In last few days, I have been pushing discussion on APNIC & NANOG mailing lists about poor DNS infrastructure in India. Thought to put a quick blog post on the issue. So what’s exactly wrong? To understand what’s wrong, let’s understand how DNS works at core level. DNS relies on a hierarchy model with . (dot) on top which is Root and TLD i.e Top Level Domains below Root, which further follow 2nd level domains which are popularly domain names we use.
I am blogging after quite a few days. Spent bit of time at events like APRICOT 2012 - New Delhi, followed by (unexpected) college start (on time) with heavy fine! Overall time is moving fast. Last week TeamARIN posted a guest blog post from me on DNS in case of IPv6. Apart from that I was excited with small article from RIPE NCC about K-root server connectivity issue as reported by me on mailing list.
Few days back I mentioned how reverse DNS setup of Airtel was incorrect. Sad to say it has not been fixed yet. In meanwhile I was looking at domain name - airtel.in the main domain which runs website for Bharti Airtel’s Indian operations. I am little surprised to find that DNS server of airtel.in are failing randomly! Problem: airtel.in uses 4 DNS servers from Mantra Online - a small ISP which Bharti took over years back.
Yesterday I came across a very interesting case of network hijacking of an ISP from wrong BGP announcements by another network. This issue was reported to NANOG mailing list. Issue was reported by Kevin, Senior Engineer at Altus Communications (AS11325). Problem was that SBJ Media LLC (AS33611) was making a /24 block announcement for specific slices of Altus - 188.8.131.52/20, 184.108.40.206/20, and 220.127.116.11/20 which are allocated to Altus Communications (as per ARIN whois).
Sify is one of really interesting companies. One time pioneer of Indian internet market via chain of cyber cafes. Good old days. Present situation of Sify in consumer market is not significant. Latest earing figures clearly state company is moving towards enterprise segment. Company is quite aggressive in enterprise segment offerings specially datacenters & corporate leased lines. Is consumer market really over for Sify or there’s still some hope? Well, consumer broadband market isn’t really over!