Category 631
Discussion List
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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… -
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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Linux: Executing ssh –X Gives error “/ usr/bin/xauth: error in locking authority file” for UserApplies to: Oracle Cloud Infrastructure Linux x86-64 Symptoms Connecting with ssh -X to a destination server results in a successful login but an error is displayed: /us…
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OCI: Instance Fails to Boot and Drops to dracut PromptApplies to Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Goal This document outlines the steps required to recover an instance that drops to the dracu…
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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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How to Remove Weak Ciphers from SSH in Oracle Linux 8 and 9Applies to: Oracle Linux - Version 8 and later Goal Some Ciphers, Macs and KexAlgorithms used by default in SSHD configuration, are considered weak by some security scan…
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OCI : SSH Login Failed Due To Protocol MismatchApplies To: Oracle Cloud Infrastructure Oracle Linux - Version 6 Symptoms User is not able to login using private key with the following scenarios: Connection using “ssh…
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OCI - How to Install oracle-cloud-agent Package on Oracle Linux PlatformApplies to: Oracle Cloud Infrastructure Linux x86_64 Goal: This document describes how to install oracle-cloud-agent Package on a Oracle Linux Platform Solution: To manu…
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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 …Alejandro Rodriguez L.-Oracle 41 views 0 comments 0 points Started by Alejandro Rodriguez L.-Oracle Linux -
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 91 views 0 comments 0 points Started by Alejandro Rodriguez L.-Oracle Linux
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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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CUPS Fails to Print and Reports “Unable to get printer status”Applies to: Oracle Cloud Infrastructure Symptoms: After configuring a new printer in CUPS, the “lpstat” command shows “Connected to printer” but, after trying to print, …
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SSH Login Reports Error “Could not load host key: /etc/ssh/ssh_host_dsa_key”Applies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms: Below messages written into /var/log/secure log file frequently: ... May 8 07:44:5…
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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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OSMS: How to Add a 3rd Party Repository When OSMS is UsedIt is possible to use a 3rd party repository while using OSMS. To do so, add the 3rd party repository file name to the "ignored_repos.conf" file in OSMS. The following e…
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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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OCI: Oracle Linux [UEK-5] Panicks With: "BUG: Bad page state in process lvm pfn:cbea9d1"Applies To: Oracle Linux - Version 7 or later with UEK5 Symptoms: UEK5 can suffer from memory corruption panic. [229802.917409] loop: module loaded [229803.641151] BUG: …
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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…
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OCI: aide(1) is Failing with FIPSR ErrorApplies To: Linux OS – Version Oracle Linux 7.0 to Oracle Linux 9.0 [Release OL7 to OL9] Linux x86_64 on Oracle Public Cloud Symptoms: AIDE is an intrusion detection uti…Alejandro Rodriguez L.-Oracle 61 views 0 comments 0 points Started by Alejandro Rodriguez L.-Oracle Linux
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“du” Reports Less Space Utilization than “df”Applies to: Oracle Cloud Infrastructure Linux x86-64 Symptoms: The du (/usr/bin/du) and df (/bin/df) commands output display different storage space utilization values: …