Pdnsd is a good DNS parsing software in linux system. Compared with bind and dnsmasq, pdnsd has one ...
Linux
Linux
Python
Install pycurl problems
install pycurl with problems curl-config and ssl libs In centos 7 and python 3.6 environment, instal...
Mysql
Mysql partition search must scan the first partition
Mysql partition search optimization basically you should create a first partition that contains valu...
Python html escape and unescape
Python escape or unescape html special words methods. 1、The cgi module that comes with Python has an...
The CentOS common must install libs.
The new CentOS initial must install system libraries, which can make the system environment run smoo...
Python
Tornado asynchronous web request client example
Tornado is a python web Server, which is better for solving long connection request or IO asynchrono...
CANNOT OPEN SHARED OBJECT FILE: NO SUCH FILE OR DIRECTORY
This maybe you delete the shared lib file soft link. So must execute a system command to rebuild the...
mongodb update command($inc/$set/$unset/$push/$pop/upsert/save)
In addition to replacement, only partial updates are needed for one or more documents. Atomic update...
Mongodb
MongoDB – Too Many open files
Mongodb always meat the error too many open files, then the deam process crashed. In Linux system, t...
MYSQL 8.0 ERROR：ERROR 2059: AUTHENTICATION PLUGIN ‘CACHING_SHA2_PASSWORD’ CANNOT BE LOADED
Error Message: error 2059: Authentication plugin ‘caching_sha2_password’ cannot be loaded: /usr/lib6...