Enable SASL authentication for memcached

MemCached from 1.4.3 Version start , Can support SASL authentication . It is more suitable for multiple applications to share one MemCached colony , It needs to be done at compile time , add –enable-sasl Options .

start-up memcached when , increase -S The option to

“ ./configure –prefix=%{datadir}  –enable-sasl

/usr/local/bin/memcached -S -d -u nobody ” SASL Authentication can also have many authentication mechanisms , such as pam,shadow,ldap etc.

The following is configured to use shadow How to authenticate

“ # modify /etc/sysconfig/saslauthd file

MECH=shadow

# Set the user's SASL The authentication code

saslpasswd2 -c -a memcached memuser

# Finally generated DB The file in /etc/ Next

-rw-r—– 1 root root 12288 Mar  6 11:52 /etc/sasldb2

# You can view the current SASL user

sasldblistusers2 ”

The following is configured to pass pam-mysql Use mysql Database to authenticate

“ # First installation pam-mysql

wget "http://prdownloads.sourceforge.net/pam-mysql/pam_mysql-0.7RC1.tar.gz"

./configure –with-mysql=/opt/apps_install/mysql-5.5.17

make & make install

# Add a soft link

ln -s /lib/security/pam_mysql.so /lib64/security/pam_mysql.so

# modify saslauthd To configure

MECH=pam

# edit pam.d Of memcached To configure

auth sufficient pam_mysql.so  user=sasl passwd=saslpwd host=xxx db=dbname table=t_app_info usercolumn=appid passwdcolumn=secret crypt=0 sqllog=1 verbose=1

account required pam_mysql.so user=sasl passwd=saslpwd host=xxx db=dbname table=t_app_info usercolumn=appid passwdcolumn=secret crypt=0 sqllog=1 verbose=1

# New addition memcached Configuration file for /etc/sasl2/memcached.conf

pwcheck_method: saslauthd

# restart saslauthd

/etc/init.d/saslauthd restart

# test saslauthd Certification has been successful

/usr/sbin/testsaslauthd -s /etc/pam.d/memcached -u 10000 -p pwd

0: OK "Success." ”

memcached Of java client, Such as spymemcached and xmemcached They have already supported it SASL Certified

“ #xmemcached Certification examples

MemcachedClientBuilder builder = new XMemcachedClientBuilder(AddrUtil.getAddresses("10.x.xx.xx:11211"));

builder.addAuthInfo(AddrUtil.getOneAddress("10.x.xx.xx:11211"), AuthInfo.plain("10000", "pwd"));

builder.setCommandFactory(new BinaryCommandFactory());

client=builder.build();

String v = client.get("test2"); ” python Version of pylibmc Also support SASL authentication