Questions tagged [certificates]

Questions about signed certificates and the processes involved (Creation, signing, accepting, viewing)

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How to run “dpkg-reconfigure ca-certificates” inside a Dokerfile?

I have to add my own CA certificate inside a docker container. When I try to run the command "dpkg-reconfigure ca-certificates" inside the Dockerfile it fails because cannot use the ...
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NET::ERR_CERT_AUTHORITY_INVALID on Ubuntu 20.04 after upgrade on several apps but not all

The problem After I upgraded from 18.04 to 20.04, I keep getting NET::ERR_CERT_AUTHORITY_INVALID on Google Chrome and several other apps like Tandem, Microsoft Teams and Microsoft Edge but Chromium, ...
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1answer
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Every tabs in firefox is blank

I'm on Ubuntu 20.04 and I really am a beginner on Linux. The problem: Every tabs opened on firefox are blank When: Every time : the welcoming page is blank and when i try to open a bookmark, type an ...
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44 views

How to noninteractively add Certificate Authority (CA) ssl certificates from script

I have an ansible play that calls a script. The script copies .crt files for my private key infrastructure in to /usr/share/ca-certificates/my.domain.tld Then the script calls: sudo update-ca-...
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Ubuntu local vm setup https on gitlab

I am a vm on my machine. I currently have it hosting gitlab ce. I have it with a dns name I tried using let's encrypt to create a certificate for my dns name but when I add it to my gitlab ...
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1answer
286 views

Unable to install MikTex on Ubuntu 20.04 [duplicate]

I uninstall MikTex because texstudio can't update package automatically. I want to install it again. But I got this error instead when I launch sudo apt-get update: Hit:1 http://pl.archive.ubuntu.com/...
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Enable Ubuntu Livepatch when a corporate root certificate is installed

Ubuntu 20.04.2 LTS I am trying to enable livepatch with the following command sudo canonical-livepatch enable MYKEY I get 2021/02/21 11:41:00 error executing enable: cannot enable machine: cannot ...
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30 views

Delete ca certificate not working?

I have added a root ca in my ubuntu machine by using the following commands: mkdir /usr/local/share/ca-certificates/custom/ mv myserver.crt /usr/local/share/ca-certificates/custom/ update-ca-...
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How to fix apt update error after adding Atom repo?

I am following the instructions at atom.io in order to install atom on Ubuntu 20.04. The instructions: To install Atom on Debian, Ubuntu, or related distributions, add our official package repository ...
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1answer
56 views

How to make Firefox trust my companies certificate on my machine?

I would like to use Mozilla Firefox on Ubuntu 20.04, the problem is to make Firefox trust my companies certificate. First I installed the root/CA certificate as described in this answer That alone ...
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1answer
109 views

why update-ca-certificates deletes all my CA Certificates?

Every time I update the OS or if I execute manually the ca-certificate update on my 3 pc, I get: Updating certificates in /etc/ssl/certs... bash: /opt/systemScripts/sBin/test.sh: No such file or ...
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Add trusted root CA globally

I am behind corporate proxy that replaces root CA certificates on some websites. I did cp corporate-certs/*.crt /usr/local/share/ca-certificates/corp sudo update-ca-certificates --fresh I do see that ...
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1answer
63 views

CAC USB reader not allowing authentication, Ubuntu 20.04

I am with the US government and use certificates on a "CAC" smart card to authenticate on web sites. I have a USB smart card reader (SMC Microsystems), which is detected by the OS, but the ...
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Grub problem after updating kernel

my grub isn’t working. I recently updated my kernel and i think its the start point of this errors:
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Does GnuPG store the revocation certificate in the keyring?

I generated a revocation certificate in GnuPG. If I repeat the procedure, will I get a different revocation certificate? In case it doesn't, does the certificate gets stored in the GnuPG keyring?
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How to install a .cer certificate on linux to use citrix receiver

I'm new to Linux and using Citrix Receiver to work from home, and can't launch it without a .cer file. I have downloaded the.cer file to my computer, it's saved on my desktop and have been attempting ...
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63 views

Certificate verification failed: SecurityAppliance_SSL_CA

I'm getting this "Certificate verification failed" after sudo apt-get update: My organization uses Sophos firewall. Will SecurityAppliance_SSL_CA.pem certificate help me solve this?
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1answer
967 views

Integrity: problem loading X.509 certificate -65 before login

I was able to clean any error displayed before log into Ubuntu 20.04.1. I am using the newest Kernel version 5.9.1 , because my Lenovo had issues with graphic drivers at actual stable version. I am ...
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842 views

Installed ubuntu 20.04 from 0 - x509: certificate signed by unknown authority error on every app

I recently installed Ubuntu 20.04. Considering the time that passed since its release I thought it would be stable. After installing it, I go to Snap Store (named Ubuntu Software) and I see that ...
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1answer
337 views

How does installing ca-certificates-(mono/java) affect the certificate store?

