Category Oracle Linux

Set Transparent_Hugepages========================================================Check Hugepages setup :cat /sys/kernel/mm/transparent_hugepage/enabledChange hugepages :echo never > /sys/kernel/mm/transparent_hugepage/enabled Set hugepages on tunning Config========================================================Check tuned-adm profile :tuned-adm activeChange tuned profile :tuned-adm profile virtual-guestadd config hugepages :vi /usr/lib/tuned/virtual-guest/tuned.conf [bootloader]cmdline….

Fixing SSH Terrapin Prefix Truncation Weakness (CVE-2023-48795) On RedHat : 1. Modify the bellow setup on /etc/ssh/sshd_config : 2. Restart service SSH : 3. Test Cipher SSH with scanning tools….

1. Add the bellow setup on /etc/ssh/sshd_config 2. Also file /etc/sysconfig/sshd should be changed. The line 3. restart service sshd 4. Verification setup with command :

Applies to: Enterprise Manager Base Platform – Version 13.1.0.0.0 and later Information in this document applies to any platform. Goal This document provides the steps for configuring EM 13c to….

Environment Red Hat Enterprise Linux 7 Red Hat Enterprise Linux 8 Issue cockpit supports TLS v1.1 and v1.2 by default, how to restrict Cockpit to only support TLS v1.2? How….

Postfix supports TLS 1.2 from version 2.6 and TLS 1.3 from version 3.4 and newer. You can check the version you are using with the command: postconf -d | grep….

Environment Red Hat Enterprise Linux 6 (libvirt-0.10.2-62.el6 or later) Red Hat Enterprise Linux 7 (libvirt-daemon-2.0.0-10.el7 or later) Red Hat Virtualization Issue Need to disable older, insecure SSL/TLS protocols in libvirtd….

1. Locate the HBA address on the PCI bus: # lspci -k … 19:00.0 Fibre Channel: QLogic Corp. ISP2532-based 8Gb Fibre Channel to PCI Express HBA (rev 02) Subsystem: QLogic….

1. install packages multipath # yum install device-mapper-multipath 2. Enable config multipath.conf # mpathconf –enable 3. Configure multipath.conf # vi /etc/multipath.conf defaults { path_selector “round-robin 0” path_grouping_policy failover failback immediate….