优化Debian缓存配置文件可从以下方面入手:
/etc/apt/apt.conf.d/95proxies文件,添加Acquire::http::Cache::Size "size_in_MB";和Acquire::ftp::Cache::Size "size_in_MB";,将size_in_MB替换为所需大小。/etc/apt/apt.conf.d/95proxies中添加Acquire::http::Cache::Expire "time";,time单位可为天、小时等。/etc/apt/apt.conf.d/95proxies中添加Dir::Cache::Archives "/new/cache/directory";。sudo apt-get install memcached和sudo apt-get install redis-server安装,再根据需求配置。proxy_cache_path等相关配置,然后重载Nginx。sudo apt-get clean等命令清理APT缓存。free -m等命令监控内存,调整/etc/sysctl.conf中内核参数优化内存管理。