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
Software Development

Monitoring GitHub for new releases

Big sites like GitHub or GitLab are hosting a lot of projects and have numerous of releases a day. And while you as a person can watch a repository on GitHub, you can’t filter out new releases easily. At least not easily findable in the interfaces and checking all the repositories manually because they aren’t […]

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
System Administration

Upgrading from CentOS 7.3 to 7.4

Last month CentOS 7.4 was announced and it was time to rebuild some servers from scratch to make sure all playbooks were still correct as it is always good to know you can quickly (re)build servers when needed. For some other servers, the impact would be big due to huge amounts of data that needed […]

Categories
Security & Compliance

WhatsApp put an emoji their URL

Emoji characters already appeared in DNS, but now also in an URL. And Google shows them perfectly what makes me wonder if all parts of their codebase are ready to handle this correctly or that it is an incident. So the big question is when marketeers and/or criminals start to use this to trick people […]