在抓取內容
/usr/sbin/tcpdump -i eth0 -l -s 0 -w - dst port 80 | strings | grep -i user-agent | grep -i -E ‘bot|crawler|slurp|spider‘
網站日分析2(Squid篇)
2.按域統計流量
zcat squid_access.log.tar.gz| awk ‘{print $10,$7}‘ |awk ‘BEGIN{FS="[ /]“}{trfc[$4]+=$1}END{for
(domain in trfc){printf “%st%dn”,domain,trfc[domain]}}’