首先停止mysql 

执行service mysqld stop

进入mysql安全模式

mysqld_safe –skip-grant-tables &

use mysql
       UPDATE mysql.user SET password=PASSWORD(‘newpass‘) WHERE user=’root’;
       FLUSH PRIVILEGES;
        quit

/sbin/service mysqld start 重启mysql

即可

yum install pcre-devel

wget http://pecl.php.net/get/APC-3.1.9.tgz
tar zxvf APC-3.1.9.tgz
cd APC-3.1.9/
/usr/bin/phpize
./configure --enable-apc --enable-apc-mmap --with-php-config=/usr/bin/php-config
make
make install

php.ini
查找extension_dir = “/usr/lib/php/modules/”
下面添加extension = apc.so

配置php.ini 末尾加入
apc.enabled = 1
apc.cache_by_default = on
apc.shm_segments = 1
apc.shm_size = 128M
apc.ttl = 600
apc.user_ttl = 600
apc.num_files_hint = 0
apc.write_lock = On

1. wget http://bart.eaccelerator.net/source/0.9.6.1/eaccelerator-0.9.6.1.tar.bz2
2. tar xvfj eaccelerator-0.9.6.1.tar.bz2
3. cd eaccelerator-0.9.6.1
4. /usr/bin/phpize
5. ./configure –enable-eaccelerator=shared –with-php-config=/usr/bin/php-config
6. make
7. make install
8. cd /
9. rm -rf eaccelerator-0.9.6.1
10. rm eaccelerator-0.9.6.1.tar.bz2
11. vi /etc/php.d/eaccelerator.ini
12. OpenVZ
13. extension=”eaccelerator.so”
14. eaccelerator.shm_size=”0″
15. eaccelerator.cache_dir=”/tmp/eaccelerator”
16. eaccelerator.enable=”1″
17. eaccelerator.optimizer=”1″
18. eaccelerator.check_mtime=”1″
19. eaccelerator.debug=”0″
20. eaccelerator.log_file = “/var/log/eaccelerator_log”
21. eaccelerator.filter=”"
22. eaccelerator.shm_max=”0″
23. eaccelerator.shm_ttl=”0″
24. eaccelerator.shm_prune_period=”0″
25. eaccelerator.shm_only=”0″
26. eaccelerator.compress=”1″
27. eaccelerator.compress_level=”9″
28. eaccelerator.keys = “disk_only”
29. eaccelerator.sessions = “disk_only”
30. eaccelerator.content = “disk_only”
31. Xen
32. extension=”eaccelerator.so”
33. eaccelerator.shm_size=”64″
34. eaccelerator.cache_dir=”/tmp/eaccelerator”
35. eaccelerator.enable=”1″
36. eaccelerator.optimizer=”1″
37. eaccelerator.check_mtime=”1″
38. eaccelerator.debug=”0″
39. eaccelerator.log_file = “/var/log/eaccelerator_log”
40. eaccelerator.filter=”"
41. eaccelerator.shm_max=”0″
42. eaccelerator.shm_ttl=”0″
43. eaccelerator.shm_prune_period=”0″
44. eaccelerator.shm_only=”0″
45. eaccelerator.compress=”1″
46. eaccelerator.compress_level=”9″
47. eaccelerator.keys = “shm_and_disk”
48. eaccelerator.sessions = “shm_and_disk”
49. eaccelerator.content = “shm_and_disk”
50. mkdir -p /var/cache/eaccelerator
51. chmod 0777 /var/cache/eaccelerator
52. service httpd restart
53. php -v

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yum -y install autoconf automake
       cd /usr/local/src
       mkdir eAccelerator
       cd eAccelerator

wget http://downloads.sourceforge.net/project/eaccelerator/eaccelerator/eAccelerator%200.9.6.1/eaccelerator-0.9.6.1.zip?r=http%3A%2F%2Fsourceforge.net%2Fprojects%2Feaccelerator%2F&ts=1330173002&use_mirror=cdnetworks-kr-2

unzip eaccelerator-0.9.6.1.zip

cd eaccelerator-0.9.6.1

export PHP_PREFIX="/usr/local"
      $PHP_PREFIX/php5/bin/phpize

./configure –enable-eaccelerator=shared –with-php-config=$PHP_PREFIX/php5/bin/php-config

make && make install

cd /tmp
       mkdir eaccelerator
       chmod 0777 eaccelerator

最后修改PHP.INI【DirectAdmin的SuPHP模式安装的在/usr/local/etc/php5/cgi】
加到ZEND上面
[eaccelerator]
zend_extension="/usr/local/php5/lib/php/extensions/no-debug-non-zts-20060613/eaccelerator.so"
eaccelerator.shm_size="32"
eaccelerator.cache_dir="/tmp/eaccelerator"
eaccelerator.enable="1"
eaccelerator.optimizer="1"
eaccelerator.check_mtime="1"
eaccelerator.debug="0"
eaccelerator.filter=""
eaccelerator.shm_max="0"
eaccelerator.shm_ttl="0"
eaccelerator.shm_prune_period="0"
eaccelerator.shm_only="0"
eaccelerator.compress="1"
eaccelerator.compress_level="9"
最后
service httpd restart

下载地址:http://dominia.org/djao/limitipconn2.html

tar xjvf mod_limitipconn-0.23.tar.bz2
cd mod_limitipconn-0.23

make install

ExtendedStatus On

<IfModule mod_limitipconn.c>
<Location />#目录位置
MaxConnPerIP 30
</Location>
<Location /test>
MaxConnPerIP 1
</Location>
</IfModule>

service httpd restart

ICMP_IN = “1"
ICMP_IN_RATE="0"
ICMP_OUT = "1"
ICMP_OUT_RATE = "0"

还是朋友那台机器，exim怎么编译都不行，花费了几个小时，尝试了各种办法，最后决定用rpm模式安装

centos 5.6 

首先yum install –y rpm-build

wget http://files.directadmin.com/services/da_exim-4.76-1.src.rpm

rpmbuild –rebuild –force da_exim-4.76-1.src.rpm

32bit 

rpm -Uvh /usr/src/redhat/RPMS/i386/da_exim-4.76-1.i386.rpm

64bit

rpm -Uvh /usr/src/redhat/RPMS/x86_64/da_exim-4.76-1.x86_64.rpm

/etc/init.d/exim restart

这样就安装成功了。

cd /usr/local/directadmin/scripts/packages
wget -O majordomo-1.94.5.tar.gz http://files.directadmin.com/services/9.0/majordomo-1.94.5.tar.gz
tar xvzf majordomo-1.94.5.tar.gz
cd ..
./majordomo.sh

今天帮朋友装da 遇到

Error connecting to MySQL: Access denied for user: ‘da_admin@localhost’ (Using password: YES)

下面是解决办法

service mysqld stop 先停止数据库

mysql -uroot –p 密码为空

进入mysql

use mysql  进入mysql表

UPDATE user SET password=PASSWORD(‘newpass‘) WHERE user=’root’; 修改数据库的密码
       FLUSH PRIVILEGES;
       quit

执行

killall -9 mysqld_safe; killall -9 mysqld  关闭mysql进程

/sbin/service mysqld start 启动mysql

mysql -uroot –p

GRANT ALL PRIVILEGES ON *.* TO da_admin@localhost IDENTIFIED BY ‘newdapass‘ WITH GRANT 

OPTION;
     FLUSH PRIVILEGES;
     quit

离开mysql后，

vi   /usr/local/directadmin/conf/mysql.conf

里面改成上面的newdapass

重启mysql  service mysqld restart