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Memcached是一套分布式的高速快取系統，用于提升網站訪問速度，尤其對于一些大型的、需要頻繁訪問資料庫的網站，訪問速度提升效果十分顯著，
1.安裝memcached
yum install memcached
yum install libmemcached
netstat -ntpl
systemctl status memcached
systemctl start memcached
netstat -ntupl
2.配置memcached只監聽127.0.0.1
vim /etc/sysconfig/memcached
PORT="11211"
USER="memcached"
MAXCONN="1024"
CACHESIZE="64"
OPTIONS="-l 127.0.0.1 -U 0“ # -U 0 不啟用UDP監聽
systemctl restart memcached
netstat -ntpl
systemctl status memcached
3.檢查memcached運行，能看到很多資訊
memstat --servers="127.0.0.1"
4.配置memcached啟用sasl
vim /etc/sysconfig/memcached
PORT="11211"
USER="memcached"
MAXCONN="1024"
CACHESIZE="64"
OPTIONS="-l 127.0.0.1 -U 0 -S -vv"
systemctl restart memcached
netstat -ntpl
memstat --servers="127.0.0.1"
echo $?
5.安裝cyrus SASL庫
yum install cyrus-sasl-devel cyrus-sasl-plain
6.配置sasl
vim /etc/sasl2/memcached.conf
mech_list: plain
log_level: 5
sasldb_path: /etc/sasl2/memcached-sasldb2
cat /etc/sasl2/memcached.conf
saslpasswd2 -a memcached -c -f /etc/sasl2/memcached-sasldb2 zeng
chown memcached:memcached /etc/sasl2/memcached-sasldb2
systemctl restart memcached
netstat -ntpl
memstat --servers="127.0.0.1"
echo $?
memstat --servers="127.0.0.1" --username=zeng --password=redhat
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標籤：Linux
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