Linux
Discussion List
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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… -
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 Create Additional Users on Linux Cloud Instances Running on Oracle Cloud Infrastructure (OCI)Linux instances running on OCI can have additional users added to them, with ssh access enabled so the additional users can log in remotely to the instances. If addition…
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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…
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How to Check and Repair EXT3/EXT4 Filesystem on Oracle LinuxThe fsck command can be used to check and repair the ext3 and ext4 file systems. This article describes the steps needed to run this command on both these types of file …
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How to Bring up Secondary VNICs in an Oracle Cloud Infrastructure(OCI) Oracle Linux 7 InstanceHow to add a secondary VNIC that is persistent through reboots in OL7 using systemd Unit File 1. Use the OCI Web Console to create and attach a secondary VNIC, see: http…
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How To Set Device Name Using UDEV on Oracle Linux 7.XCustom disk names can be used to make it easier to identify specific storage and how it is being used, such as for ASM storage. A udev rule needs to be created to set a …
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How To Create a Swap File to Increase Swap Memory On OCI Linux InstancesHow to increase the amount of swap space on a Linux system by creating a new swap file. Use root user privileges when running any commands in the following steps. Note C…
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How To Set SELinux to Permissive ModeSELinux can be set in permissive mode where it will still be running but won't be actively enforcing SELinux policy. This article explains how to set SELinux to run in p…
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How To Connect To An OCI Linux Instance Using SSH Password Authentication Instead Of SSH KeysHow to use password based authentication instead of ssh keys to log into a Linux OCI or OCI-C instance. Note SSH key-pair authentication is more secure than password-bas…
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OCI: How to Use Boot Volumes for Oracle Linux Instance RecoveryApplies to: Oracle Linux Cloud Service - Version Oracle Linux 6.0 and later Oracle Cloud Infrastructure Linux x86-64 Goal If an Oracle Linux instance in OCI is not booti… -
My Linux instance got disabled by Oracle for adding port 22I'm having an Oracle Cloud instance with shape 'VM.Standard.E2.1.Micro' and Kali Linux as OS. The instance has been created just few days ago. Yesterday I got a mail fro… -
Using Serial Console Connection to Edit Files or Change User Key in OL instancesThis document assumes you have a working serial console connection to your instance and are seeing the login prompt at the serial console terminal. You can use OCI Cloud… -
OSMS Maintenance WindowsLots of services in OCI have maintenance windows. SaaS has them, so does OICS, DBCS and Autonomous too. What I want to do is a apply a maintenance window to each and eve… -
Listener setup for Oracle on a computing instanceDear friends, I setup Oracle database for testing purposes on a computing instance in Oracle Cloud. Computing instance has public IP, and I am able to ssh to Linux on th…