Questions tagged [oracle-linux]

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Postgresql 6.9.24 on Oracle Linux 8.6

I'm trying to install Postgresql 9.6.24 on Oracle Linux 8.6 as it contains some bug fixes and other patches that we need. This concrete version is not present in the Oracle Linux 8 repositories, only ...
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1 answer
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Update open-vm-tools

As per vulnerability CVE-2022-31676 I'm trying to update my Oracle Linux 8.6 systems open-vm-tools to 12.1.0. However, I'm finding that this package isn't still in the repository, so I have been ...
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1 answer
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How to enable legacy ciphers in modern SSH client [duplicate]

Got a shiny new OL9 and I need to connect to some legacy servers, as in CentOS 5. The OL9 SSH client does not support the legacy ciphers that CentOS 5 supports: [opc@vm1 ~]$ ssh legacyServer Unable to ...
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Why is TCP doing RTO based retransmits (200ms+ wait) vs other fast-retransmission mechanisms?

(Trying this forum after the question was deemed off-topic for Stack Overflow & Network Engineering) I am investigating an issue where we see occasional 200ms+ spikes in a simple tcp client/server ...
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Tsocks replacement for oracle linux 7.9

I used to use a library called tsocks to route traffic through a SOCKS proxy server(a gateway to get out of the company firewall) on an old centos server, which has been replaced by an OL7.9 server. ...
2 votes
1 answer
192 views

Timedatectl "Failed to parse bus message: Connection timed out" with systemd ExecPreStart while SELinux is enforcing

Using Oracle Linux 8.6 we're having an issue with timedatectl but only when it's run by systemd(239-58.0.1.el8_6.3) during ExecStartPre in a .service definition file and SELinux is set to Enforcing. ...
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1 answer
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How to install php-mysql, php-gd and other libraries on Oracle Linux

I am trying to install following libraries on Oracle Linux 8 but not working. On Debian 11 after installing php8.1-fpm I run following command and it works. sudo apt install php8.1-mysql php8.1-gd ...
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Update Oracle java 8 cacerts in ubuntu

I have an old ubuntu ec2-classic machine (v. 14.04) on which a critical application (under migration process) is running. I need to update the certs at /usr/lib/jvm/java-8-oracle/jre/lib/security ...
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Unable to remote to VM instance with Oracle Linux 8.6 and XRDP using Remote Desktop Connection

I created a VM instance on Oracle Cloud, using Oracle Linux 8.6. I added TCP 3389 port in VCN on OCI before installing GUI. I want to install GUI and allow RDP connection to VM instance, so I ...
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Oracle Linux 8 can't resolve host names using DNS

EDIT: FIXED -- My Egress Rules were blocking TCP/UDP 53. I have a stock Oracle Linux 8 server running on Oracle cloud (OCI) with Postfix installed that stopped resolving names through DNS after a ...
1 vote
1 answer
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On RHEL/CentOS/Oracle Linux installer Software Selection screen, what do the packages/environments actually install?

When installing Oracle Linux, at one point you need to choose the software. What actual packages are actually installed when you select Server, Minimal Install, and the subpackages such as Standard or ...
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dnsmasq - failed to bind DHCP server socket: Address already in use - DHCP proxy

I have some issue with dnsmasq. I'm trying to use the existing dhcp that is provide by my router to create a pxe server but dnsmasq give me an errror. /etc/dnsmasq.conf : port=0 log-dhcp dhcp-range=...
1 vote
1 answer
684 views

Postfix not sending emails with no error messages

I have a customer attempting to use postfix to send emails with SMTP. It appears that postfix will parse the email attributes correctly, but before sending the email it begins processing it again. ...
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Oracle Linux 8.5 upgrade with local mirror

I have an Oracle Linux 8.5 system with a local packages mirror to upgrade some internal system. Everything works fine, except for the "dnf/yum upgrade" command; there are problems with ...
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df -h shows / is 100% but du -sh * is not showing where the utulization is [duplicate]

OS: Oracle Linux 7.5 df -h keeps showing that / is 100% full but searching on / with du -sh * is not showing where that utilization could possibly be, any help and suggestions will be appreciated. I ...
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How do I extend the space of /dev/sda3 on Oracle Linux Server 7.9

Disk capacity is at 105GB, but the root directory (/dev/sda3) capacity is only 39GB, I want to increase the capacity. How can we do this? By the way, the OS is Oracle Linux Server 7.9. $ df -h ...
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3 votes
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How to install xargs in container running openjdk:17-oracle

