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Linux
Discussion List
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X-Server access is denied on hostTrying to launch GUI wizard of Oracle FMW Infrastructure 12.2.1.3.0 on Linux 7 using jdk-8u211-linux-x64 but receiving the following error: X-Server access is denied on … -
Oracle Linux: How to Reset or Set the Root (or opc) Password in Oracle Linux 7Applies to: Oracle Cloud Infrastructure Linux OS - Version Oracle Linux 7.x Linux x86-64 Goal This article explains how the root password can be reset on Oracle Linux 7.… -
Moved: replace "Always Free" instanceThis discussion has been moved.
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Oracle Linux - How to configure SFTP with chroot enabledAPPLIES TO: Linux OS – Version Oracle Linux 7.0 to Oracle Linux 9.0 [Release OL7 to OL9] Linux x86_64 on Oracle Public Cloud GOAL: Uploading / Downloading files using an…Alejandro Rodriguez L.-Oracle 802 views 0 comments 0 points Started by Alejandro Rodriguez L.-Oracle -
OOM kills DNF during sudo dnf upgrade -y on OCI Free Oracle Linux 8.7Summary: OOM kills DNF during sudo dnf upgrade -y on OCI Free Oracle Linux 8.7 Content (required): I have an OCI Free with Oracle Linux 8.7 (image was 8.6) that used to … -
OCI: How to Setup X for X11 Forwarding in Oracle Linux 8APPLIES TO: Oracle Cloud Infrastructure Oracle Linux 8 (any version) GOAL: How to install basic X libraries and clients to allow X11 Forwarding via SSH in Oracle Linux 8…
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Oracle Linux - How to mount a SMB/CIFS Share using SYSTEMDAPPLIES TO: Linux OS – Version Oracle Linux 7.0 to Oracle Linux 9.0 [Release OL7 to OL9] Linux x86_64 on Oracle Public Cloud GOAL: Mount a SMB/CIFS share using SYSTEMD a…Alejandro Rodriguez L.-Oracle 1.3K views 0 comments 0 points Started by Alejandro Rodriguez L.-Oracle
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How do I reset an instance to default image?Summary: Resetting an instance to default supplied image Content (required): I created an instance with image imported from oracle supplied image for Ubuntu. The instanc…
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OSMH: Difference in package count between OSMH Installed packages and Oracle Linux Operating SystemApplies to: OSMH On-Prem Symptoms: On an Instance registered with OS Management Hub (OSMH), the package count displayed on the OSMH console is different between the pack…
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OSMH: Software Source Sync failed with error "Failed writing received data to disk/application"Applies to: OSMH On-Prem Goal: OS Management Hub (OSMH) Software Source Sync failed with the error : Cause: The Storage path for the Management Station is 100% Full. $ d…
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OSMH : Instance vulnerability report missing description/issue date for some errataApplies to: OSMH On-Prem Goal: It was observed that an instance ELSA in this case "ELSA-2023-3591 and ELSA-2023-3584" is missing it's description and issue date informat…
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OSMH: station-setup.sh file missing in directory /opt/oracle/mgmt_agent/plugins/osmh/stateDir/Applies to: OSMH On-Prem Goal After successfully deploying the OS Management Hub (OSMH) Management Station, the station-setup.sh file does not appear in the directory /o…
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OSMH - What System Data Is Stored In the Cloud?Applies to: OSMH On-Prem Goal This document details what system data is stored in the cloud for OS Management Hub (OSMH). Background For On-premise customers using OS Ma…
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OSMH: Management Agent setup.sh script fails with Error "Deploying service plugin(s).Time out"Applies to: OS Management Hub (OSMH On-Premise) Oracle Cloud Infrastructure Symptoms: Configuring the OSMH Management Agent by running the setup.sh script fails with an …
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OSMH : Instance suddenly into offline statusApplies to: OSMH On-Prem Goal: OS Management Hub (OSMH) instance suddenly goes into offline status, and the management agent service exits. Even after restarting the man…
