Categories
System Administration

Docker on Fedora 31 and 32

For “Developing inside a Container” with Visual Studio Code, one of the requirements is to use Docker Community Editon as the version of Docker that ships with Fedora is too old and misses certain features. Also the new Docker alternative Podman from Red Hat isn’t supported by Visual Studio Code. After installing Docker CE on […]

Categories
Software Development

PowerDNS service for get coordinates for IPv4 addresses

Bert Hubert from PowerDNS made an interesting announcement today. Retrieving the coordinates for an IPv4 address with just a DNS query. New PowerDNS service: get coordinates for every IPv4 address: $ dig -t txt https://t.co/gBtMoc9U69 +short“52.382401 4.899500” Based on @maxmind data. Uses reversed IP address, so this is 149.210.160.248. — Bert Hubert ?? (@PowerDNS_Bert) December […]

Categories
System Administration

Removing SPF Resource Records

With the creation of RFC 4408 also new a record type 99 for DNS was created to identify SPF Resource Records. It was advised to have both TXT and SPF records in DNS with the same content.  RFC 4408 was obsoleted by RFC 7208 in 2014 with paragraph 3.1 stating the following: SPF records MUST be […]

Categories
Security & Compliance

Emoji in URLs are probably a bad idea…

On the dns-operations mailing list, there were already discussions about parties who bought domains like ?.com (xn--e5h.com), but the following is also an interesting development. When will we find pages with “special” Web Open Fonts and that become active when you press Ctrl-Shift?

Categories
Internet, Unix en security Life and society

Blocking the piratebay

In a previous post, it became clear that censorship in The Netherlands has started. Due to the nature of the Internet and how it has been implemented in most lands, it means there is no central point of control to stop all to an IP-address. This means every network owner needs to take action, but […]