记录 FreeBSD

./configure -prefix=/usr/local/php -with-config-file-path=/usr/local/php/etc -with-mysql=mysqlnd -with-mysqli=mysqlnd -with-iconv-dir=/usr/local/bin -with-freetype-dir=/usr/local/freetype --with-jpeg-dir=/usr/local/jpeg -with-png-dir=/usr/local/libpng -with-zlib -with-libxml-dir=/usr/local/libxml -enable-xml -disable-rpath -enable-discard-path -enable-safe-mode -enable-bcmath -enable-shmop -enable-sysvsem -enable-inline-optimization -with-curl -with-curlwrappers -enable-mbregex -enable-fastcgi -enable-fpm -enable-force-cgi-redirect -enable-mbstring -enable-mcrypt --with-mcrypt=/usr/local/libmcrypt -with-gd=/usr/local/gd -enable-gd-native-ttf -with-openssl -with-mhash -enable-pcntl -enable-sockets -enable-soap -with-xmlrpc -enable-zip -disable-ipv6 -without-pear -with-iconv=/usr/local/libiconv

make ZEND_EXTRA_LIBS='-liconv' 

shutdown -h now halt

shutdown -h now reboot

/usr/local/bin/memcached -d -m 10  -u root -l 127.0.0.1 -p 11211 -c 256 -P /tmp/memcached.pid 

kill `cat /tmp/memcached.pid`

dmesg 

freebsd 系统状态查看

用以下方法检查系统状态：

   1. Top

   2. netstat -m

   3. pstat -T

   4. systat -if 1

   5. q

 kill -HUP 1

/etc/rc.d/sshd restart

tail /var/log/messages

portsnap fetch extract  第一次更新时用

portsnap fetch update  以后更新时使用

FETCH_CMD=axel

FETCH_BEFORE_ARGS= -n 10 -a

FETCH_AFTER_ARGS=

DISABLE_SIZE=yes

netstat -n | awk '/^tcp/ {++state[$NF]} END {for(key in state) print key,"\t",state[key]}'

netstat -nat|grep -i "80"|wc -l

服务器上的一些统计数据：

1)统计80端口连接数

netstat -nat|grep -i "80"|wc -l

1

2）统计httpd协议连接数

ps -ef|grep nginx|wc -l

ps -ef|grep php-fcgi|wc -l

1

3）、统计已连接上的，状态为“established'

netstat -na|grep ESTABLISHED|wc -l

2

4)、查出哪个IP地址连接最多,将其封了.

netstat -na|grep ESTABLISHED|awk '{print $5}'|awk -F: '{print $1}'|sort|uniq -c|sort -r +0n 

netstat -na|grep FIN_WAIT_1|awk '{print $5}'|awk -F: '{print $1}'|sort|uniq -c|sort -r +0n

netstat -na|awk '{print $5}'| sort | uniq -c | sort -r | awk -F' ' '{if ($1 > 50) print $2}'

netstat快速查看一下TCP连接情况

netstat -n | awk '/^tcp/ {++S[$NF]} END {for(a in S) print a, S[a]}'

通过man netstat可以了解SYN_RCVD的意义。SYN_RCVD表示当前未完成的TCP SYN队列

用命令：

　　# netstat -an | grep SYN | wc -l

$netstat -an | grep SYN_RECV | wc

97     582    7857

$netstat -an | grep 80 | wc

916    5500   74164

SERVERNAME=portsnap.hshh.org

[root@bsd01 ~]# portsnap fetch

[root@bsd01 ~]# portsnap extract

[root@bsd01 ~]# portsnap fetch extract

[root@bsd01 ~]# portsnap fetch

[root@bsd01 ~]# portsnap update

[root@bsd01 ~]# portsnap fetch update