Shulou(Shulou.com)06/03 Report--

Memcached is a distributed cache system used to speed up website access, especially for large websites that require frequent access to databases.

1. Install memcached

yum install memcached

yum install libmemcached

netstat -ntpl

systemctl status memcached

systemctl start memcached

netstat -ntupl

2. Configure memcached to listen only on 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 Do not enable UDP listening

systemctl restart memcached

netstat -ntpl

systemctl status memcached

3. Check memcached running, you can see a lot of information

memstat --servers="127.0.0.1"

4. configure memcached enable 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. Install cyrus SASL library

yum install cyrus-sasl-devel cyrus-sasl-plain

6. Configure 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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