ip\u9ed1\u540d\u5355\u67e5\u8be2\uff1ahttp:\/\/whatismyipaddress.com\/blacklist-check
\u547d\u4ee4\u884c\u8f93\u5165nslookup -qt=ptr yourIP\uff0c\u67e5\u770b\u53cd\u5411\u89e3\u6790\u7684\u7ed3\u679c<\/p>\n
\u5220\u9664\u5f53\u524d\u76ee\u5f55\u53ca\u5b50\u76ee\u5f55\u4e0b\u76840\u5b57\u8282\u6587\u4ef6
find -type f -size 0 -exec rm -rf {} \\;<\/p>\n
last -n 10
\/usr\/local\/nginx\/sbin\/nginx -s reload
\u91cd\u542fphp-fpm\uff1a\/etc\/init.d\/php-fpm restart
\/root\/lnmp reload
vi \/usr\/local\/nginx\/conf\/nginx.conf
\/root\/vhost.sh
find \/ -name XXX.XX
find \/dir -name \u2018*XXX*\u2019
\u67e5\u627e\uff1a30\u5929\u5185\u88ab\u4fee\u6539\u7684\u6587\u4ef6
find .\/ -mtime -30 -type f -exec ls -l {} \\;
\u627e\u5230\u76ee\u5f55\u4e0b\u6240\u6709\u7684txt\u6587\u4ef6
find .\/ -name “*.txt” -print
\u627e\u5230\u76ee\u5f55\u4e0b\u6240\u6709\u7684txt\u6587\u4ef6\u5e76\u5220\u9664
find .\/ -name “*.txt” -exec rm -rf {} \\;
\u627e\u5230\u76ee\u5f55\u4e0b\u6240\u6709\u7684php\u6587\u4ef6 \u5e76\u4e14\u572830\u5929\u4e4b\u7c7b\u88ab\u4fee\u6539\u7684\u6587\u4ef6
find .\/ -name “*.php” -mtime -30 -typef -exec ls -l {} \\;
\u627e\u5230\u76ee\u5f55\u4e0b\u6240\u6709\u7684php\u6587\u4ef6\uff0c\u540c\u65f6\uff0c\u6ee1\u8db3 30\u5929\u4ee5\u5185\uff0c1\u5929\u4e4b\u524d\u7684
find .\/ -name “*.php” -mtime -30 -mtime +1 -type f -execls -l {} \\;tar xzvf\u00a0 *.tar.gz\u00a0\u00a0\u00a0\u00a0 |\u89e3\u538b\u7f29
tar czvf\u00a0 *.tar.gz\u00a0 *\u00a0\u00a0 |\u6253\u5305\u538b\u7f29
uname -a \u4f5c\u7528\uff1a \u67e5\u770b\u7cfb\u7edf\u5185\u6838\u7248\u672c\u53f7\u53ca\u7cfb\u7edf\u540d\u79f0
rm [options] name\u2026 -i \u5220\u9664\u524d\u9010\u4e00\u8be2\u95ee\u786e\u8ba4\u3002 -f \u5373\u4f7f\u539f\u6863\u6848\u5c5e\u6027\u8bbe\u4e3a\u552f\u8bfb\uff0c\u4ea6\u76f4\u63a5\u5220\u9664\uff0c\u65e0\u9700\u9010\u4e00\u786e\u8ba4\u3002 -r \u5c06\u76ee\u5f55\u53ca\u4ee5\u4e0b\u4e4b\u6863\u6848\u4ea6\u9010\u4e00\u5220\u9664\u3002
ps aux
ps aux | less
top -c
\u67e5\u770b\u7cfb\u7edf\u7248\u672c:
lsb_release -a
cat \/etc\/xxx-release XX\u4e3a\u53d1\u884c\u7248\u540d\u79f0\u3002\u5982 cat \/etc\/centos-release \u6216\u8005 cat \/etc\/redhat-release
cat \/etc\/issue
cat \/proc\/version
uname -a
yum info
\u5185\u5b58\uff1a
cat \/proc\/meminfo
