We need a secondary DNS for our cPanel server, as we want to have separate nameservers. What is the cheapest vps anyone knows that is hosted outside of Bluesquare House (UK). Global location isn't important.
What happens if your primary nameserver goes down? Meaning that it goes completely off the net, not even denying dns requests but completely ignoring them.
I'd guess that resolvers would query the secondary NS after a specified timeout, but what is that timeout set to? Does it differ from ISP to ISP? How much of a slowdown are we looking at for end users?
would it be possible to have my main box running apache, a second box for dns/other and an offsite secondary dns such as DNS1.PUBLIC-DNS.NET?
Is it possible to authenticate the primary and offsite secondary nameserver so the zone is transferred to the secondary? Would i need to pay for a special service, or do free ones exist? Are there any security implications with zone files being transferred out over the public internet, would a vpn need to be configured or can the process be encrypted via the transfer procedure?
Finally, how would this affect the way the entire virtual hosting works? I know when the nameserver on the host machine serves resolves a name request for a computer trying to browse the site in question, but when the actual http request goes to the web server does it incldue the domain it is looking at also?
I have the following three servers, which I'll call A, B, and C:
Server A - Web hosting server that uses cPanel on CentOS.
Server B - Free subdomain service (similar to afraid.org but on a much smaller scale), using PowerDNS with a MySQL database backend, on Debian.
Server C - Backup DNS server for the cPanel web hosting server, using the free cPanel "DNS Only" on CentOS.
Originally I had just A and B set up (they're two separate VPSes on the one dedicated server, I own the dedi and some friends and I have VPSes on it). Now I've got a VPS at a different data centre, and am using that for C.
To have a secondary DNS server for server B, I believe I can use MySQL replication to replicate the PowerDNS database to another server, then have a PowerDNS install on that server. My question is, is it possible to have server C as a backup DNS server for both server A (cPanel server) and server B (PowerDNS server)? ie. is there a way to check both PowerDNS and the cPanel BIND9 for domains (have them on different ports, and make one query the other if the lookup fails, perhaps)? Or perhaps use both the MySQL backend and the bind backend simultaneously in PowerDNS, and replace bind with PowerDNS (although I guess cPanel wouldn't like this)?
I have two nameservers, each running physically on a different server on different networks. Now I've noticed that whenever the primary NS goes down, clients requesting authoritative NS record lookups refuse to connect to the secondary NS, which I know is certainly up and running. The secondary NS has its own zone files and when you specifically request that server to resolve NS requests, it does the work. But generic NS lookups without specifying the server appears to fail when the primary server is down.
Does anyone know what might be happening here? I know that the domain registrar has both nameservers recorded for the domains I'm trying to resolve, but what is the point of a secondary NS, when it isn't contacted when the primary nameserver is down?
I am developing a site for a new company that will run under a medical engineering firm. I'm currently the only employee and am setting up websites and graphics for the company, but working out of the same office as everyone else. We currently have a VPS through iPower to host our site on, and everything is dandy. However we only own one IP address on the VPS, and I want to be in charge of my secondary nameserver, as I will also eventually use it as a secondary MX server. I have never done this before so I have a few questions about it. My previous experience has all been graphic design and web design, not much on the hosting side of things.
1.Is it possible to run a server on a XP desktop just using Apache or similar software (and a dynamic DNS service)?
2. Would it be possible to run this through the company LAN and router to make it accessible via the web without any serious tinkering on their network? (it has to stay up, and I have no idea what kind of routers or firewalls they are using currently). Basically given the standard setup how hard is it to open up the ports on the router(s)? I've done this only on a home router before, so I assume it can't be much different.
Then on the both servers we setup DNS to accept the a record of servename.mydomain.com points to? This is where I get confused. Does the firstserver DNS say point to itself, and the second DNS server point to itself?
What I wanna do is synchronize both of them using rsync. Once they've got synchronized, the UK will be the primary server and US will be secondary, in case the UK goes down.
my questions are
1. Is it possible that when the UK goes down, the A records for domain.com automatically switches to the US server so it can take over while UK is down.
ie. UK ip 220.127.116.11 US ip 222.111.444.5
domain.com A records = UK ip when up... but when UK is down, A records automatically changes to US ip.
2. And when the UK server goes up again, whatever changes made to US server will be pushed to UK. May it be files, accounts or e-mails.
UK and US are synchronized every 30mins. UK and US both have e-mails 1-10.
Just before the sync time, UK server received an e-mail 11-15 then goes down. So the US Server will take over but do not have 11-15 mails, since it was received before sync time. During the UK downtime, US server received e-mails 16-20.
When the UK server goes up, will it be possible to sync both servers that both of them will have the e-mails 1-20?
I hope you get my point...
If these are not feasible, what can you advice as an alternative solution. All I want is to avoid downtimes, especially with mails as the business relies on this.
Recently I adquired a new HD for one of my cpanel servers because the primary one was almost full at 90%, now i wanna create accounts in the new secondary HD. This HD is already monted as /home2 and ready to work, but I just dont know how to create the new accounts in WHM to use the secondary HD.... can anyone tell me how to do it using WHM ?