Hello Jafar, It worked after updating the CA certificates. Thanks, Eduard From: Jafar Al-Gharaibeh <jafar@atcorp.com> Date: Wednesday, 6 October 2021 at 22:35 To: Eduard Margulescu <eduard.margulescu@bigstep.com>, dev@lists.frrouting.org <dev@lists.frrouting.org> Subject: Re: [dev] Certificate error deb.frrouting.org Hi, We use Let's Encrypt certificates, and as far as I can see, things are good in the deployed certificates. Issued On Wednesday, September 8, 2021 at 12:52:30 PM Expires On Tuesday, December 7, 2021 at 11:52:29 AM It is likely that the ca certificates need updating at your end: sudo apt install ca-certificates you can use the tool update-ca-certificates that comes with the package above to update your CAs. Regards, Jafar On 10/4/21 4:23 AM, Eduard Margulescu wrote: Hello team, I want to install FRR on an Ubuntu 18.04 server and I receive this error when I try to use this procedure (https://deb.frrouting.org/) : # add GPG key curl -s https://deb.frrouting.org/frr/keys.asc | sudo apt-key add - # possible values for FRRVER: frr-6 frr-7 frr-8 frr-stable # frr-stable will be the latest official stable release FRRVER="frr-stable" echo deb https://deb.frrouting.org/frr $(lsb_release -s -c) $FRRVER | sudo tee -a /etc/apt/sources.list.d/frr.list # update and install FRR sudo apt update && sudo apt install frr frr-pythontools root@ukr1:~# curl -s https://deb.frrouting.org/frr/keys.asc | sudo apt-key add - OK root@ukr1:~# FRRVER="frr-stable" root@ukr1:~# echo deb https://deb.frrouting.org/frr $(lsb_release -s -c) $FRRVER | sudo tee -a /etc/apt/sources.list.d/frr.list deb https://deb.frrouting.org/frr bionic frr-stable root@ukr1:~# sudo apt update && sudo apt install frr frr-pythontools Get:1 http://security.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB] Hit:2 http://us.archive.ubuntu.com/ubuntu bionic InRelease Ign:3 https://deb.frrouting.org/frr bionic InRelease Get:4 http://us.archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB] Err:5 https://deb.frrouting.org/frr bionic Release Certificate verification failed: The certificate is NOT trusted. The certificate chain uses expired certificate. Could not handshake: Error in the certificate verification. [IP: 194.147.138.41 443] Get:6 http://us.archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB] Reading package lists... Done E: The repository 'https://deb.frrouting.org/frr bionic Release' does not have a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. Is there something you can fix ? Thanks, Eduard _______________________________________________ dev mailing list dev@lists.frrouting.org<mailto:dev@lists.frrouting.org> https://lists.frrouting.org/listinfo/dev