CPU\u4fe1\u606f\uff1a
cat \/proc\/cpuinfo
\u786c\u76d8\u4fe1\u606f\uff1a
df -lh
\u786c\u76d8I\/O\u6d4b\u8bd5\uff1a\uff08\u591a\u6b21\u6d4b\u8bd5\uff0c\u53d6\u76f8\u8fd1\u503c\u3002\u4f4e\u4e8e10MB\/s \u5e94\u8be5\u662f\u77f3\u5934\uff09
dd if=\/dev\/zero of=test bs=64k count=4k oflag=dsync
\u5165\u53e3\u5e26\u5bbd\u6d4b\u8bd5\uff1a\uff08\u591a\u6b21\u6d4b\u8bd5\uff0c\u53d6\u76f8\u8fd1\u503c\uff09
wget http:\/\/cachefly.cachefly.net\/100mb.test
##\u8dd1\u5206\u6d4b\u8bd5\uff0c\u603b\u5206\uff08\u4f4e\u4e8e400\u6027\u80fd\u5dee\uff0c400-800\u6b63\u5e38\uff0c1000\u4ee5\u4e0a\u4f18\u79c0\uff09
wget http:\/\/www.CTOHome.com\/linux-vps-pack\/unixbench.sh sh
.\/unixbench.sh
\u5b9e\u65f6\u4fe1\u606f\uff1a
top
chown [-cfhvR] [–help] [–version] user[:group] file\u2026 user : \u65b0\u7684\u6863\u6848\u62e5\u6709\u8005\u7684\u4f7f\u7528\u8005 ID \u3000\u3000group : \u65b0\u7684\u6863\u6848\u62e5\u6709\u8005\u7684\u4f7f\u7528\u8005\u7fa4\u4f53(group) \u3000\u3000-c : \u82e5\u8be5\u6863\u6848\u62e5\u6709\u8005\u786e\u5b9e\u5df2\u7ecf\u66f4\u6539\uff0c\u624d\u663e\u793a\u5176\u66f4\u6539\u52a8\u4f5c \u3000\u3000-f : \u82e5\u8be5\u6863\u6848\u62e5\u6709\u8005\u65e0\u6cd5\u88ab\u66f4\u6539\u4e5f\u4e0d\u8981\u663e\u793a\u9519\u8bef\u8baf\u606f \u3000\u3000-h : \u53ea\u5bf9\u4e8e\u8fde\u7ed3(link)\u8fdb\u884c\u53d8\u66f4\uff0c\u800c\u975e\u8be5 link \u771f\u6b63\u6307\u5411\u7684\u6863\u6848 \u3000\u3000-v : \u663e\u793a\u62e5\u6709\u8005\u53d8\u66f4\u7684\u8be6\u7ec6\u8d44\u6599 \u3000\u3000-R : \u5bf9\u76ee\u524d\u76ee\u5f55\u4e0b\u7684\u6240\u6709\u6863\u6848\u4e0e\u5b50\u76ee\u5f55\u8fdb\u884c\u76f8\u540c\u7684\u62e5\u6709\u8005\u53d8\u66f4(\u5373\u4ee5\u9012\u56de\u7684\u65b9\u5f0f\u9010\u4e2a\u53d8\u66f4) \u3000\u3000\u2013help : \u663e\u793a\u8f85\u52a9\u8bf4\u660e \u3000\u3000\u2013version : \u663e\u793a\u7248\u672c
[-cfhvR] [–help] [–version] user[:group] file \u6bd4\u5982 chown chown root \/home \u628a\/home\u7684\u5c5e\u4e3b\u6539\u6210root\u7528\u6237\u4f7f\u7528\u6743\u9650 : root Linux\/Unix \u662f\u591a\u4eba\u591a\u5de5\u4f5c\u4e1a\u7cfb\u7edf\uff0c\u6240\u6709\u7684\u6863\u6848\u7686\u6709\u62e5\u6709\u8005\u3002\u5229\u7528 chown \u53ef\u4ee5\u5c06\u6863\u6848\u7684\u62e5\u6709\u8005\u52a0\u4ee5\u6539\u53d8\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u8fd9\u4e2a\u6307\u4ee4\u53ea\u6709\u662f\u7531\u7cfb\u7edf\u7ba1\u7406\u8005(root)\u6240\u4f7f\u7528\uff0c\u4e00\u822c\u4f7f\u7528\u8005\u6ca1\u6709\u6743\u9650\u53ef\u4ee5\u6539\u53d8\u522b\u4eba\u7684\u6863\u6848\u62e5\u6709\u8005\uff0c\u4e5f\u6ca1\u6709\u6743\u9650\u53ef\u4ee5\u5c06\u81ea\u5df1\u7684\u6863\u6848\u62e5\u6709\u8005\u6539\u8bbe\u4e3a\u522b\u4eba\u3002\u53ea\u6709\u7cfb\u7edf\u7ba1\u7406\u8005(root)\u624d\u6709\u8fd9\u6837\u7684\u6743\u9650 user : \u65b0\u7684\u6863\u6848\u62e5\u6709\u8005\u7684\u4f7f\u7528\u8005 ID\u3000\u3000group : \u65b0\u7684\u6863\u6848\u62e5\u6709\u8005\u7684\u4f7f\u7528\u8005\u7fa4\u4f53(group)\u3000\u3000-c : \u82e5\u8be5\u6863\u6848\u62e5\u6709\u8005\u786e\u5b9e\u5df2\u7ecf\u66f4\u6539\uff0c\u624d\u663e\u793a\u5176\u66f4\u6539\u52a8\u4f5c\u3000\u3000-f : \u82e5\u8be5\u6863\u6848\u62e5\u6709\u8005\u65e0\u6cd5\u88ab\u66f4\u6539\u4e5f\u4e0d\u8981\u663e\u793a\u9519\u8bef\u8baf\u606f\u3000\u3000-h : \u53ea\u5bf9\u4e8e\u8fde\u7ed3(link)\u8fdb\u884c\u53d8\u66f4\uff0c\u800c\u975e\u8be5 link \u771f\u6b63\u6307\u5411\u7684\u6863\u6848\u3000\u3000-v : \u663e\u793a\u62e5\u6709\u8005\u53d8\u66f4\u7684\u8be6\u7ec6\u8d44\u6599\u3000\u3000-R : \u5bf9\u76ee\u524d\u76ee\u5f55\u4e0b\u7684\u6240\u6709\u6863\u6848\u4e0e\u5b50\u76ee\u5f55\u8fdb\u884c\u76f8\u540c\u7684\u62e5\u6709\u8005\u53d8\u66f4(\u5373\u4ee5\u9012\u56de\u7684\u65b9\u5f0f\u9010\u4e2a\u53d8\u66f4)\u3000\u3000\u2013help : \u663e\u793a\u8f85\u52a9\u8bf4\u660e\u3000\u3000\u2013version : \u663e\u793a\u7248\u672c<\/p>\n
\u6709\u7528\u6237\u53ef\u80fd\u627e\u4e0d\u5230\u9009\u62e9\u76ee\u5f55\u7684\u5730\u65b9\uff0c\u9009\u76ee\u5f55\u662f\u70b9\u51fb\u201d\u4e3b\u76ee\u5f55\u201c \u6700\u540e\u9762\u6709\u4e2a\u5706\u5f62\u5957\u7740\u4e09\u89d2\u5f62\u7684\u56fe\u6807\uff0c\u70b9\u4e00\u4e0b\u5c31\u4f1a\u51fa\u6765\u3002 \u5982\u679c\u662fLNMPA\u6216LAMP\u7684\u8bdd\u9700\u8981\u4fee\u6539\/usr\/local\/apache\/conf\/extra\/httpd-vhosts.conf\u91cc\u9762\u7684php_admin_value open_basedir\u5728\u8be5\u884c\u524d\u9762\u52a0#\u76f4\u63a5\u6ce8\u91ca\u3002<\/p>\n debian\u4e0b GD\u5e93\u7684\u5b89\u88c5 \u4f7f\u7528\u201cfdisk -l\u201d\u547d\u4ee4\u67e5\u770b\u6570\u636e\u76d8\u76f8\u5173\u4fe1\u606f\u3002 