On 3/4/26 6:18 AM, Dr Rainer Woitok wrote: > But what are the consequences of an expired TTL? The Gentoo mirror I'm > using is updated only every six hours. I just checked at about 11:00 > and its "Packages" file contained > > TIMESTAMP: 1772598198 > > which corresponds to 2026-03-04 05:23:18 GMT+01. So how will Portage > treat this over five hours old "Packages" file with a TTL of one hour?
The server announces a TTL to tell you how frequently you should check for updates, e.g. the binhost while building packages uploads them once per hour until it is done building all the packages in its once-per-calendar-day "emerge -uDN --buildpkg @world" cronjob When within the TTL, portage won't make network queries. When the TTL is exceeded, portage makes a network query, and respects the use of http Last-Modified / If-Modified-Since if the mirror is correctly configured to do them. https://last-modified.com/en/last-modified-header -- Eli Schwartz
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