I installed the mono-complete package and was very surprised to see these lines on the installation log: Processing triggers for ca-certificates (20190110ubuntu1.1) ... Updating certificates in /etc/...
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39 views

Root certificate not completely honored in Kubuntu 20.04

I have a root certificate that I installed by the following command curl -sL http://netfree.link/dl/ubuntuCertInstallNetFree.sh | sudo -E bash - Recently it stopped being honored automatically. When ...
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how to implement SSL certificate on ubuntu

I have to implement SSL in my apache2 ubuntu server, given by this kind of file: blabla.pfx blabla.key blabla.crt CARoot.crt CAIntermediate.cer CABundle.crt I ever implement SSL using open SSL on ...
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324 views

How to reset an OpenConnect / NetworkManager pinned certificate

I have installed an OpenConnect server (ocserv) so I can connect to my home systems. Initially I used the valid LetsEncrypt provided certificate for *.example.com, later I changed that to vpn.example....
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Install Certbot on ubuntu 20.04

I've been following a couple of tutorials to add ssl to my server (node application). I tried installing Certbot with the following line on by Ubuntu 20.04 server: sudo add-apt-repository ppa:certbot/...
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63 views

Problem connecting my VPN with Network manager Ubuntu 18.04

When trying to add the contents of my OpenVPN file in the network manager I get this
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1answer
858 views

installing QGIS on Ubuntu 20.04

I installed QGIS on Ubuntu 20.04, and it doesn't really work. I used the advice from the QGIS website. On the terminal, I have a problem with the QGIS key and keystrings. When entering these commands: ...
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How to use SSH Certificates without unique DNS names?

I have deployed a bless https://github.com/Netflix/bless based SSH certificate authority. I would like to log into any of my instances but they will be in an auto scaling group and will possibly not ...
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1answer
236 views

Cannot Transfer File using scp command for certificate authority

So I trying to setup OpenVPN on my Ubuntu 20.04. I am using this online article (How to setup a OpenVPN server on Ubuntu 20.04) that was recommended to me to set up a VPN with the Certificate ...
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1answer
248 views

vsftpd error with self-signed certificates in Ubuntu 20.04

I am setting up an FTP server and I need to use my own self-signed certificates for FTPS. When I configure vsftpd to use my self-signed certificates it fails to start. The exact same setup works ...
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169 views

xfreeRDP using self-signed certificates

I would like to use a self-signed certificates and connect to my windows rdp server(2019) through xfreerdp v2 So i have created a self-signed certificates and i mentionned the Ip adresse in the FQDN ...
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2k views

How do I re-install a ca-certificates after removing it in Ubuntu 16.04?

First of all, I got this error, E: Sub-process /usr/bin/dpkg returned an error code (1) because of some problems in package ca-certificates. Then finding this blog, it mentioned some methods. I used ...
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68 views

SSL handshake keeps failing even after adding certificates to local truststore

When executing wget https://docs.conda.io/projects/conda/en/4.6.0/_downloads/52a95608c49671267e40c689e0bc00ca/conda-cheatsheet.pdf I have this error: --2020-06-03 20:55:06-- https://docs.conda.io/...
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1answer
1k views

How to restore my certificates at /etc/ssl/certs?

