I was trying to update one of my server that has some Opensuse repositories and received this error “W: GPG error: http://download.opensuse.org Release: The following signatures were invalid: KEYEXPIRED 1501595774” root@someserver:~# apt-get update . . . ---SNIP---- Ign http://download.opensuse.org Translation-en Fetched 481 B in 4s (97 B/s) Reading package lists... …
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