Terraform Examples for Amazon AWS from AlmaLinux 10
Practical Terraform examples for Amazon AWS from an AlmaLinux 10 workstation: VPC, security groups, an AlmaLinux EC2 instance, an encrypted S3 bucket, and S3 remote state with native locking.
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Postfix and Dovecot Cheat Sheet for RHEL, AlmaLinux and Rocky Linux
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.
Configure Postfix and Dovecot on RHEL, AlmaLinux, Rocky and Oracle Linux
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.
Configure a Kerberos Client on AlmaLinux 10
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.
Red Hat Enterprise Linux Becomes a First-Party Offering on Oracle Cloud Infrastructure
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.
Set Up a Kerberos Primary and Replica KDC on AlmaLinux 10
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.
Create and Manage Kerberos Keytabs on AlmaLinux 10
Create, inspect, verify, secure and rotate MIT Kerberos keytabs on AlmaLinux 10 with kadmin, klist and ktutil, for host principals, services and cron jobs.
Set Up an MIT Kerberos KDC on AlmaLinux 10
Step-by-step guide to installing and configuring an MIT Kerberos KDC and kadmin server on AlmaLinux 10, with verification and troubleshooting.
configure /tmp to be tmpfs,nosuid,nodev RHEL/CentOS
configure /tmp to be tmpfs,nosuid,nodev RHEL/CentOS configure /tmp to be tmpfs CentOS 6 Usually this configuration is a security standard, it requires /tmp to be cleared on reboot, nodev, and…
Install Nagios 4 on CentOS/RHEL6
Install Nagios 4 on CentOS/RHEL6 Install Nagios 4 on CentOS/RHEL6 Nagios has worked hard to secure it’s seat as one of the world’s best enterprise monitoring systems. Nagios alerts about…