Category 631
Discussion List
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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… -
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…
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Welcome to Oracle Cloud Infrastructure - Linux!Oracle provides many options to answer your queries on Linux OS in OCI. Customer connect is more than that this is Oracle’s premier online cloud community. Join our disc… -
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…
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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…
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Hanging Connection While Accessing On-Premise CIFS from Oracle Cloud Instance (OCI) Linux InstanceA user is experiencing connections hanging when connecting from OCI to an on-premise file share via a CIFS mount. Trying to access files on the CIFS mount may fail with …
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Logging In to a Linux Host Using SSH Prompts "reverse mapping checking getaddrinfo failed" ErrorWhen trying to log in via ssh from one linux host to a different linux host, the following error occurs: host1 ~]# ssh reverse mapping checking getaddrinfo for host2. […
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Curl Command Returns Error "SSL Certificate Problem: Unable To Get Local Issuer Certificate"SSL Certificates are checked when using applications, such as curl, to connect to web servers. If this check fails, errors such as "unknown CA" and "SSL certificate prob…
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How to Configure a Relay Host in Sendmail "Smart Host" On Oracle Linux 6 and 7Sendmail is a standard Linux OS mail delivery service. A Relay Host can be configured with Sendmail's "Smart Host" option using the following steps: Install the sendmail…
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Yum Update Fails With Error "mdmadm-4.1-8.0.1.el7_9.x86_64: failed to retrieve package"When trying to perform an update on an OCI Instance running Oracle Linux 7, the update fails with the following error: Error downloading packages: mdadm-4.1-8.0.1.el7_9.…
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Using SSH and Client-side Config with Oracle Linux 8The following video explains how to use SSH and Client-side config with Oracle Linux 8:
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Install and Configure VNC Server on Oracle Linux 8The following video describes how to install and configure VNC Server on Oracle Linux 8:
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ASLR is Disabled on an Oracle Linux 7 Cloud InstanceIn standard Oracle Linux 7 OCI instances, ASLR is enabled by default and the corresponding kernel parameter is set to kernel.randomize_va_space = 2 ASLR is a feature of …
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Oracle Linux 7 Cloud Instance Experiences Hangs with Kernel Error "detected conn error (1020)"An Oracle Linux 7 Cloud instance using iSCSI storage, started to experience many OS commands, such as ps or df hanging. The instance logs showed that the iscsid service …
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How to Change MTU Size on Oracle Linux 6 and 7TCP based networks send data in packets via network interfaces. The Maximum Transmission unit (MTU) set on a network device defines the maximum size of a single packet t…
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Possible to install CentOS 9 Stream?I have an Always Free VM.Standard.E2.1.Micro compute instance running OL8. I'd like to re-image it with CentOS 9 Stream. Ideally without deleting and re-creating the ent…
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oci-fss-utils is not part of the repo in OCIDear all, Customers are frequently implementing our File Storage in OCI using encryption, where the package oci-fss-utils is required: https://www.oracle.com/downloads/c…
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How to delete or change the primary VNIC?As I cannot move the primary VNIC to another VCN, I have added a secondary one and would like to make this primary and then delete the old primary. How can I do that? -
Oracle Linux Automation ManagerOracle Linux Automation Manager is based on the open-source projects Ansible and AWX, is a task engine and web interface for scheduling and running Oracle Linux Automati…