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1. Log in to PL/SQL DeveloperThis omits the installation steps for the Oracle database and PL/SQL Developer, and note that when you install the PL/SQL Developer software, do not install it under the program Files (x86) directory or you cannot start PL/SQL Developer.Wonder why the database TNS is not chosen here? I installed the database first and then installed PL/SQL Developer. When the PL/SQL developer is installed, Oracle home and OCI Libaray have been identified. What about it? Log in to PL/

after you forget the root passwordStop MySQL service, or command systemctl stop MySQLService MySQL StopEnter/usr/local/mysqlCD $MYSQL _homeStart MySQL via Mysqld_safe and do not start the Grant-tables authorization form when you start MySQL./bin/mysqld_safe--basedir=/usr/local/mysql--datadir=/usr/local/mysql/data--skip-grant-tables Log in to MySQLMysql-u Root MySQLChange root passwordMysql>update user SET Password=password ("New_password") WHERE user= ' root ';RefreshMysql>flush privileges;Quit

To edit the network card configuration file[Email protected]/]# vi/etc/sysconfig/network-scripts/ifcfg-eno16777736hwaddr=00:0c:29:b8:40:8dType=ethernetBootproto=dhcp # #dhcp: Auto get ip,static: Static Ip,none: No protocolDefroute=yesPeerdns=yesPeerroutes=yesIpv4_failure_fatal=noIpv6init=yesIpv6_autoconf=yesIpv6_defroute=yesIpv6_peerdns=yesIpv6_peerroutes=yesIpv6_failure_fatal=noname=eno16777736Uuid=5e66154a-c337-4dfa-a555-9b8ae0bd27edOnboot=yes # #启动network服务时是否启用该网卡, yes is enabledRestart Netw

/Environment this file Then add your path such as: Llvm_config="/usr/local/bin/llvm-config", this is the directory of my installation, you may be different,$whereis llvm-config command return what you addAdd this path to the last line of the/etc/environment file and restart the machine (be sure to restart the machine)Re-install:$ python setup.py BuildIf you still get an error, then this could be the mistake:　　In fact, because of the lack of this-lstdc++ link caused.So how does this work out?Ref

downQuery Nginx main process numberPs-ef | grep nginxCalmly stop Kill-quit master process numberFast Stop Kill-term main process numberForce Stop kill-9 NginxIf the PID file path is configured nginx.conf, if not, in the logs directoryKill-Signal type '/usr/local/nginx/logs/nginx.pid 'Upgrade1. Replace the old program file with the new program first2, KILL-USR2 the old version of the program's main process number or process file nameAt this point the old Nginx master process will rename its proc