How to make a reservation of channels with white IP at home?

Have Internet from two providers. For example, one buy multiple IP addresses. How to make it so that disabling one service provider to a home server to be accessible from the network of another provider for the same IP?
UPD! As implemented in data Centers?
July 9th 19 at 11:11
5 answers
July 9th 19 at 11:15
Technology called anycast. Using it can be done even automatically to your clients chose a better channel of communication, even when 2 providers available at the same time. However, the simultaneous use of two providerof there pitfalls from exploding TCP sessions, but when used simultaneously, only one provider is no such problem, except switching between them.

For her self-introduction you'll need to buy a block of 256 addresses and register themselves AS (for AS and need 256 addresses, for a smaller unit AS not give). It is now 30 000 rubles per year for addresses like. Plus how many there are still sponsorship LIRŅƒ (I don't think you want to become a LIR).

In this case, in the presence of AS - you sea .... um.. on the knee. Do not have to ask permission from providers (perhaps if they filter out other people's IP, just to warn them to not do it, but it's easier than following the agreement).

For combining use of anycast without existing AS (whether you bought the address) - will have to negotiate with the provider to allow the BGP announcements of IP addresses not belonging to this provider.

And, not sure, maybe Yes, maybe no: but whether this provider else to agree about these things with my own providername in turn, or enough announcements took only your direct provider.
I doubt that DTS is a small loot is))... But do they live... or just sit and pray? - cristopher_Mo commented on July 9th 19 at 11:18
:
DNS can be switched.
It's free.
But for a long time. - earl.Weissnat commented on July 9th 19 at 11:21
Those that I gave you the link - bought the block of addresses actually. - shanna commented on July 9th 19 at 11:24
: Depends, ultimately, the quality of services you intend to provide. Well, or in any pocket of clients expect to. And what the scale of the plan.

You can start without it. - cristopher_Mo commented on July 9th 19 at 11:27
: You may be able to negotiate with providers. One of them allowed you to announce the IP address of another. Just think, it should immediately negotiate with both. - Weston98 commented on July 9th 19 at 11:30
As host, you still need to take a large block of addresses.
Can not buy, and rent. - Weston98 commented on July 9th 19 at 11:33
July 9th 19 at 11:13
No way. How do you imagine that? Only the other IP. To do this, configure the load balancer and DNS to the 3rd party.
Too bad that's the only way. And how it is implemented in Datacentre? - cristopher_Mo commented on July 9th 19 at 11:16
Everywhere sold the same way - go by name, not by IP address. - earl.Weissnat commented on July 9th 19 at 11:19
: implemented using BGP and your AS number. - shanna commented on July 9th 19 at 11:22
July 9th 19 at 11:17
under the same IP in any way. if dropped, then dropped.
you need either an external balancer or configure the DNS TTL to 10 minutes to be able to fly to change A record.
And how it is implemented in Datacentre? - cristopher_Mo commented on July 9th 19 at 11:20
in DC there are load balancers which distribute the load, a complex network infrastructure. failover clusters finally. - earl.Weissnat commented on July 9th 19 at 11:23
What is meant by the load balancer? The house does not skolotit? - shanna commented on July 9th 19 at 11:26
: the balancer is a server that forwards requests to other IP addresses. it only redirects the requests does not pass through all of the content. the meaning of his kolhozah home, if the Internet falls, the balancer does not plow. the right decision is the DNS TTL is 600, and the hand on the pulse (in NS server), the IP dropped, And change the entry to another provider. - cristopher_Mo commented on July 9th 19 at 11:29
DNS TTL is 600? Yes, not on domain names it... I suppose they nafig not needed, this is not a WEB project, not a site... host gives me the login pass and ssh from a specific address. - Weston98 commented on July 9th 19 at 11:32
: I've painted above. if there is no understanding - talk to a professional: tell, show, configure. - Weston98 commented on July 9th 19 at 11:35
July 9th 19 at 11:19
approximately:
in DC there are 1 IP and a few pieces of iron that are configured in occasionally mode (if you die one of the glands, or drop service will not fall)
but if you fall Sam dash, at least be 100 irons - IP issued by Prov will not be available, and the glands will not be available
I take dedicated server from DTS to rent... Drops one of the providers and not all? My server is down at IP? - cristopher_Mo commented on July 9th 19 at 11:22
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who falls? if you have a dedicated server available, nothing to do with DTS. if DTS is unlikely...there is no concept of "dash fell" - there may be a border router to crash, but there they are again, expensive and duplicated - in this case, falling subnet
DTS gives your VPS 1 white IP. availability depends on the efficiency of your VPS - earl.Weissnat commented on July 9th 19 at 11:25
July 9th 19 at 11:21
does
in the DTS is realized through the BGP Protocol, but to buy a sub-mesh is not cheap, podate to her link via the home provider is not real,and throw a commercial link is very expensive.

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