{"id":104,"date":"2014-06-25T02:03:16","date_gmt":"2014-06-25T02:03:16","guid":{"rendered":"http:\/\/ixyzero.com\/blog\/?p=104"},"modified":"2014-06-25T02:03:16","modified_gmt":"2014-06-25T02:03:16","slug":"%e6%88%91%e7%9a%84linux%e6%8a%80%e5%b7%a7or%e7%9f%a5%e8%af%86%e6%94%b6%e9%9b%86-%e5%ba%94%e7%94%a8","status":"publish","type":"post","link":"https:\/\/ixyzero.com\/blog\/archives\/104.html","title":{"rendered":"\u6211\u7684Linux\u6280\u5de7or\u77e5\u8bc6\u6536\u96c6-\u5e94\u7528"},"content":{"rendered":"
\u5728Linux\u670d\u52a1\u5668\u4e2d\u5982\u4f55\u627e\u51fa\u5927\u6587\u4ef6<\/h6>\n

\u67e5\u627e\u6839\u76ee\u5f55\u4e0b\uff08\u7cfb\u7edf\u4e2d\uff09\u5927\u4e8e50M\u7684\u6587\u4ef6\uff1a<\/p>\n

find \/ -type f -size +50000k -exec ls -lh {} ;<\/pre>\n
\u67e5\u627e\/var\/log\u76ee\u5f55\u4e0b\u5927\u4e8e100M\u7684\u6587\u4ef6\uff1a<\/p>\n
find \/var\/log -type f -size +100000k -exec ls -lh {} ; | awk '{ print $9 \": \" $5 }'<\/pre>\n
Perl \u6280\u5de7: \u663e\u793a\u5927\u6587\u4ef6<\/h6>\n
#\u4f9d\u636e\u6587\u4ef6\u5927\u5c0f\u4ece\u5c0f\u5230\u5927\u663e\u793a\u5f53\u524d\u76ee\u5f55\u4e0b\u6bcf\u4e2a\u76ee\u5f55\u7684\u5360\u7528\u7684\u60c5\u51b5(\u6ce8\uff1a\u661f\u53f7\u548c\u661f\u53f7\u7684\u957f\u5ea6)\ndu -k | sort -n | perl -ne 'if ( \/^(d+)s+(.*$)\/){$l=log($1+.1);$m=int($l\/log(1024)); printf (\"%6.1ft%st%25s %sn\",($1\/(2**(10*$m))),((\"K\",\"M\",\"G\",\"T\",\"P\")[$m]),\"*\"x (1.5*$l),$2);}'<\/pre>\n
ls \u547d\u4ee4\uff1a\u5728\u76ee\u5f55\u4e2d\u627e\u51fa\u6700\u5927\u7684\u6587\u4ef6{-S :sort by file size}<\/h6>\n
$ ls -lS
\n$ ls -lS | less
\n$ ls -lS | head +10<\/p>\n
ls \u547d\u4ee4\uff1a\u5728\u76ee\u5f55\u4e2d\u627e\u51fa\u6700\u5c0f\u7684\u6587\u4ef6{-r :reverse order while sorting}<\/h6>\n
$ ls -lSr
\n$ ls -lSr | less
\n$ ls -lSr | tail -10<\/p>\n
\u5982\u679c\u4f60\u60f3\u8981\u4e00\u4e2a\u57fa\u4e8e\u6587\u4ef6\u5927\u5c0f\u6392\u5e8f\u7684\u6587\u4ef6\u5217\u8868\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u7684\u547d\u4ee4\uff08\u5b83\u4f1a\u4ee5\u9012\u51cf\u987a\u5e8f\u6392\u5217\u6587\u4ef6\uff09\uff1a<\/h6>\n
# ls -l | grep ^- | sort -nr -k 5 | more<\/p>\n
\u9012\u5f52\u67e5\u8be2\uff1a<\/h6>\n
# ls -lR | grep ^- | sort -nr -k 5 | more<\/p>\n
grep\u547d\u4ee4\u7684\u4e00\u4e9b\u5e38\u7528\u9009\u9879<\/h6>\n
