flushing dns cache

Reference: Flushing your DNS cache in Mac OS X and Linux Mac OS X clears the DNS cacheSelect the following commands according to the version of Mac OS X operating system:Mac OS X (Sierra) and later:sudo killall -HUP mDNSRespondersudo killall

Chrome resolves DNS errors, which is rare, even a bit peculiar. There is a very strange phenomenon when you use Apache to configure a virtual host today. I followed the configured steps to configure the virtual host as followsThe steps to configure

1.default_storage_engine If you're already using MySQL 5.6 or 5.7, and your datasheet is InnoDB, then you've set it up. If not, make sure to convert your table to InnoDB and set Default_storage_engine to InnoDB.Why? In short, because InnoDB is the

Description1, red indicates key parameter2, "Global Cache", "Thread cache", the global cache is all thread sharing, the thread cache is each line thread attached the data when the creation of a thread ( if not set up a thread pool), if there is a 200

This article is reproduced from http://blog.csdn.net/wulantian/article/details/29593803Thank the Master for his hard work.One, safety improvement1. Provide the method to save the encrypted authentication information, using the. mylogin.cnf file. Use

Hbase.tmp.dir: Temporary directory for the local file system, default isjava.io.tmpdir/hbase−">JAva io tm pd ir / hb as e− Java.io.tmpdir/hbase−{user.name};Hbase.rootdir:hbase Persistent directory, is shared by all regionserver, default

Reprinted: http://www.csdn.net/article/2012-11-08/2811571-Big-List-Of-20-Common-Bottlenecks In Zen and the art of scaling-A koan and epigram approach, RussellSullivan makes a very interesting conclusion: 20 traditional system bottlenecks are

Architecture Software Development Abstract:During normal development, you may encounter bottlenecks in various aspects of development, such as performance and system. Have you summarized them? Let's take a look at the classification of these system

CentOS6.5 + Puppet3.7.3 installation, configuration, and testing OS: CentOS-6.5-x86_64 Puppet 3.7.3 Puppet master: master.fisteam2.com Puppet clients: node1-5.fisteam2.com Puppet requires that all machines have a complete domain name (FQDN). If no

20 Common bottlenecks for programmersIn the Art of Extensibility book, Russell gives 20 interesting estimates: There are about 20 classic bottlenecks.Russell said that if he was young, he knew how good these bottlenecks should be! These assertions