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How to Use FIREWALLD on Oracle Linux 8Oracle Linux 7 and higher comes with the package firewalld, which is used to configure and manage firewall rules. This video explains how to set up and use firewalld on … -
How To Boot Into Single User Mode on Oracle Linux 6You may wish to boot into single user mode on Oracle Linux in order to perform system maintenance, or to attempt to recover or repair a server that is experiencing softw…
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How to Configure SUDO To Allow Non-Root Users to Run Privileged CommandsThe "sudo" command is used to allow non-root users to run commands that require root privileges. You can configure sudo to allow a user to run all commands in the same w…
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How to Add a Repository to an Ubuntu InstanceTo add a repository to a linux cloud instance running Ubuntu, add the details for the repository you wish to add to /etc/apt/sources.list or to the /etc/apt/sources.list…
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How to Configure SSH Port Forwarding on LinuxLocal port forwarding over SSH (also known as SSH Tunneling) maps a local port on the client system to a remote port on the server system. This configuration enables you…
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OCI - Installing PHP on Oracle Linux 8 via AppStream ModulesApplies to: Oracle Cloud Infrastructure Linux x86-64 Goal: Explain Installing PHP on Oracle Linux 8 via AppStream Modules SOLUTION Oracle Linux 8 introduces the concept … -
OCI - How To Configure Ubuntu Instances to Display GRUB MenuApplies to: Oracle Cloud Infrastructure Ubuntu Goal: When connected via serial console – in both SSH, VNC, and OCI CloudShell options – the GRUB2 boot loader menu is not…
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OCI: Paravirtualized Instance Created from Custom Image Failed to Boot With ErrorOCI: Paravirtualized Instance Created from Custom Image Failed to Boot With Error "dracut-initqueue timeout - starting timeout scripts" or Struck at "random: nonblocking…
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OCI : How to Verify the Status of the Cloud Agent OSMS Plugin in Oracle Linux Instances?APPLIES TO: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 GOAL: How to verify the status of the Cloud Agent OSMS Plugin in Oracle Linux instances? SOL… -
OCI - How To Enable Root User SSH-keys in OCI Oracle Linux Custom ImagesApplies to: Oracle Cloud Infrastructure Linux x86-64 Goal: The process of creating an OCI instance based on a Platform image, or a custom image based on a Platform image…
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OCI: Unable to Mount NFS Share from FSS with NFSv4 Option "mount.nfs4: Protocol not supported"Applies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 SYMPTOMS On OCI Linux Instance unable to mount NFS share from FSS(File Storage Service) usin…
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Oracle Retail SIM support on OEL 7 or aboveSummary: IHAC whose currently running Oracle Retail SIM 13 version at on-premise and planning to migrate to OCI and would like to know the possible versions that can run… -
OCI - How To Create a Yum Channel Entry for Oracle Linux 6 Extended Support (ELS)Applies to: Oracle Cloud Infrastructure Goal: To create a yum config entry for Oracle Linux 6 Extended Support (ELS) on Oracle OCI Solution: NOTE: This configuration is …
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OCI : How to Manually Generate a Memory Dump/Crashdump of an Unresponsive/Hung OCI instanceApplies to: Oracle Cloud Infrastructure Linux x86-64 Oracle Linux Cloud Service Goal How to generate a memory dump/Crashdump of an unresponsive/hung OCI instance A diagn…
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Yum Update with "Connection Timed out after 30001 milliseconds" Error in Oracle Cloud InfrastructureApplies to: Oracle Cloud Infrastructure Linux x86-64 on Oracle Public Cloud Symptoms: When trying to download and install packages, the below errors occur: --snip-- # yu…
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OCI - How To Set Up a Local Yum Repository For Instances In Private NetworksApplies to: Oracle Cloud Infrastructure Goal: Steps for setting up local yum repository accessible within the OCI environment for instances in a private network. Solutio…
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iSCSI Error Messages on OCI Instance "kernel: connection1:0: detected conn error (1020)"APPLIES TO: Oracle Cloud Infrastructure - Version N/A to N/A [Release 1.0] Linux OS - Version Oracle Linux 6.10 to Oracle Linux 7.9 with Unbreakable Enterprise Kernel [5…
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How to Check/Modify MTU Value on OCI Instances to Avoid Connection Time Outs from On-PremisesAPPLIES TO: Oracle Cloud Infrastructure - Version N/A and later Linux OS - Version Oracle Linux 6.0 to Oracle Linux 7.6 with Unbreakable Enterprise Kernel [4.14.35] [Rel…
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System Files /etc/hosts and /etc/resolv.conf Changed During BootApplies To: Oracle Cloud Infrastructure Linux x86-64 Symptoms: The system files /etc/hosts and /etc/resolv.conf file were changed during boot, loosing customization. Cau…
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FSS NFS Share Automount Snapshot Mount Point After Running Find CommandApplies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms: After mounting a nfs share exported from FSS it also mount .snapshot directory whe…
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Running Cron Script on System Reboot Sometimes FailsApplies To: Oracle Cloud Infrastructure - Version N/A to N/A [Release 1.0] Linux OS - Version Oracle Linux 5.0 to Oracle Linux 8.0 [Release OL5 to OL8] Linux x86-64 on O…
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Oracle Linux 8: How To Access the Boot Menu (Grub Menu)Applies to: Oracle Cloud Infrastructure - Version N/A and later Information in this document applies to any platform. Goal This document will explain how to access the B…
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OCI-How to configure and troubleshoot NTP Client in Oracle Linux 6/7 instances in OCIAPPLIES TO: Oracle Cloud Infrastructure - Version N/A and later Information in this document applies to any platform. PURPOSE In Oracle Cloud Infrastructure(OCI), there …
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Upgrade ubuntu imageSummary: upgrade ubuntu Content (required): Version (include the version you are using, if applicable): Code Snippet (add any code snippets that support your topic, if a… -
How To Create A Frozen Custom Source in OSMSApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Goal This document will explain how to create two frozen custom sources in OSMS and how to a…
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OCI: How to Expand the Root Filesystem to Use The Available Space in the Boot VolumeApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Goal OCI instances can be created with a custom Boot Volume size. The size can be between 50…
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Oracle Cloud Infrastructure : How to Resize the Block Volume Storage and Filesystem On Oracle LinuxApplies to: Oracle Cloud Infrastructure - Version N/A to N/A [Release 1.0] Linux x86-64 Goal This KM will provide the steps about resize the block storage volume at the …
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Error "Permission denied(publickey,gssapi-with-with-mic)" When connecting to Instance Using OPC userApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms Unable to connect to instance getting error "Permission denied (publickey,gssapi-ke…