Questions tagged [ubuntu-20.04]

Ubuntu 20.04, named "Focal Fossa" is a Long Term Support release of Ubuntu Linux (released on April 23rd, 2020). Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

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Mysql error when I update or try to install any package

Hi I keep getting this error while trying to either configure or even remove mysql-server-8.0 and cant seem to find anything online to help. Even when I do sudo apt autoremove -y I keep getting this ...
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1answer
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how to triage linux disk IO system-wide “hang”

I have a box that is periodically "going out to lunch". Symptoms are anything requiring actual disk IO hang for 30+ seconds, and it appears anything already paged in is unaffected. The ...
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Web page that is authenticated against multiple kerberos authentication servers

Basically I have configured kerberos authentication for a web page hosted on apache server. How can I get users from another kerberos authentication server on another machine to authenticate with the ...
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Unable to install nginx-module-image-filter

I'm running an Ubuntu 20.04 server and got an error while trying to run apt install nginx-module-image-filter: The following packages have unmet dependencies: nginx-module-image-filter : Depends: ...
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Link two LDAP Servers to ensure single-sign-on?

I have a task to configure Single-sign-on service between two Ubuntu 20.04 VMs. I have to configure one LDAP server for each machine and find a way to link the two LDAP servers in order to ensure ...
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1answer
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Mailcow Postfix & MIMEDefang integration

I am running an Ubuntu 20.04 server. I have installed mailcow: dockerized as shown in their documentation which includes Postfix among other tools. The mail server itself works without a problem, but ...
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unknown site pages under domain/sub-domain

few months ago i've created two subdomains pointing to wordpress sites, like i did for my main domain, the only difference is that i found that both of them have strage results in google search. ...
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1answer
22 views

SAP HANA on Ubuntu - xs login results in python error

In installed SAP Hana according to How to install SAP Hana Express Edition 2.0 on Ubuntu 18.04 (Bionic Beaver) (issues have been commented in the blog above) Following this I wanted to explore the XSA ...
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1answer
42 views

Docker without sudo in Ubuntu 20.04?

I've just installed docker on Ubuntu 20.04 and noticed that docker must be run as sudo. [email protected]:~$ docker ps Got permission denied while trying to connect to the Docker daemon socket at unix:///var/...
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1answer
38 views

How can I get ubuntu network interface stats in the terabyte range?

When I query my server's network interface stats using either ifconfig or ip -s they're limited to 999GB and then roll over to 0GB, starting again. Is it possible to change the configuration somehow ...
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Slow initial DNS query to samba domain controller

I have two Ubuntu server VMs joined to a Samba domain, served by a single Ubuntu server domain controller. Both "clients" have an almost identical netplan configuration, defining the domain ...
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1answer
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Postfix fails on incoming SMTP from remote MTAs for local delivery

I am transferring MTA to newer servers running Ubuntu 20.04 LTS. SMTPS is working well thus permitting clients to send mails after authentication. However, when sending mails from remote MTAs for ...
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unattended-upgrades conffile prompt

To enable unattended-upgrades for packages which can show dpkg config change menu, one has to configure apt and dpkg with these config options: Dpkg::Options { "--force-confdef"; "--...
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1answer
95 views

Ubuntu 20.04 cannot ping local zone

I have a server where ping command cannot resolve a local DNS record. I'm stumped. Here is my lab setup. DNS Zone - mydomain.local x.x.x.117 - CentOS 8 Primary DNSserver x.x.x.118 - Ubuntu 20.04 ...
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2answers
99 views

nginx redirect to domain when user enters IP address

I have several domains configured for my websites on my VPS. What I want to achieve is: If a user enters the IP address of my VPS directly on his/her browser, like this: https://X.X.X.X, I want it to ...

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