Oracle Linux
Discussion List
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How to Remove stale ISCSI Target Node Information from ISCSI Initiator ServerApplies to: Oracle Cloud Infrastructure Linux OS – Oracle Linux 5.1 to Oracle Linux 7.6 (OL5U1 to OL7U6) SYMPTOMS Stale ISCSI target connections which are still present … -
OCI: SSH to Instance Failed at "Connection refused"Applies to: Oracle Cloud Infrastructure Linux x86_64 SYMPTOMS When ssh to an instance, it fails with "Connection refused" as follows: OpenSSH_7.1p2, OpenSSL 1.0.1g 7 Apr… -
Oracle Linux: Server Got Shutdown With "systemd-logind: Power key pressed" MessageApplies to: Linux OS - Version Oracle Linux 7.0 and later Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms: Server got shutdown with the below m…
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OCI - Unable to SSH into Instance with Error "connect to host x.x.x.x port 22: Connection refused"Applies to: Oracle Cloud Infrastructure Linux x86-64 Symptoms: Unable to login to OCI instance and attempts fail with error: ssh: connect to host x.x.x.x port 22: Connec…
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Yum Update Fails With Error "package_newer_ver.x86_64 is a duplicate with package_older_ver.x86_64Applies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms: The command "yum update" fails with duplicate package error: Error: Package: glibc…
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SSH Using AD Fails with Error: [be[<DOM>]] [ad_gpo_access_done] (0x0040): GPO-based access controlApplies To: Oracle Cloud Infrastructure - Version N/A and later Linux OS - Version Oracle Linux 8.1 and later Symptoms: The system is configured to authenticate to an Ac…
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Oracle Linux: Slow NFS TransferApplies To: Oracle Cloud Infrastructure - Version N/A and later Linux OS - Version Oracle Linux 6.0 and later Symptoms: Slow NFS read and write access. Kernel ring buffe…
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Oracle Linux 6: Security Update Not Available in Public RepositoriesApplies To: Oracle Cloud Infrastructure - Version N/A and later Linux OS - Version Oracle Linux 6.0 to Oracle Linux 6.10 [Release OL6 to OL6U10] Symptoms: Oracle announc…
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iscsid: Kernel reported iSCSI connection 1:0 error (1020 - ISCSI_ERR_TCP_CONN_CLOSE: ...)Applies To: Oracle Cloud Infrastructure - Version N/A and later Goal: Below messages appear sporadically in OCI instances: Sep 22 04:34:28 kernel: connection1:0: detecte…
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How To Apply Security Update On Oracle Linux 6 and 7Applies to: Linux OS - Version Oracle Linux 6.0 to Oracle Linux 7.6 [Release OL6 to OL7U6] Oracle Cloud Infrastructure - Version N/A to N/A [Release 1.0] Linux x86-64 Go…
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Setting PRESERVE_HOSTINFO=2 in /etc/oci-hostname.conf Does Not Prevent /etc/resolv.conf OverwriteApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms On : OCI Linux instance Setting PRESERVE_HOSTINFO=2 in /etc/oci-hostname.conf does …
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How to reset a forgotten root password from Serial Console of Oracle Linux instance in OCIApplies to: Oracle Cloud Infrastructure - Version N/A to N/A [Release 1.0] Information in this document applies to any platform. Goal If you can't SSH to Oracle Linux In…
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Still Cannot Connect to Ports XXXX Even After Adding to VCN Security Rules and IPTables RulesApplies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms: Connections to certain ports still fail even when they are allowed in VCN security…
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OCI: How to configure a secondary VNICs in OL7 Instance via oci-network-configApplies to: Oracle Cloud Infrastructure - Version N/A and later Information in this document applies to any platform. Goal This article illustrates how to use OCI utili…
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How to Change MTU SizeApplies To: Oracle Cloud Infrastructure - Version N/A and later Linux OS - Version Oracle Linux 6.0 and later Linux x86-64 Goal: This document details steps to change MT…
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Set up Secure VNC server in OCI Compute instancesApplies to: Oracle Cloud Infrastructure - Version N/A and later Information in this document applies to any platform. Goal Set up Secure VNC server in RHEL /Oracle Linux…
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Permission denied (public key) during SSH login with opc userApplies to: Oracle Linux Cloud Service - Version Oracle Linux 6.0 and later Oracle Cloud Infrastructure Linux x86-64 Symptoms User gets a permission denied (public key) …
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Boot Failed with Error: Warning: /dev/<VG>/root does not existApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux OS - Version Oracle Linux 7.0 and later Oracle Compute Cloud Service - Version N/A and later Inform…
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VNCServer Session Is Not Started on Oracle Linux InstanceAttempting to start a VNCServer session on an instance running Oracle Linux 7 or higher fails with either 'Internal error: Could not resolve keysym' or 'XIO: fatal IO er… -
PRESERVE_HOSTINFO=2 in /etc/oci-hostname.conf Does Not Stop /etc/resolv.conf From Being OverwrittenAn Oracle Linux instance has its /etc/resolv.conf files overwritten whenever it is rebooted or whenever its DHCP lease is renewed. In line with Oracle Cloud Infrastructu…
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SSH Login Stuck At : "debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP"SSH connections hang, and errors such as SSH2_MSG_KEX_DH_GEX_GROUP or SSH2_MSG_KEX_ECDH_REPLY are seen in verbose logging output or in /var/log/messages. When trying to …
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How to Enable X11 Forwarding Over SSH on Oracle Linux 6 and 7The following instructions demonstrate how to enable X11 forwarding over SSH on systems running Oracle Linux 6 and 7, to display an X11 window on a different server. To …
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Does Oracle Linux Include Anti-Virus Software As Part Of Its Distribution?Some Operating Systems (OS) include their own anti-virus software as part of the OS distribution. However many Linux distributions, including Oracle Linux, do not includ…
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Installing And Running Oracle Ksplice in Oracle CloudThe uptrack tools necessary to run Oracle Ksplice in Oracle Cloud are included in the base image of Oracle Linux instances. These tools have names that start with 'uptra…
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How to Boot Oracle Linux 7 (OL7) Into Rescue And Emergency Modes Via 'systemd'In OL7, both rescue mode and emergency mode are systemd targets (that replace runlevels of previous OL versions). Note Rescue mode allows the system to be repaired in si…
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How To Install Security Updates On Oracle Linux Using YUMIt is possible to use package management tools such as yum or dnf included in Oracle Linux to only install security updates, rather than applying all available updates t…
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How to Use the YUM Versionlock Plugin to Exclude Specific RPM Packages From Being UpgradedThere are instances where specific versions of an application or driver RPM package may have dependencies on specific kernel versions. In situations like this, you can u…
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How to Connect Through VNC Using the Public IP Address of an Oracle Linux 7 Instance on OCIThis article explains how to configure VNC to connect to an Oracle Linux 7 instance via the instance's public IP address on OCI. 1) Install graphical user interface (GUI…
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How To Collect a Sos ReportA sos report can be collected on systems running Oracle Linux or Red Hat Linux in order to obtain system configuration information and logs. If the sos package, which pr…
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How To Install The Sosreport PackageA sosreport collects diagnostic support data from Oracle Linux or RHEL. To install it, install the sos package. Check to see if the 'sos' package is installed, as it pro…