删除垃圾

yum remove Deployment_Guide-en-US finger cups-libs cups bluez-libs desktop-file-utils ppp rp-pppoe wireless-tools irda-utils nfs-utils nfs-utils-lib rdate fetchmail eject ksh mkbootdisk mtools syslinux tcsh startup-notification talk apmd rmt dump setserial portmap yp-tools ypbind

yum remove telnet rsh ftp rcp

更换

yum install postfix yum remove sendmail /sbin/chkconfig postfix off

不需要的 xinetd 服务。

/sbin/service xinetd stop; /sbin/chkconfig xinetd off rm -rf /etc/xinetd.d

Nginx配置

user www www

worker_processes 1;

events { worker_connections 1024; use epoll; #使用高效率的epool模式 }

http { include mime.types; default_type application/octet-stream;

sendfile on;
keepalive_timeout 65

# 下面是配置缓存
client_header_buffer_size 32k;
large_client_header_buffers 4 32k;

fastcgi_connect_timeout 300;
fastcgi_send_timeout 300;
fastcgi_read_timeout 300;
fastcgi_buffer_size 32k;
fastcgi_buffers 4 32k;
fastcgi_busy_buffers_size 32k;
fastcgi_temp_file_write_size 32k;

# 下面是弃用gzip压缩缓存
gzip on;
gzip_min_length 1k;
gzip_buffers 4 16k;
gzip_http_version 1.0;
gzip_comp_level 2;
gzip_types text/plain application/x-javascript text/css application/xml;
gzip_vary on;

Mysql

[mysql] no-auto-rehash

[mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock user=mysql

Disabling symbolic-links is recommended to prevent assorted security risks

symbolic-links=0

open_files_limit = 600 back_log = 20 max_connections = 100 max_connect_errors = 200 table_cache = 60 external-locking = FALSE max_allowed_packet = 16M sort_buffer_size = 128K join_buffer_size = 128K thread_cache_size = 10 thread_concurrency = 8 query_cache_size = 0M query_cache_limit = 2M query_cache_min_res_unit = 2k default_table_type = MyISAM thread_stack = 192K transaction_isolation = READ-UNCOMMITTED tmp_table_size = 512K max_heap_table_size = 32M long_query_time = 1 log_long_format server-id = 1 binlog_cache_size = 2M max_binlog_cache_size = 4M max_binlog_size = 512M expire_logs_days = 7 key_buffer_size = 4M read_buffer_size = 1M read_rnd_buffer_size = 2M bulk_insert_buffer_size = 2M myisam_sort_buffer_size = 4M myisam_max_sort_file_size = 10G myisam_max_extra_sort_file_size = 10G myisam_repair_threads = 1 myisam_recover

skip-innodb #禁用innodb数据库引擎

[mysqld_safe] log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid

[mysqldump] quick max_allowed_packet = 16M

PHP listen = /var/run/php-cgi.sock #使用socket监听，不用端口监听 pm.max_children = 2 #默认是50
pm.start_servers = 2 #默认是20
pm.min_spare_servers = 2 #默认是5
pm.max_spare_servers = 2 #默认是35