Answer by Mike Scott for Encrypted network connecting public IPs without...
No, if you use OpenVPN or similar, you will still have to assign other IP addresses for the VPN connections. The only way to do it that technically answers your question would be to assign additional...
View ArticleAnswer by Mike Scott for How is it possible that the same IP is shared...
It's not actually five different websites using your service, it's one server which happens to host five different websites. Your service is used by servers, not by websites. To differentiate between...
View ArticleAnswer by Mike Scott for What exactly is the diffference between Route53...
The most obvious application is split horizon DNS, as the document says. Suppose you have some service on the hostname service.example.com, running in AWS, that is accessed both by your own AWS...
View ArticleAnswer by Mike Scott for Can X-FORWARDED-FOR contain multiple IPs
Yes, if a request is chained through more than one proxy server, then each proxy should add the IP of the preceding one to the existing X-Forwarded-For header so that the entire chain is preserved.
View ArticleAnswer by Mike Scott for How to do Fixed length subnetting?
There are 256 addresses in the given network. That means your subnets can have 64 addresses each, i.e. they are /26 subnets. Everything else follows by simple calculation.
View ArticleAnswer by Mike Scott for Is there any contraindication for using the same...
A need for PCI compliance would be a contraindication. PCI DSS version 3.2 requires that you "Implement only one primary function per server to prevent functions that require different security levels...
View ArticleAnswer by Mike Scott for Can I buy a domain name for a server I do not own?
Yes, you can, because there's no such thing as a "domain name for a server". Domain names are not attached to servers. You can buy any domain name you want, that's not already owned by someone else,...
View ArticleAnswer by Mike Scott for Can you tell who own's an IP address? Like a whois...
You can tell who owns an IP address by looking at BGP routing tables, but that shouldn’t be a concern for you, because the IP address is owned by the company you rent the VPS from, not by you. The...
View ArticleAnswer by Mike Scott for Propagate new DNS records faster
New A records shouldn't have any propagation delay at all, since they aren't cached anywhere. Any DNS client that can't find your new record in a cache should be going direct to your authoritative...
View ArticleAnswer by Mike Scott for What is the purpose of the < (less than symbol)...
It’s to make it read the contents of the file rather than using the literal string “/etc/dovecot/private/dovecot.pem” as the certificate.
View ArticleAnswer by Mike Scott for Trying to remotely access my machine after SSH port...
I’m afraid you’re screwed. It’s unlikely that the licence server has a vulnerability that you can exploit to gain access or reboot the machine. Note that you don’t necessarily need physical access, if...
View ArticleAnswer by Mike Scott for Remote system over satellite link
You could try using mosh instead of ssh — with local echo and support for intermittent connectivity, it ought to make the experience more bearable.
View ArticleAnswer by Mike Scott for Does the power consumed by an air conditioner adds...
Yes and no. Air conditioners obviously do generate heat from their own power usage, but the formulae to calculate how much equipment-generated heat they can deal with already take that into account —...
View ArticleAnswer by Mike Scott for How can i do a redirect with 404 as status code in...
You can’t. 404 isn’t a redirect status code, it’s an error status code, and so web browsers that receive it will treat it as an error rather than a redirect. If you want to say that the page isn’t...
View ArticleAnswer by Mike Scott for What tools, parts, and supplies should be kept in a...
In addition to what’s already been mentioned:Spare cartridges for the label printerAn earthing strapA reel of Cat6 cable for use with the crimping toolsA USB phone charger with Lightning, Micro-USB and...
View ArticleAnswer by Mike Scott for SRV record not working properly?
I think you’re missing a couple of .s. Try:example.example.com. IN CNAME example.com.
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