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5-6 noob questions about the network (carefully! the extreme degree of incompetence of the author!)?
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points 1 and 2. Subnet mask.
The following extension is done correctly (/23 or 255.255.254.0).
Perhaps the problems arose due to the fact that on the local computer, from where the router was configured, the network remained with the same mask (255.255.255.0) with all the ensuing consequences in the form of different broadcasts. But this is an assumption.
Not all equipment can work with CIDR masks. These are the masks that are between 255.0.0.0, 255.255.0.0, 255.255.255.0. At me even linksys one was not able.
Therefore, as an option, use the mask / 16 (255.255.0.0)
3. DHCP
No way, if the device received a lease, then until the next. updates, it does not contact the DHCP server.
There is an option to connect or approach each client and restart the network card (I don’t remember how it looks in Windows).
4. Servers
About the gateway: it is quite possible, but it depends on how you access the Internet.
About the database and backups: it is not recommended to virtualize the database, there is very strong I / O and additional. abstraction layer will get in the way.
About the version: it worked for me both in 2012 and 2008R2, but no further than the tests. The combat network runs on VmWare ESXi 5.1. It seems to me that 2012 will be better, because the bugs identified in 2008R2 have been fixed and new features (well, bugs, of course) have been added.
About backups: ideally, allocate a separate machine for this good cause, or better a NAS, which can do a lot.
5. Wi-fi
Specify: do you use WPS at points?
About KAMAZ: you can get hold of repeaters or AP in repeater mode. For antennas: you can use assemblies with amplifiers.
To begin with, everywhere (including all network equipment), write the mask 255.255.0.0, this will allow you to configure the network more flexibly and correctly.
The solution has already been written, but I have a comment.
Are you sure that more than 254 computers in one broadcast domain is normal?
In a good way, it is necessary not to expand the subnet mask, but to beat the network into parts and configure routing.
DHCP
needs to reset the lease on the server in order for clients to renew and take on new addresses. in different systems in different ways.
Regarding the last point: either they suffer with wireless, or give up optics, on each side there is a media converter. A medic can cost from 2,500 rubles a piece, plus a cable. Find a provider with a tool to help finish the optics (because of one line, buying a set seems to be unnecessary). The main problem is to throw the cable itself, a good self-supporting one is expensive, and a simple inexpensive one is not intended for the street. Probably, you can try to shove it into the corrugation, maybe it will survive there ...
6. For Windows 7 - Start -> All Programs -> System Tools -> Windows Easy Transfer. Migrates one user's profile to another
To migrate / transfer data with all the "consequences" / settings from one domain to another or from a group to a domain, and so on, the ProfWiz program is great.
I used it myself when I transferred 150 machines from one domain to another. Convenient and fast. the program weighs less than 1 MB)
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