要提升CentOS LAMP服务器的稳定性,可以从以下几个方面进行优化和调整:
yum或dnf定期更新操作系统和所有软件包。sudo yum update -y
sudo yum update security
smartctl监控硬盘健康状况。sudo smartctl -a /dev/sda
/etc/sysctl.conf文件,优化网络参数。net.ipv4.tcp_syncookies = 1
net.ipv4.ip_local_port_range = 1024 65535
net.core.somaxconn = 65535
firewalld或iptables来保护服务器。sudo firewall-cmd --permanent --zone=public --add-service=http
sudo firewall-cmd --reload
/etc/httpd/conf/httpd.conf,调整StartServers、MinSpareServers、MaxSpareServers和MaxClients。StartServers 5
MinSpareServers 5
MaxSpareServers 10
MaxClients 150
KeepAlive On
MaxKeepAliveRequests 100
KeepAliveTimeout 5
/etc/my.cnf或/etc/mysql/my.cnf,根据服务器资源调整参数。[mysqld]
innodb_buffer_pool_size = 70% of total RAM
max_connections = 200
query_cache_size = 64M
OPTIMIZE TABLE命令。/etc/php.ini,优化PHP参数。memory_limit = 128M
upload_max_filesize = 20M
post_max_size = 80M
max_execution_time = 300
logrotate工具定期轮转日志文件。sudo yum install logrotate -y
sudo systemctl enable logrotate
ELK Stack(Elasticsearch, Logstash, Kibana)来集中管理和分析日志。Nagios、Zabbix或Prometheus等工具监控服务器性能和健康状况。通过以上步骤,可以显著提升CentOS LAMP服务器的稳定性和性能。记得在每次更改配置后重启相关服务以应用更改。