I'm trying to install xargs in a container running openjdk:17-oracle, but I'm unable to figure our what package manager is present in this image. FROM openjdk:17-oracle RUN apt-get install findutils ...
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Oracle Cloud Native Environment setup with Vault faild on validating host names in certificate

I'm setting up OLCNE environment with Hashicorp Vault PKI, I successfully install agent, setup vault, certificates was generated but during module createion I have error that host name not match ...
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Postfix not reading .forward file for local account

I have a Postfix (v2.10.1) mail server running on Oracle Linux 7.9 that forwards mail for LDAP user accounts via the ~/.forward files located in NFS mounted /home/ directories. # postconf forward_path ...
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CentOS Linux and CentOS Stream! Is upgrade from CentOS 6.0 to CentOS stream 9.0 a good option? [closed]

We have CentOS 6.8 production machines and we had a plan to migrate to CentOS 8.0. Having come to know that CentOS Linux 8 EOL: 2021-12-31, also that, CentOS Project produces two variants: CentOS ...
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Move /usr to new partition on running Oracle Linux 7/8 server?

I need to move the /usr directory to a new partition on a running server and delete the old /usr directory without "crashing" the system and no live CD is allowed. The new ssd is already ...
-1 votes
1 answer
957 views

When is EOL for Oracle Linux 8.5

I found the EOL information on Oracle site a bit confusing - https://www.oracle.com/us/support/library/elsp-lifetime-069338.pdf The above link shows EOL for premier support. They offer basic support ...
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django.db.utils.DatabaseError: ORA-12154: TNS:could not resolve the connect identifier specified in OCI

django.db.utils.DatabaseError: ORA-12154: TNS:could not resolve the connect identifier specified within OCI repeatedly receiving errors connecting database ADW(autonomous database warehouse 19c) to ...
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magento 2 installation on OCI oracle autonomous linux composer

I reviewed all the pages herewith the cloud installation guide but OCI installation is not mentioned properly. rpm -q al-config al-config-1.1-1.el7.noarch and uname -a Linux oci-magento 5.4....
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2 answers
609 views

Can't assign IPv6 address to CentOS7 VM on Oracle Cloud

I just can't get to assigning a public IPv6 address to my oracle instance running CentOS 7. I have assigned IPv6 range to the subnet, and another VM running Ubuntu successfully gets the assigned IPv6. ...
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1 answer
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How to install snapd on Oracle Linux 7.9

I am trying to install snapd on Oracle Linux Server 7.9 On many sites I have seen that it has been advised to install spand as follows sudo yum install epel-release sudo yum -y install snapd But I ...
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1 answer
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How to open all ports in Oracle Linux 7?

I'm trying to set up a Outline VPN server on my Oracle Cloud Instance. However I keep getting the error You won’t be able to access it externally, despite your server being correctly set up, because ...
2 votes
1 answer
2k views

What is the lifecycle of Oracle Linux for minor releases?

We are discovering Oracle Linux and considering the move from other RHEL clones. One question that's remains unanswered is: what's the lifecycle of minor releases on Oracle Linux? Do we get updates, ...
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1 answer
723 views

Failing to download metadata with DNF upgrade playbook

i'm trying to learn something about ansible and the automation, unfortunately I'm getting frustrated at the early step. I just tried from debian 10 machine with ansible to write a yaml to upgrade 2 ...
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1 answer
1k views

Update Oracle Linux 7 to 8

Running Oracle Linux v7.9 at the moment, is there a way to upgrade to Oracle Linux v8.3 (or any v8.x) as an in place upgrade WITHOUT installing from a fresh VM?
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Oracle Linux 8.3 can't find libyaml-devel

I'm evaluating Oracle Linux as a CentOS alternatives. During my tests I have to compile a package depending on libyaml-devel but the lib isn't present in the repo. I had the impression Oracle Linux ...
1 vote
2 answers
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OEL8 kickstart install on ESXi - hangs at "Reached target Basic System" - why?

I am trying to install OEL8 on ESXi 7 with a kickstart file. I have the ks.cfg hosted on an http server on the local subnet. The ks.cfg settings are taken from a manually installed OEL VM's anaconda-...
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How to install PHP 8 in Oracle Linux with Apache?

