Linux Memcached 安装
在 Linux 上安装并启动 memcached。
Key Points用包管理器装 memcached，启动后默认监听 11211 端口。
安装与启动
Shell
sudo apt install -y memcached # Debian/Ubuntu
sudo systemctl enable --now memcached
# 或前台启动，指定内存与端口
memcached -d -m 64 -p 11211 -u memcache -l 127.0.0.1Output
* Starting memcached...
...done.验证
Shell
echo "stats" | nc 127.0.0.1 11211 | head -3Output
STAT pid 1234
STAT uptime 12
STAT version 1.6.21-m 64 caps memory; when full, least-recently-used keys are evicted (LRU). -l 127.0.0.1 binds locally; an exposed 11211 is as risky as Redis — restrict access.安装与启动
Shell
sudo apt install -y memcached # Debian/Ubuntu
sudo systemctl enable --now memcached
# 或前台启动，指定内存与端口
memcached -d -m 64 -p 11211 -u memcache -l 127.0.0.1Output
* Starting memcached...
...done.验证
Shell
echo "stats" | nc 127.0.0.1 11211 | head -3Output
STAT pid 1234
STAT uptime 12
STAT version 1.6.21-m 64 指定最多用 64MB 内存，满了按 LRU 淘汰最久未用的 key。-l 127.0.0.1 只听本地；公网暴露 11211 同样危险（无认证），务必限制来源。