Suddenly my /etc/ssl/cert directory is almost empty and I have no idea how it happened. there were about 400 (symbolic links) left yesterday. Lots of things don't work any more (including apt ...
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1answer
26 views

Created new pair of GPG Keys good for 1 wk - Why do I need to make Revocation Certificate

Testing GPG encrypted emails, I understand the reason for Revocation Certificate if you are making one for long time. Beings I'm trying to setup Thunderbird & Enigmail I thought I would start with ...
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1k views

CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile

I am trying to upgrade a Ubuntu 14.04 LTS server to 16.04. But when ever I ran sudo http_proxy="http://usrid:pwd@proxy...mcom:8080" apt update it returns following error: Error message Err http://...
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2answers
430 views

MITM-attack? I have an untrusted certificate dns.hinet.net

Since a few weeks a pop-up window appears (sometimes) after start-up of my Ubuntu 16.4 system, see this picture: The title in the window bar says: "Untrusted certificate". The 1st line in the window ...
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2answers
58 views

Location for SSL certificates, how to secure them?

I have a nodeStatic app on an ubuntu server. A domain links to the server. Now I need to add SSL certificates: var fs = require('fs'); var options = { key: fs.readFileSync('ssl/privatekey.pem')....
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573 views

Apache2 Ubuntu 16.04 installing SSL certificate not working

some background info, I was originally running this site on Windows hosting with GoDaddy it was working with SSL. I am now setting it up with Ubuntu 16.04 on a GoDaddy VPS. I have got my site up and ...
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1answer
2k views

Install crt certificate on Ubuntu 18.04

I have a .crt certificate and I've tried installing it in .local/share/ca-certificates (I've created this last folder because It didn't exist) and put my ca.crt into it , then I executed this command :...
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2answers
4k views

How can I get the ca-certificates.crt?

My docker get error "x509 certificate signed by unknown authority" and then i find that my ubuntu contianer missing file ca-certificates.crt on /etc/ssl/certs/ or /usr/local/share/certificates/. The ...
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1answer
439 views

How do I install an SSL certificate in order to serve a local web application?

I need to install a local SSL certificate so that the browser trusts it. The tutorial Running Angular CLI over HTTPS with a Trusted Certificate has instructions for OS X and Windows, but not Ubuntu. ...
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3answers
375 views

Nginx SSL configuration setup

I'm using Nginx on Ubuntu 18.04 with LEMP installed, recently I renewed my SSL certs therefore I can see some files with named . SSL cert related files last 2 files comes with .zip private.key ...
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3answers
1k views

“The PKCS #12 operation failed for unknown reasons.” when importing personal digital certificates into Firefox

I am trying to import a personal digital certificate to Firefox (under Your certificates) and I am getting this error: The PKCS #12 operation failed for unknown reasons. I am using Firefox 72.0.2 ...
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1answer
320 views

Git certificate validation error, but openssl succeeds

$ git clone https://stash.z-hub.io/scm/zp/z-push.git Cloning into 'z-push'... fatal: unable to access 'https://stash.z-hub.io/scm/zp/z-push.git/': server certificate verification failed. CAfile: /etc/...
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1answer
2k views

Are the DigiNotar certificates supposed to be present in Firefox in a clean install?

Just installed Ubuntu 18.04 LTS, and noticed in Mozilla Firefox 70.0.1 (64-bit), two strange certificates that rang a bell for some reason. Not wanting to trust anywhere on the web for information in ...
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1answer
1k views

openvpn error outines:SSL_CTX_use_certificate:ca md too weak

On Ubunto 16 I've configured openVPN with password with Certificate (TSL) my config file is: dev tun remote XX.XX.XXX.X ca ca.crt cert user_name.crt key user_name.key ns-cert-type server It does ...
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1answer
53 views

How do I let only specific PCs connect to via SSH?

I have an Ubuntu Server and I want only a few PCs to be able to connect to my server via SSH (on port 22). Is there a way that I can create an certificate that I would install on the few PCs that are ...
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1answer
711 views

Problem installing ACS ACR38T (smart card reader) on Ubuntu 18.04-64

After struggling for a few hours, I thought it was time to ask the community. I am trying to install an ACS ACR38T Smart Card Reader on Ubuntu 18.04-64 (see https://www.acs.com.hk/en/products/1/acr38t-...
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1answer
3k views

Cannot add APT repository: SSL handshake failed

I followed the procedure described here https://packages.sury.org/php/README.txt for adding an APT repository that has some packages i need to install ( for example i need php7.0-dev). sudo apt-get -...
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1answer
1k views

wget unable to locally verify the issuer's authority but curl works

After updating from Ubuntu 16 to 18, wget stopped working (among other stuff), while curl works properly. $ curl -v https://google.com ... * Server certificate: * subject: C=US; ST=California; L=...

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