Change Oracle Linux Run Level
Change Oracle Linux Run Level Change Oracle Linux Run Level in this example, we have Oracle 11gR2 Installed On Oracle Linux, but we only want to use the GUI when…
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Installing Solaris 10 on SPARC: Interactive Text Installation Step by Step
A screen-by-screen Solaris 10 1/13 SPARC install over the serial console: boot cdrom – nowin, terminal type and Esc-2 keys, sysidtool identification, software groups, ZFS vs UFS root, SMI labels, boot-device, verification and LDoms guests.
MariaDB Galera Cluster on AlmaLinux 10: Three-Node Setup, Bootstrap and Recovery
Build a three-node MariaDB Galera Cluster on AlmaLinux 10: firewalld and SELinux ports, bootstrap, SST joins, verification, safe restarts, crash recovery, backups and troubleshooting.
cannot login ldap centos 6
cannot login ldap centos 6 cannot login ldap centos 6 so for this example we have a working LDAP directory system, that allowed normal CentOS 5 clients to authenticate with…
MariaDB GTID Replication on AlmaLinux 10: Primary and Replica Setup
Set up MariaDB primary/replica replication with GTID on AlmaLinux 10: seed the replica with mariadb-backup, start replication, monitor it, switch over and fix common errors.
Backup MySQL on Linux
Backup MySQL on Linux Backup MySQL on Linux Backing up MySQL databases on Linux can be relatively easy once you get the hang of it.. issue the following command: mysqldump…
Solaris Serial Console Access: ILOM, tip, cu, TERM and stty
How to reach and configure the Solaris 10 and 11 console over serial: ILOM /HOST/console, LDoms vntsd, tip and cu escapes, eeprom and bootadm console settings, TERM and stty fixes.
Configure Postfix Mail Server CentOS/RedHat
Set up Postfix on CentOS/RHEL as an internal mailhub and outbound gateway: inet_interfaces, mynetworks, STARTTLS with a self-signed cert, and testing.
Configure Postfix RelayHost CentOS/RedHat
Send all mail from a CentOS/RHEL server through your internal mail server with the Postfix relayhost setting, then test with mailx, mailq and the maillog.
MariaDB and MySQL Backups on AlmaLinux 10: mysqldump, mariadb-backup and Point-in-Time Recovery
Back up MariaDB/MySQL on AlmaLinux 10 with mariadb-dump and mariadb-backup, automate it with a systemd timer, and restore fully, per database or to a point in time.