Security

Hi All,

I'm struggling with NAT. i've a linux server behind SRX340... (new installation of SRX340). i'm trying to allow for updates (security and docker) for the Linux server but the server reports the following 

sudo apt update
Hit:1 http://security.debian.org/debian-security bullseye-security InRelease
Err:4 https://repo.zabbix.com/zabbix/6.0/debian bullseye InRelease
  Could not wait for server fd - select (11: Resource temporarily unavailable) [IP: 178.128.6.101 443]
Err:2 http://deb.debian.org/debian bullseye InRelease
  Could not resolve 'deb.debian.org.x.e480dec104db4045380a63f0e672b49e19f6.9270fc4c.id.opendns.com'
Err:3 http://deb.debian.org/debian bullseye-updates InRelease
  Could not resolve 'deb.debian.org.x.c0cabe420c68c04a8308ea409870ce638c0f.9270fc5a.id.opendns.com'
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
219 packages can be upgraded. Run 'apt list --upgradable' to see them.
W: Failed to fetch http://deb.debian.org/debian/dists/bullseye/InRelease  Could not resolve 'deb.debian.org.x.e480dec104db4045380a63f0e672b49e19f6.9270fc4c.id.opendns.com'
W: Failed to fetch http://deb.debian.org/debian/dists/bullseye-updates/InRelease  Could not resolve 'deb.debian.org.x.c0cabe420c68c04a8308ea409870ce638c0f.9270fc5a.id.opendns.com'
W: Failed to fetch https://repo.zabbix.com/zabbix/6.0/debian/dists/bullseye/InRelease  Could not wait for server fd - select (11: Resource temporarily unavailable) [IP: 178.128.6.101 443]

can anyone help?

when i try to pull docker images i get the following:

 sudo docker pull redis
Using default tag: latest
Error response from daemon: Get "https://registry-1.docker.io/v2/": net/http: TLS handshake timeout

can someone help :)