Linux
Discussion List
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Managing DHCP Options For Linux Instances in a VCNTo specify DHCP options for a linux instance, you need to set the DHCP options for the specific subnet in the virtual cloud network (VCN) that your linux instance is usi… -
How to Configure RDP on an Ubuntu 20.04 InstanceThe following steps show how to install a Gnome 3 desktop and xrdp on a standard Ubuntu 20.04 instance. This will allow the Ubuntu instance to work with the RDP protocol…
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OL7 upgradeSummary: Hi, the only way to upgrade OL7 (to OL8) is using leapp ? Using yum tool is not allowed ? thanks. Content (required): I need to perform this upgrade since curre…
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Using port 8008 for HTTP service on Oracle LinuxSummary: I have a Compute instance running Oracle Linux 8.6 server. I use it to run nginx proxying to a couple of web apps on the backend. I have port 80 working. But tr…
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OCI: What is the ocivolume-oled Volume Mounted on /var/oled FilesystemApplies to Oracle Cloud Infrastructure - Version N/A and later Linux OS - Version Oracle Linux 7.0 and later Linux x86-64 Goal Describe the /dev/mapper/ocivolume-oled Vo…
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How to change the primary VNICHI all as asked early i think that the only way to change the primary vnic from a vnc to another is deleting the instance an recreate a new instance using the boot volum… -
OCI Instance Migrated From Intel to AMD Shape Does Not Boot SuccessfullyApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux X86-64 Symptoms Ubuntu based 20.04 custom image instance is working correctly using Intel based OCI…
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OCI : How to Enable the OS Management Service Agent service in Oracle Linux 8 InstancesAPPLIES TO: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 GOAL How to enable the OS Management Service Agent plugin in Oracle Linux 8 instances? SOLUT…
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Oracle Linux 7 - How To Store Iptables Rules To Survive Across Reboots and OSMS PatchingAPPLIES TO: Oracle Cloud Infrastructure - Version N/A to N/A [Release 1.0] Linux OS - Version Oracle Linux 7.0 to Oracle Linux 7.9 [Release OL7 to OL7U9] Linux x86-64 GO…
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OSMS Plugin shows error "Not Supported" and "plugin disabled in config" for Existing OCI instanceAPPLIES TO: Oracle Cloud Infrastructure - Version N/A and later Information in this document applies to any platform. SYMPTOMS Instance created in 2019, hence by default…
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OSMS agent service fails to start on instances with more than one VNICAPPLIES TO: Oracle Cloud Infrastructure - Version N/A and later Information in this document applies to any platform. SYMPTOMS OSMS agent service fails to start on insta…
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Attaching a paravirtualized volume with specific device pathSummary: Link: https://docs.oracle.com/en-us/iaas/Content/Block/References/fstaboptionsconsistentdevicepaths.htm#fstab_Options_for_Block_Volumes_Using_Consistent_Device_…
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OCI: Ubuntu ufw Fails to Open Ports while firewalld is Installed and RunningApplies to: Oracle Cloud Infrastructure - Version N/A and later Ubuntu OS Symptoms: On an Ubuntu 22.04 images, firewalld was installed and started while ufw was configur…
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SFTP/SSH Client Sometimes Reports Host Key Changes When Connecting to ServerApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux OS - Version Oracle Linux 6.0 and later Any platform. Symptoms An application or SFTP/SSH client re…
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How to Configure RDP on an Ubuntu 20.04 InstanceThe following steps show how to install a Gnome 3 desktop and xrdp on a standard Ubuntu 20.04 instance. This will allow the Ubuntu instance to work with the RDP protocol…
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OCI: LFTP Transfer From On-Prem To OCI Fails With "Access Failed: 550 Failed to Change Directory"Applies to: Linux OS - Version Oracle Linux 7.0 and later Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 SYMPTOMS File Transfer From On-Premises to OCI…
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How To Install a Graphical Desktop on an Ubuntu Instance1). From a shell prompt, run the following commands to install the Xfce4/xubuntu desktop, which is a light-weight GUI desktop for Ubuntu: (ubuntu) $ sudo apt update (ubu…
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OCI: Managing DHCP Options For Linux Instances in a VCNTo specify DHCP options for a linux instance, you need to set the DHCP options for the specific subnet in the virtual cloud network (VCN) that your linux instance is usi…
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Sudo Fails with Error Message Ending With "/usr/bin/sudo: No such file or directory"An Oracle Linux or Red Hat Linux based server tries to run sudo commands, but the commands fail with the following error message: "/opt/rh/devtoolset-11/root/usr/bin/sud…
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How To Configure a Yum Repository On Oracle Linux 7Yum is used to install, update and manage packages on Oracle Linux 7. Yum can also be used to connect to package repositories. Yum is configured to work with the Oracle …
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How To Configure Secure FTP on Oracle Linux 8The Oracle Linux 8 distribution contains the vsftpd package, which when installed and configured, allows an Oracle Linux 8 system to run a secure ftp (ftps) server. This…
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Yum Commands Hang on Oracle LinuxYum commands, including yum update, hang whenever anyone attempts to run them on an Oracle Linux server. If, apart from yum or rpm commands, no other commands are hangin…
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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 …
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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: OSMS Error ”[Errno 14] - Failed connect to <host>:443; Operation now in progress..."Applies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms When trying to install a package, the install fails with error: $ sudo yum install …
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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 …
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OCI : OSMS Error "<ProtocolError for http://127.0.0.1:9003/XMLRPC: 403 Client Error: Forbidden"Applies to: Oracle Cloud Infrastructure Linux x86-64 Symptoms OSMS failing with error below when trying to perform yum update or perform OS update from OCI console # yum…