yum install nginx Linux\u4e0b\u67e5\u770b\u7cfb\u7edf\u542f\u52a8\u65f6\u95f4 # more \/var\/log\/messages \uff08\u68c0\u67e5\u6709\u65e0\u7cfb\u7edf\u7ea7\u9519\u8bef\u4fe1\u606f\uff09 # ntsysv ntsysv\uff1a\u7c7b\u56fe\u5f62\u754c\u9762\u7ba1\u7406\u6a21\u5f0f\u6765\u8bbe\u7f6e\u5f00\u673a\u542f\u52a8\u3002\uff08RedHat\u7279\u6709\u7684\uff0c\u57fa\u672c\u4e0achkconfig\u5c31\u5f88\u597d\u7528\u4e86\u3002\uff09<\/p>\n cat \/etc\/passwd \u53ef\u4ee5\u67e5\u770b\u6240\u6709\u7528\u6237\u7684\u5217\u8868 \u52a0\u56fassh\u5b89\u5168\u767b\u5f55 \u7f16\u8f91 \/etc\/ssh\/sshd_config \u8fd9\u4e2a\u6587\u4ef6 du -sm * | sort -n \/\/\u7edf\u8ba1\u5f53\u524d\u76ee\u5f55\u5927\u5c0f \u5e76\u5b89\u5927\u5c0f \u6392\u5e8f<\/p>\n du -sh * | sort -n<\/p>\n find -type f -size 0 -exec rm -rf {} \\;<\/p>\n \u67e5\u770b\u6076\u610fip\u8bd5\u56fe\u767b\u5f55\u6b21\u6570\uff1a \u5c4f\u853d\u6076\u610f\u767b\u5f55ip echo “” > \/var\/log\/secure <\/span><\/p>\n \u00a0<\/p>\n \u00a0<\/p>\n \u00a0<\/p>\n \u00a0<\/p>\n \u00a0<\/p>\n\n\n <\/p>\n","protected":false},"excerpt":{"rendered":" ip\u9ed1\u540d\u5355\u67e5\u8be2\uff1ahttp:\/\/whatismyipaddress.com\/blacklist-check\u547d\u4ee4\u884c […]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":["post-314","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.iur.me\/index.php?rest_route=\/wp\/v2\/pages\/314","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iur.me\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.iur.me\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.iur.me\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iur.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=314"}],"version-history":[{"count":0,"href":"https:\/\/www.iur.me\/index.php?rest_route=\/wp\/v2\/pages\/314\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.iur.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=314"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\u5982\u679c\u63d0\u793a\u65e0\u6cd5\u8bfb\u53d6\u76ee\u5f55\u3001\u767b\u9646\u8d85\u65f6\u6216\u62a5502 Bad Gateway\u9519\u8bef\uff0c\u4fee\u6539\/usr\/local\/php\/etc\/php.ini \u67e5\u627eopen_basedir\uff0c\u5c06\u6709\/home\/wwwroot\/default\u7684\u51e0\u884c\u524d\u9762\u52a0;\u6ce8\u91ca\u6389\u3002
