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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

Disabling SSLv3 in Apache

Yesterday I wrote a post about disabling SSLv3 in Postfix and today we take a close look at Apache. While taking a closer look at the current installation of Apache and the version shipped with Debian 8 that was released a few days back it showed that or the Apache project or Debian has taken […]

Categories
System Administration

Disabling SSLv3 in Postfix

The POODLE attack was made public late 2014 and as most vendors have taken action to solve possible issues related to POODLE. The time definitely has come to close SSLv3 in all parts of the public-facing infrastructure. By default Postfix still only disallows SSLv2 and hopefully, this will change in the form of stricter default […]

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Random

Hack your mailbox and start to declutter

The Dutch postal services have gone from six to five delivery days since 2014 and to be honest without any notice on my side. This as most commercial mail is delivered on Tuesday and Thursday for years now and the streams of non-interesting commercial mail has dropped the last years to acceptable levels. To a […]