How to install/configure PHP 8 with Apache in Oracle Linux? I couldn't find PHP 8 related repos in Oracle Linux. What i tried so far is: Installed PHP 8 manually by downloading tar. installed httpd ...
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0 answers
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Same VIP different MAC

I am observing this behavior on a dual-homed server that is sending traffic in active/active mode on its 2 links connected to the same uplink switch. The server is running IPMP so it generates traffic ...
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Unable to start nginx service in docker container (Oracle linux 7)

I installed nginx(rh-nginx116-nginx) on Oracle Linux 7 docker image. After launching container, while starting of nginx service, getting following error:- [root@7b5b3ae7d392 /]# systemctl status rh-...
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Is it possible to upgrade Oracle Linux 7 to 8 in place?

I noticed in the Oracle Linux 7 documentation, there's a procedure for upgrading the operating system in place for OL6 -> OL7, but I can't seem to find the same instructions for OL7 -> OL8. Is it ...
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2 answers
3k views

Guest OS loses network connectivity after Host OS connects to VPN

System Configuration: Virtual Box version: VirtualBox-6.1.6-137129-Win Host OS: Windows 10 Guest OS: Oracle Linux 8.1 (Virtual Box Guest Additions not installed in it yet) VPN Software running on ...
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PAM: password authentication failed for remote user

I am executing a command from server1 which would do a remote ssh to server2 and execute certain commands as olcne user. I am seeing some exception in /var/log/secure file wrt to pam. Can someone ...
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1 answer
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Oracle database schema export

I'm trying to run a schema export through expdep on an oracle database: expdp somedatabase/something directory=EXP_DIR schemas=someschema dumpfile=dumpfile.dmp logfile=logfile.log The above command (...
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Add ssh user and protocol works [duplicate]

I want to grant a tech person ssh root access to my Oracle Linux Server 7.7 in the Oracle Cloud Infrastructure to configure something. How can I protocol/log for a ssh user everything he does? I am ...
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Where's my `stub-resolve.conf`?

I'd like to start using systemd-resolved on Oracle Linux 7.6. I'd like to use it in the mode where /etc/resolv.conf is just a symlink to /run/systemd/resolve/stub-resolv.conf having just nameserver ...
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1 answer
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How do I know that a file backup from a Linux server was successful?

Here is the scenario, I have been tasked with backing up production Oracle server running on Linux. According to the process left by the person from whom I took over, I connect to the server using ...
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1 answer
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Oracle Linux 6.8 to 7.x upgrade

I'm trying to upgrade my Oracle Linux OS from 6.8 t0 7.x version by following the steps provided here https://docs.oracle.com/en/operating-systems/oracle-linux/7/relnotes7.5/ol7-upgrade-ol6.html ...
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Mounting Azure File Share on Oracle Linux 7.7

I'm trying to mount Azure File Share in Oracle Linux 7.7 and it doesn't work in the latest kernel 4.1.12-124.31.1.1.el7uek.x86_64 (released Sep 2019). I know that I must use encryption when ...
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3 answers
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How to install Oracle Linux using public oracle repositories?

I've downloaded OL7.5 Boot ISO image and want to install the last version of Oracle Linux. Which address could I use to do it? NOTE: On the picture fields are inactive because of Network should be ...
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Destination unreachable (Host administratively prohibited) when allowed through FirewallD and SELinux

I am trying to connect to my VM which is running Oracle Database XE 18c on Oracle Linux 7.6 and using bridged networking through Oracle SQL developer, however I have found no luck. I have permanently ...
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Oracle Linux update from 7.4 to 7.6 causes gui login loop

I have a VM based on VMWare Workstation 14 After upgrading fresh installed Oracle Linux from 7.4 to 7.6 and reboot, it boots into Oracle Linux Server 7.6 with Unbreakable Enterprise Kernel 4.1.12-124....
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Double bracket missing in Oracle Linux

So I was trying to write a script in an Oracle Linux server and nothing worked. To begin with, there is no double bracket as far as I can tell. Also, the error messages I get are weird. For instance, ...
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1 answer
577 views

Can 2 servers share the same ocfs2 FS via NFS?

The problem is the following: I have 2 servers that have a FS mounted as ocfs2: root [server01]% mount | grep ocfs2 ocfs2_dlmfs on /dlm type ocfs2_dlmfs (rw) /dev/sddlmam1 on /share type ocfs2 (rw,...
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ssh remote command ls hangs when using '*'

i'm having a problem with remote command in ssh. The following commands run just fine: ssh remote_server ls /path/to/folder/ (list all files of the folder - OK) ssh remote_server ls /path/to/...