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postfix and oci smtp serverHi, I've an Oracle Linux vm, version 7.9 and Postfix 2.10.1 I'm trying to use postfix as a relay server, and I've used oci smtp credentials of a dedicated oci user to se…
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Problem switching from networkd to NetworkManager on Ubuntu 22.04On an Ubuntu 22.04 instance on Google Cloud, switching from networkd to NetworkManager is easy: $ sudo apt install network-manager $ sudo nano /etc/netplan/50-cloud-init…
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Could not resolve host: yum.ap-osaka-1.oraclecloud.comHi, currently I wish to update the packages for OL8 on OCI Japan but getting the above message. Can I know how to resolve this error. Thanks in advance. Full error messg…
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Oracle Linux – How to create /dev/zero after accidentally deletedAPPLIES TO: Linux OS – Version Oracle Linux 7.0 to Oracle Linux 9.0 [Release OL7 to OL9] Linux x86_64 on Oracle Public Cloud GOAL: Create the character device /dev/zero …
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Oracle Linux – Fix KSPLICE was unable to install updates because a modified kernel is runningAPPLIES TO: Linux OS – Version Oracle Linux 7.0 to Oracle Linux 9.0 [Release OL7 to OL9] Linux x86_64 on Oracle Public Cloud GOAL: Install latest Ksplice patches. Sympto…Alejandro Rodriguez L.-Oracle 284 views 0 comments 0 points Started by Alejandro Rodriguez L.-Oracle
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OCI: Leapp Fails at "Upgrade requires links in root directory to be relative"APPLIES TO: Oracle Cloud Infrastructure Linux x86-64 SYMPTOMS Leapp preupgrade checks fails with below potential risks to the upgrade Risk Factor: high (inhibitor) Title…
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Linux: How To Extend a ROOT(/) Filesystem that is on a Logical Volume Manager (LVM) VolumeThis article describes how to extend the root filesystem "/" on Oracle Linux when it is located on an LVM volume. This procedure may be necessary if the root filesystem … -
SUDO Error "sudo: /usr/bin/sudo must be owned by uid 0 and have the setuid bit set"After connecting to the instance as an opc user, when you try sudo to root user, the following error is seen: [opc@ ~]$ sudo su - sudo: /usr/bin/sudo must be owned by ui…
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OCI: Yum Reports Error "Could not resolve host: yum$ociregion.$ocidomain; Unknown error"When trying to install packages on an Oracle Cloud Instance running a custom Oracle Linux image, yum fails with the following error: # yum -y install net-snmp Loaded plu…
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SSH Fails With Error: "FIPS mode initialized FIPS mode initialized ssh: connect to host <host name>SSH connections to an Oracle Linux 7 or higher fail, with the following errors logged to /var/log/secure: Oct 28 09:44:40 sshd: FIPS mode initialized Oct 28 09:44:40 s…
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Postfix Mail Server "/var/spool/postfix/maildrop" Mail Queue Fills /var on Linux InstanceA Linux instance is running the Postfix mail server. The /var/ filesystem on the server has filled to 100% utilization, and further checking subdirectories in /var shows…
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OCI: UFW Was Enabled on Ubuntu and SSH Connections Started to Fail With Connection Refused ErrorAn Ubuntu Instance started to experience "Connection Refused" errors when trying to log in to the server using ssh. This issue only started to occur after the Uncomplica…
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OCI: Linux User Account Incorrectly Set to "nologin"A local user account on a Linux instance was configured to use the nologin shell in error, as the user account needs to be able to log in to the Linux instance. Attempti…
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Unable to Remove LVM Snapshot - “Logical volume XYZ contains a filesystem in use."Attempting to remove an LVM snapshot on a linux instance fails with the following error: # lvremove /dev/VGExaDb/LVDbVar1Snap Logical volume VGExaDb/LVDbVar1Snap contain…
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System crash with: NMI received for unknown reason XX on CPU YApplies to: Oracle Linux - Version 7 and later Symptoms System crashed Crash report: [ 5629.913381] Uhhuh. NMI received for unknown reason 10 on CPU 5. [ 5629.913382] Do…