grep -l \/ -i \/ -v \/ -n \/ -c \/ -r\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0#\u8fd9\u5e94\u8be5\u662fgrep\u6700\u5e38\u4f1a\u7528\u5230\u7684\u9009\u9879\u4e86\uff0c\u5e73\u65f6\u591a\u7528\u7528\u591a\u5b9e\u8df5\u5c31\u4f1a\u7406\u89e3\u4e86<\/p>\n
grep -E ‘219|216’ data.doc #\u4f7f\u7528\u6269\u5c55\u6a21\u5f0f\u5339\u914d<\/p>\n
grep -n “48” data.doc \u00a0\u00a0\u00a0\u00a0 #\u663e\u793a\u6240\u6709\u5339\u914d48\u7684\u884c\u548c\u884c\u53f7\uff08\u82e5\u4e3a\u591a\u6587\u4ef6\u5339\u914d\u8fd8\u4f1a\u663e\u793a\u6587\u4ef6\u540d\uff09\uff08-n\u9009\u9879\u663e\u793a\u5339\u914d\u884c\u5bf9\u5e94\u7684\u884c\u53f7\uff09<\/p>\n
grep -c “48” data.doc\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0#\u8f93\u51fa\u6587\u6863\u4e2d\u542b\u670948\u5b57\u7b26\u7684\u884c\u6570<\/p>\n
$ dmesg
\n$ vim \/var\/log\/dmesg<\/p>\n
curl ifconfig.me<\/span>\u00a0\u00a0 \u00a0#\u8fd9\u662f\u4e2a\u597d\u4e1c\u897f\uff01\u7528\u4e8e\u65b9\u4fbf\u7684\u4ece\u547d\u4ee4\u884c\u4e0a\u83b7\u53d6\u672c\u673a\u7684\u5916\u7f51IP<\/p>\n
curl\u00a0http:\/\/ipecho.net\/plain<\/span>\u00a0 \u00a0 \u00a0\u00a0#\u4e5f\u662f\u7528\u4e8e\u83b7\u53d6\u672c\u673a\u7684\u5916\u7f51IP<\/p>\n
Vim\u4e2d\u7684 “Esc\u952e” \u53ef\u4ee5\u7528 “Ctrl – C” \u8fdb\u884c\u529f\u80fd\u6027\u66ff\u4ee3<\/span><\/p>\n
\u8bb0\u5f55\u5e76\u56de\u653e\u7ec8\u7aef\u4f1a\u8bdd{script\u548cscriptreplay\u547d\u4ee4}<\/h5>\n
\u8fd9\u5728\u4f7f\u7528\u7ec8\u7aef\u5236\u4f5c\u6559\u7a0b\u65f6\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n
\u8981\u5f00\u59cb\u8bb0\u5f55\u4f60\u7684\u7ec8\u7aef\u4f1a\u8bdd\uff0c\u4f7f\u7528\u4e0b\u9762\u7684\u547d\u4ee4\uff1a<\/p>\n
$ script -t 2>timing.log -a output.session<\/pre>\n
\u63a5\u7740\u8f93\u5165\uff1a
\n$ ls
\n$ touch test
\n……
\n……
\n$ exit
\n\u8fd9\u91cc\uff0cscript\u547d\u4ee4\u53d6\u4e24\u4e2a\u6587\u4ef6\u4f5c\u4e3a\u53c2\u6570timing.log(\u5b83\u8bb0\u5f55\u4e86\u6bcf\u4e2a\u547d\u4ee4\u6267\u884c\u7684\u65f6\u95f4\u4fe1\u606f)\u548coutput.session(\u5b58\u50a8\u4e86\u547d\u4ee4\u7684\u8f93\u51fa)\u3002<\/p>\n
\u73b0\u5728\uff0c\u8981\u56de\u653e\u8bb0\u5f55\u7684\u4f1a\u8bdd\uff0c\u4f7f\u7528\u4e0b\u9762\u6240\u793a\u7684scriptplay\u547d\u4ee4\uff1a<\/p>\n
$ scriptreplay timing.log output.session<\/pre>\n
\u6ce8\uff1atiming.log\u548coutput.session\u53ef\u4ee5\u88ab\u4efb\u4f55\u60f3\u8981\u5728\u81ea\u5df1\u7684\u7ec8\u7aef\u4e0a\u91cd\u653e\u4f1a\u8bdd\u7684\u4eba\u4f7f\u7528\u3002<\/p>\n