LNMP 1.2\u7684\u8bdd\u5728\/home\/wwwroot\/default\/.user.ini\u91cc\u8bbe\u7f6e\uff0c\u5c06\u91cc\u9762\u7684\u5185\u5bb9\u5220\u9664\uff0c\u8fc7\u51e0\u5206\u949f\u751f\u6548\u540e\u5373\u53ef\u3002
.user.ini\u6587\u4ef6\u65e0\u6cd5\u76f4\u63a5\u4fee\u6539\uff0c\u800c\u4e14\u662f\u9690\u85cf\u6587\u4ef6\u53ef\u80fd\u5728winscp\u4e0b\u53ef\u80fd\u65e0\u6cd5\u770b\u5230\uff0c\u5efa\u8bae\u4f7f\u7528vim\u7f16\u8f91\u5668<\/a>\u6216nano\u7f16\u8f91\u5668<\/a>\u8fdb\u884c\u4fee\u6539\u3002
\u4fee\u6539\u524d\u9700\u8981\u6267\u884c\uff1achattr -i \/home\/wwwroot\/default\/.user.ini
\u4fee\u6539\u5b8c\u6210\u540e\u518d\u6267\u884c\uff1achattr +i \/home\/wwwroot\/default\/.user.ini<\/p>\n
apt-get install php5-gd<\/p>\n
\u4f7f\u7528\u201cdf \u2013h\u201d\u547d\u4ee4\uff0c\u65e0\u6cd5\u770b\u5230\u672a\u5206\u533a\u548c\u683c\u5f0f\u5316\u7684\u6570\u636e\u76d8\u3002
\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff0c\u5bf9\u6570\u636e\u76d8\u8fdb\u884c\u5206\u533a\u3002
fdisk \/dev\/xvdb
\u6309\u7167\u754c\u9762\u7684\u63d0\u793a\uff0c\u4f9d\u6b21\u8f93\u5165\u201cn\u201d(\u65b0\u5efa\u5206\u533a)\u3001\u201cp\u201d(\u65b0\u5efa\u6269\u5c55\u5206\u533a)\u3001\u201c1\u201d(\u4f7f\u7528\u7b2c1\u4e2a\u4e3b\u5206\u533a)\uff0c\u4e24\u6b21\u56de\u8f66(\u4f7f\u7528\u9ed8\u8ba4\u914d\u7f6e)\uff0c\u8f93\u5165\u201cwq\u201d(\u4fdd\u5b58\u5206\u533a\u8868)\uff0c\u5f00\u59cb\u5206\u533a\u3002
\u5728\u8fdb\u884c\u5206\u533a\u683c\u5f0f\u5316\u65f6\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u81ea\u884c\u51b3\u5b9a\u6587\u4ef6\u7cfb\u7edf\u7684\u683c\u5f0f\uff0c\u5982ext2\u3001ext3\u7b49\u3002
\u8fd9\u91cc\u4ee5\u201cext3\u201d\u4e3a\u4f8b\uff1a
\u4f7f\u7528\u4e0b\u9762\u7684\u547d\u4ee4\u5bf9\u65b0\u5206\u533a\u8fdb\u884c\u683c\u5f0f\u5316\u3002
mkfs.ext3 \/dev\/xvdb1
\u4f7f\u7528\u547d\u4ee4\u201cmkdir \/mydata\u201d\u521b\u5efamydata\u76ee\u5f55\uff0c\u518d\u901a\u8fc7\u201cmount \/dev\/xvdb1 \/mydata\u201d\u547d\u4ee4\u624b\u52a8\u6302\u8f7d\u65b0\u5206\u533a\u540e\uff0c\u7528\u201cdf -h\u201d\u547d\u4ee4\u67e5\u770b
\u5982\u679c\u5e0c\u671b\u4e91\u670d\u52a1\u5668\u5728\u91cd\u542f\u6216\u5f00\u673a\u65f6\u80fd\u81ea\u52a8\u6302\u8f7d\u6570\u636e\u76d8\uff0c\u5fc5\u987b\u5c06\u5206\u533a\u4fe1\u606f\u6dfb\u52a0\u5230\/ect\/fstab\u4e2d\u3002\u5982\u679c\u6ca1\u6709\u6dfb\u52a0\uff0c\u5219\u4e91\u670d\u52a1\u5668\u91cd\u542f\u6216\u5f00\u673a\u540e\uff0c\u90fd\u4e0d\u80fd\u81ea\u52a8\u6302\u8f7d\u6570\u636e\u76d8\u3002
