Postfix and Dovecot command cheat sheet for RHEL, AlmaLinux, Rocky Linux, Oracle Linux and CentOS Stream: postconf, queue management, lmdb tables, logs, TLS testing, doveadm, firewalld and SELinux.
Step-by-step Postfix and Dovecot mail server setup for RHEL 9/10, AlmaLinux, Rocky Linux, Oracle Linux and CentOS Stream: TLS, SASL submission on 587, IMAPS, LMTP delivery, verification and troubleshooting.
Create Message Of The Day Startup Banner CentOS To create a custom start-up message that displays after login, do the following: Open a terminal session, and elevate privileges to root…
Configure an AlmaLinux 10 machine as an MIT Kerberos client: krb5.conf with primary and replica KDCs, a host keytab, SSSD Kerberos password logins and passwordless SSH with GSSAPI.
Configure Citrix ICA Client CentOS 6 Configure Citrix ICA Client CentOS 6 This one is beautiful. Nothing like removing Windows from the entire process of working from home, or just…
RHEL images can now be picked and paid for directly in the OCI Console, and Ansible, OpenShift and OpenShift Virtualization subscriptions are available through Oracle Marketplace.
Add a replica KDC to an MIT Kerberos realm on AlmaLinux 10: copy the config and stash file, set up host keytabs and kpropd.acl, propagate with kprop, automate it with a systemd timer and test failover.
Check Software Raid Status CentOS Linux Check Software Raid Status CentOS Linux Let’s Say that you have replaced your RAID 1 drive because one failed. How do you know it’s…
Create, inspect, verify, secure and rotate MIT Kerberos keytabs on AlmaLinux 10 with kadmin, klist and ktutil, for host principals, services and cron jobs.
Mount NFS Share Linux Mint Mount NFS Share Linux Mint Need to mount a NFS Share on Linux Mint? su to root sudo apt-get install nfs-common it will ask if…