\u600e\u6837\u53bb\u6389\u6587\u4ef6\u4e2d\u7684 ^M<\/h4>\n
sed ‘%s\/^M\/\/g’<\/p>\n
# ^M\u600e\u4e48\u8f93\u7684\uff0c\u8be5\u662f\u7ec4\u5408\u952ectrl+v\u52a0ctrl+m<\/p>\n
# ^M\u662f\u5148\u7ec4\u5408\u952ecrtl+v,\u7136\u540e\u6309\u56de\u8f66\u5c31\u884c\u4e86<\/p>\n
# \u540c\u6837\u529f\u80fd\u952e ^[ \u662f\u5148crtl+v,\u7136\u540e\u6309Esc\u952e<\/p>\n
\u5982\u4f55\u5728vim\u4e2d\u5220\u9664\u7a7a\u884c<\/h4>\n
\u5220\u9664\u7a7a\u884c “:g\/^$\/d”<\/p>\n
\u5220\u9664\u6240\u6709\u7a7a\u767d\u884c(^\u662f\u884c\u7684\u5f00\u59cb\uff0cs*\u662f\u96f6\u4e2a\u6216\u8005\u591a\u4e2a\u7a7a\u767d\u5b57\u7b26\uff1b$\u662f\u884c\u5c3e) :g\/^s*$\/d<\/p>\n
Sed\u5220\u9664\u7a7a\u884c<\/h4>\n
sed ‘\/^$\/d’<\/p>\n
sed \/^[[:space:]]*$\/d<\/p>\n
sed \/^s*$\/d<\/p>\n
Sed\u5220\u9664\u884c\u9996\u3001\u884c\u5c3e\u7684\u7a7a\u683c<\/h4>\n
sed ‘s\/^[[:space:]]*\/\/g’<\/p>\n
sed ‘s\/[[:space:]]*$\/\/g’<\/p>\n
\u7528tr\u547d\u4ee4<\/h4>\n
tr -s ‘n’<\/p>\n
awk ‘{if($0!=””)print}’<\/p>\n
awk ‘{if(length !=0) print $0}’<\/p>\n
grep -v ^$ file \u00a0 #grep\u53ea\u5c06\u6587\u4ef6file\u4e2d\u7684\u975e\u7a7a\u884c\u663e\u793a\u51fa\u6765<\/p>\n
grep . file \u00a0 \u00a0 \u00a0 #\u548c\u4e0a\u9762\u7684\u6548\u679c\u4e00\u6837\uff0c\u4f46\u989c\u8272\u548c\u63d0\u793a\u7b26\u76f8\u540c<\/p>\n
awk NF file<\/p>\n
awk ‘!\/^$\/’ file<\/p>\n
tr -s “n”<\/p>\n
# locate ncrack #\u53ef\u4ee5\u627e\u5230\u4e0d\u5c11\u7528\u6237\u540d\u548c\u5bc6\u7801\u7684\u5b57\u5178\uff0c\u7b97\u662f\u4e2a\u798f\u5229\u5427\uff01<\/p>\n
# locate brute #\u597d\u591a\u597d\u4e1c\u897f\uff0c\u6211\u624d\u77e5\u9053nmap\u7684script\u653e\u5728\u54ea\u4e86<\/p>\n
\u5982\u4f55\u77e5\u9053Medusa\u6709\u54ea\u4e9b\u6a21\u5757\uff0c\u4ece\u800c\u5728\u6267\u884c\u547d\u4ee4\u65f6\u4f7f\u7528-M\u6765\u6307\u5b9a<\/p>\n
locate medusa<\/p>\n
medusa -d<\/p>\n
shell\u811a\u672c:\u4e00\u6b21\u8bfb\u53d6\u6587\u4ef6\u7684\u4e00\u884c\uff0c\u5e76\u8f93\u51fa<\/p>\n
\u5199\u6cd5\u4e00:<\/p>\n
#!\/bin\/bash\n\nwhile read line\ndo\n\u00a0 \u00a0 \u00a0 echo $line \u00a0 \u00a0 #\u8fd9\u91cc\u53ef\u6839\u636e\u5b9e\u9645\u7528\u9014\u53d8\u5316\n\ndone < urfile<\/pre>\n
\u5199\u6cd5\u4e8c:<\/p>\n
#!\/bin\/bash\n\ncat urfile | while read line\ndo\n\u00a0 \u00a0 echo $line\ndone<\/pre>\n
 <\/p>\n
find . -size 0 -exec {} ; #\u5220\u9664\u5f53\u524d\u6587\u4ef6\u5939\u4e0b\u5927\u5c0f\u4e3a0\u7684\u6587\u4ef6<\/p>\n
