Uninstall the old version of Docker to avoid conflicts, 2. Install yum-utils and add the official Docker repository, 3. Install DockerCE, CLI and containerd, 4. Start and enable Docker services, 5. Run hello-world image to verify that the installation is successful, 6. Optionally configure non-root users to run Docker.

Identifythenewdiskusinglsblkorfdisk-ltolocatethecorrectdevicelike/dev/sdb.2.Optionallypartitionthediskwithfdisk/dev/sdb,createaprimarypartitionusingdefaultsettings,andwritechangeswithw,thenrunpartprobetoupdatethekernel.3.Createafilesystemusingmkfs-tx

To configure the PHP environment to support MongoDB, the core step is to install and enable the PHP driver of MongoDB to enable the PHP application to communicate with the MongoDB database. 1. Install MongoDBPHP driver, it is recommended to use PECL to install. If there is no PECL, you need to first install the PHP development package and related compilation tools; 2. Edit the php.ini file and add extension=mongodb.so (or .dll) to enable the extension; 3. Restart the web server or PHP-FPM service to make the configuration take effect; 4. Verify whether the extension is loaded successfully through phpinfo() or php-m. Frequently asked questions include missing PECL commands, compilation errors, php.ini

Installcifs-utilsandoptionallysamba-clientusingyumordnf.2.Createamountpointlike/mnt/windows-share.3.ManuallymounttheWindowsshareusingthemount-tcifscommandwithappropriateoptions,preferablyusingacredentialsfileforsecurity.4.Storecredentialssecurelyin/e

Make sure the system has loaded the bonding module and confirm that the network card interface is available, use modprobebonding and lsmod to verify; 2. Create /etc/sysconfig/network-scripts/ifcfg-bond0 configuration files, set DEVICE, TYPE, BONDING_MASTER, IP parameters and BONDING_OPTS=mode=active-backupmiimon=100primary=ens33; 3. Configure ifcfg files of physical network cards ens33 and ens34, set MASTER=bond0, SLAVE=yes and remove IP configuration

In CentOS, the system log files are mainly stored in the /var/log directory. Common ones include: 1./var/log/messages record system messages; 2./var/log/secure record authentication-related logs; 3./var/log/dmesg record kernel information; 4./var/log/cron record timing task information; 5./var/log/boot.log record startup process. CentOS7 and above use rsyslog to manage logs, combined with systemd's journald tool, can be viewed through the journalctl command. It is also recommended to use logrotate to rotate logs and real

Usersyncforfullsystembackupsbymountingatargetdriveandrunningrsyncwitharchive,ACL,andextendedattributepreservationwhileexcludingvirtualfilesystems,thenunmountaftercompletion.2.Createcompressedsystembackupswithtarbyexcludingtemporarydirectoriesandcompr

First add the official PostgreSQL repository, then disable the system's own modules and install the PostgreSQL server and client. After initializing the database, start the service and set up the power-on self-start. Then configure the authentication method and network access permissions, and finally restart the service to make the configuration take effect.