Posts filed under “Internet”
nginx 0.9.5
nginx 0.9.5 was released today. It is mainly a bug fix release. Although the 0.9 series is classified as development, I have been running it now for a couple of months and haven’t seen any problems at all.
iprange Consolidation Tool Version 2.0
I’ve updated my iprange tool with some new features. Given a list of IP addresses, it reduces them to a set of CIDR ranges rather than just a single CIDR. How many CIDRs it creates is determined dynamically. You can also specify the threshold subnet bits. If for example, you specify 24, it will only consolidate networks [...]
IP Range Consolidator
I have a firewall on my server that blocks IP addresses when it notices bad activity from a particular IP. As this list grows larger and larger, I’ve been looking for ways to shrink this list. My thought was to consolidate this list so the firewall doesn’t have to scan through a large list of individual IP addresses. If I noticed a lot of IP addresses in the 189.0.0.0/8 range, I could simply put that single IP in the firewall rules rather than 20 individual IP addresses. But this blocks millions of innocent IP addresses as the same time. I figured there should be a happy medium where I can create IP ranges to consolidate the list while blocking as few innocent IP addresses as possible.
ICANN announces all remaining IPv4 address space has been allocated
Yesterday, February 4th, 2011, ICANN announced that their last of the remaining IPv4 address were allocated to registrars. This means that once those registrars distribute those remaining addresses to their clients, there will be no more IPv4 addresses available. It is crucial that networks be moved to IPv6 as soon as possible. The text of the article is reprinted below.
nginx 0.9.4 and load balancing
nginx 0.9.4 was released a few days ago. No major features added, but even though it is labeled as a development version, it has been stable on my server. I haven’t had any problems at all with the 0.9 series yet. On a somewhat unrelated note, I have been looking for a good solution for [...]