Vim_skills<\/h4>\n
:w !sudo tee % \u00a0 \u00a0#\u4fdd\u5b58\u5bf9\u201c\u53ea\u8bfb\u6587\u4ef6\u201d\u7684\u4fee\u6539<\/p>\n
:e! #\u5728Vim\u4e2d\u91cd\u65b0\u7f16\u8f91\u5f53\u524d\u6587\u4ef6\uff0c\u5ffd\u7565\u4e4b\u524d\u6240\u6709\u7684\u4fee\u6539<\/p>\n
:r! Command #\u5c06\u547d\u4ee4 Command \u7684\u8f93\u51fa\u7ed3\u679c\u63d2\u5165\u5230\u5f53\u524d\u884c<\/p>\n
:r filename #\u5728\u5149\u6807\u6240\u5728\u5904\u63d2\u5165\u6587\u4ef6filename\u7684\u5185\u5bb9<\/p>\n
:%!xxd #\u4ee5\u5341\u516d\u8fdb\u5236\u67e5\u770b<\/p>\n
:%!xxd -r #\u4ece\u5341\u516d\u8fdb\u5236\u8fd4\u56de<\/p>\n
:n1,n2 w filename #\u5c06 n1 \u884c\u5230 n2 \u884c\u4e4b\u95f4\u7684\u5185\u5bb9\u4fdd\u5b58\u5230\u6587\u4ef6 filename \u4e2d<\/p>\n
\u4ee5root\u7528\u6237\u8fd0\u884cLinux\u4e0a\u7684\u8f6f\u4ef6<\/h4>\n
\u4f5c\u4e3a\u4e00\u540droot\u7528\u6237\uff0c\u4e3a\u4e86\u8ba9\u67d0\u4e9b\u4e0d\u80fd\u5728root\u8eab\u4efd\u8fd0\u884c\u7684\u8f6f\u4ef6\u8fd0\u884c\uff08\u8bd1\u6ce8\uff1a\u5178\u578b\u7684\u662fGoogle chrome\uff09\uff0c\u4f60\u9700\u8981\u5728\u8f6f\u4ef6\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\u4e2d\u6539\u53d8geteuid\u8c03\u7528\u4e3agetppid<\/span><\/strong>\u3002<\/p>\n
\u8fd9\u4e2a\u6280\u672f\u5728\u67d0\u4e9b\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u975e\u5e38\u6709\u7528\uff0c\u6bd4\u5982BackTrack\/Kali\uff0c\u8fd9\u91cc\u7684\u5927\u591a\u6570\u5b89\u88c5\u5de5\u4f5c\u90fd\u4ee5root\u7528\u6237\u5b8c\u6210\u3002<\/p>\n
\u6bd4\u5982:\u4e3a\u4e86\u4ee5root\u7528\u6237\u8fd0\u884cGoogle Chrome\uff0c\u4f7f\u7528\u4e0b\u9762\u7684\u547d\u4ee4:<\/p>\n
# hexedit \/opt\/google\/chome\/chrome<\/pre>\n
\u63a5\u7740\u6309\u4e0b Ctrl+S<\/strong>\u00a0\u572816\u8fdb\u5236\u8f6c\u50a8\u6587\u4ef6\u4e2d\u641c\u5bfbgeteuid\u5b57\u7b26\u4e32<\/strong>\u3002\u7528\u5b57\u7b26\u4e32getppid\u4ee3\u66ff\u3002<\/strong><\/span>\u6309\u4e0b\u00a0Ctrl+X\u00a0<\/strong>\u6765\u4fdd\u5b58\u5e76\u9000\u51fa\u7f16\u8f91\u5668\u3002<\/p>\n
\u73b0\u5728\u6d4f\u89c8\u5668\u5c31\u53ef\u4ee5\u4ee5root\u7528\u6237\u8fd0\u884c\u4e86\u3002
\n# google-chrome<\/p>\n
\u2014Mayank Bhanderi, mbhanderi24@gmail.com<\/p>\n
Linux\u7684Shell\u91cc\u9762\u751f\u6210\u968f\u673a\u6570\u7684\u4e00\u4e9b\u601d\u8def<\/h4>\n
1.\u4f7f\u7528\u65f6\u95f4\u76f8\u5173\u7684\u968f\u673a\u6570<\/h6>\n