\u4f7f\u7528\u201cecho ‘\/dev\/xvdb1 \/mydata ext3 defaults 0 0’ >> \/etc\/fstab\u201d\u547d\u4ee4\u6dfb\u52a0\u5206\u533a\u4fe1\u606f\u540e\uff0c\u4f7f\u7528\u201ccat \/etc\/fstab\u201d\u547d\u4ee4\u67e5\u770b<\/p>\n
\u53ef\u901a\u8fc7\u547d\u4ee4 rpm -ql \u67e5\u770b\u8f6f\u4ef6\u5305\u5177\u4f53\u7684\u5b89\u88c5\u76ee\u5f55\u3002
#rpm -ql nginx
\u53ef\u901a\u8fc7\u547d\u4ee4 rpm -q \u67e5\u770b\u8f6f\u4ef6\u5305\u7684\u7248\u672c\u4fe1\u606f\u3002
#rpm -q nginx<\/p>\ndate -d \"$(awk -F. '{print $1}' \/proc\/uptime) second ago\" +\"%Y-%m-%d %H:%M:%S\"<\/code><\/p>\n
# dmesg \uff08\u68c0\u67e5\u786c\u4ef6\u8bbe\u5907\u662f\u5426\u6709\u9519\u8bef\u4fe1\u606f\uff09
# ifconfig\uff08\u68c0\u67e5\u7f51\u5361\u8bbe\u7f6e\u662f\u5426\u6b63\u786e\uff09
# ping www.163.com \uff08\u68c0\u67e5\u7f51\u7edc\u662f\u5426\u6b63\u5e38\uff09
# cat \/proc\/cpuinfo (\u68c0\u67e5CPU\u9891\u7387\u662f\u5426\u6b63\u5e38)
# top (\u63091\u68c0\u6d4bCPU\u6838\u6570\u662f\u5426\u6b63\u5e38\uff0c\u5185\u5b58\u5927\u5c0f\u662f\u5426\u6b63\u5e38)<\/p>\n
\u4ee5\u4e0bPHPCMS\u9700\u8981\u542f\u52a8\u7684\u670d\u52a1\uff1a
atd
crond
irqbalance
microcode_ctl
network
sendmail
sshd
syslog<\/p>\n
w \u53ef\u4ee5\u67e5\u770b\u5f53\u524d\u6d3b\u8dc3\u7684\u7528\u6237\u5217\u8868
cat \/etc\/group \u67e5\u770b\u7528\u6237\u7ec4
\/etc\/shadow
grep bash \/etc\/passwd \u53ef\u4ee5\u5f97\u5230\u6240\u6709\u7684\u666e\u901a\u7528\u6237
who \/var\/log\/wtmp
last
history<\/p>\n
PasswordAuthentication no \u7981\u7528\u5bc6\u7801\u8ba4\u8bc1\u65b9\u5f0f\uff0c\u53ea\u5f00\u542f\u5bc6\u94a5\u8ba4\u8bc1
AllowUsers user1 user2 user3 \u2026 \u8bbe\u7f6e\u5141\u8bb8\u767b\u5f55ssh\u670d\u52a1\u5668\u7684\u7528\u6237
PermitRootLogin no \u7981\u6b62root\u767b\u5f55
MaxAuthTries 3 \u6700\u5927\u767b\u5f55\u5c1d\u8bd5\u6b21\u6570<\/p>\n<\/div>\n<\/div>\n<\/div>\n
lastb | awk \u2018{ print $3}\u2019 | sort | uniq -c | sort -n
\u5220\u9664\u8fd9\u4e2a\u65e5\u5fd7\uff1a
rm -rf \/var\/log\/btmp
touch \/var\/log\/btmp<\/p>\n
iptables -A INPUT -i eth0 -s *.*.*.0\/24 -j DROP<\/p>\n