\u5229\u7528date\u547d\u4ee4\u751f\u6210\u8f93\u51faunixtimestamp(%s)\u548c\u5f53\u524d\u65f6\u95f4\u7684\u7eb3\u79d2\u6570\u636e(%N\uff0c\u7cbe\u786e\u5230\u4ebf\u5206\u4e4b\u4e00\u79d2)
\n\u524d\u8005\u4fdd\u8bc1\u5728\u4e0d\u540c\u79d2\u6570\u65f6\u7684\u8f93\u51fa\u4e0d\u91cd\u590d\uff0c\u540e\u8005\u4fdd\u8bc1\u5728\u540c\u4e00\u79d2\u5185\u6570\u5b57\uff08\u5fae\u79d2\uff09\u4e0d\u91cd\u590d\uff0c\u6240\u4ee5\u4e24\u8005\u7ec4\u5408\u4e00\u4e0b\u5c31\u53ef\u4ee5\u4e86
\n%s seconds since 1970-01-0# 00:00:00 UTC
\n%N nanoseconds (000000000..999999999)<\/p>\n
# date +%s%N
\n\u8fd9\u4e2a\u65b9\u6cd5\u4e0d\u4f9d\u8d56\u7cfb\u7edf\uff1a\u53ea\u8981\u65f6\u95f4\u4e0d\u505c\u6b62\uff0c\u5c31\u4e00\u76f4\u53ef\u4ee5\u5f97\u5230\u4e0d\u91cd\u590d\u7684\u4e3a\u968f\u673a\u6570\u3002<\/p>\n
2.\u7cfb\u7edfshell\u5185\u90e8\u53d8\u91cf $RANDOM<\/h6>\n
\u8fd9\u4e48\u6ca1\u5565\u597d\u8bf4\u7684\uff0c\u4f9d\u8d56shell\u3002<\/p>\n
3.\u901a\u8fc7Linux\u7684\u968f\u673a\u8bbe\u5907\u83b7\u53d6\uff0c\u7136\u540e\u7b97\u6821\u9a8c\u548c\uff08\u8ba1\u7b97\u6821\u9a8c\u548c\u8fd9\u4e2a\u8fd8\u771f\u7684\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\uff0c\u5426\u5219\u6709\u4e71\u7801o(\u256f\u25a1\u2570)o\uff09<\/h6>\n
# head -10 \/dev\/urandom | cksum
\n\u6ce8\u610f\u8fd9\u91cc\u5343\u4e07\u4e0d\u8981\u4f7f\u7528cat\u53bb\u83b7\u53d6\uff0c\u56e0\u4e3a\u8fd9\u4e2a\u662f\u4e00\u6761\u6ca1\u6709\u5c3d\u5934\u7684\u8def\uff0c\u83b7\u53d61\u884c\u548c10\u884c\u6ca1\u6709\u592a\u5927\u7684\u533a\u522b\uff0c\u8fd9\u4e2a\u5404\u81ea\u770b\u7740\u529e\u5427\uff01<\/p>\n
4.\u901a\u8fc7Linux\u7684\u5185\u6838\u7684UUID\u83b7\u53d6<\/h6>\n
UUID\u7684\u8ba1\u7b97\u4fe1\u606f\u4f1a\u52a0\u5165\u786c\u4ef6\uff0c\u65f6\u95f4\uff0c\u673a\u5668\u5f53\u524d\u8fd0\u884c\u4fe1\u606f\u7b49\uff0c\u53ef\u4ee5\u4fdd\u8bc1\u751f\u6210\u7684\u90fd\u662f\u5168\u7403\u552f\u4e00\u7684\uff0c\u65b9\u6cd5\u6bd4\u8f83\u76f4\u63a5\uff1a
\n# cat \/proc\/sys\/kernel\/random\/uuid
\n\u5c31\u53ef\u4ee5 \u7136\u540e\u5728\u7b97\u6821\u9a8c\u548c\u8f6c\u6362\u4e3a\u6570\u5b57\u5373\u53ef\uff0c\u4f46\u662f\u4f9d\u8d56Linux\u5185\u6838\u3002<\/p>\n
\u5982\u4e0a4\u79cd\u601d\u8def\uff0c\u4ec5\u4f9b\u53c2\u8003\u3002<\/p>\n
\u53c2\u8003\u5730\u5740\uff1aLinux\u7684Shell\u91cc\u9762\u751f\u6210\u968f\u673a\u6570\u7684\u4e00\u4e9b\u601d\u8def<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
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