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4

The term "Best Practice" is getting a bit outdated, as there are a million different ways to achieve something. That being said - avoiding overlapping of IP subnets makes your life a lot easier, as you remove the need for a advanced firewall with double NAT'ing. You're not overlapping now, so I see no issues.


3

If you're looking for the short answer, it (the router/firewall) already knows all it needs to for the TCP "response" from the session table and routing table. A generic example would look like: If it needs to, the router can run an ARP request same as it would anytime it needs to do a MAC address lookup. But it would typically be for local devices, ...


3

Use telnet: telnet <ip> 80 GET / HTTP/1.1 HOST: example.com <return> It should return a 200 return code and your / document for the site example.com.


2

Just add the IP address and the host name (separated by a space or tab) in the hosts file (/etc/hosts on Linux, %windir%\system32\drivers\etc\hosts on Windows). Any application of the system (including your browser) will then use that IP address when you use the specified host name.


2

You have to create a separate A record in your mydomain.com's DNS zone file to point your subdomain to your VPS's IP. subdomain A 5.6.7.8 If you want, you can add the complete hostname subdomain.domain.com as long as it is followed by a . (dot). subdomain.domain.com. A 5.6.7.8


2

Look at the "Caveats & Legal Disclaimers" section on http://cyber-defense.sans.org/blog/2011/10/25/windows-firewall-script-block-addresses-network-ranges and then look at how their Import-Firewall-Blocklist.ps1 script works.


2

There are two methods that can be used to handle ARP traffic when NAT is not used. The traffic can be bridged, and the VM will receive and respond to the ARP request on it own. The traffic can be routed, and the VM's host responds with a ProxyARP response. It is also common to us NAT for a VM. In this case the source address (and possibly port) are ...


1

GitHub encourages forking. The Git repository you cited is a fork that differs from your Debian package. Assuming that you are using libapache2-mod-rpaf for Debian wheezy, inspect libapache2-mod-rpaf_0.6-7+wheezy1.dsc. Format: 3.0 (quilt) Source: libapache2-mod-rpaf Binary: libapache2-mod-rpaf Architecture: any Version: 0.6-7+wheezy1 Maintainer: Sergey B ...


1

This should be what you're looking for: Mask calculator Fll in the IP range or block and the calculator will display the network IP in CIDR notation, usable IPs, IP broadcast address, network mask, and wildcard mask.


1

You can either have the elements of your application be served under a new hostname (app.cluelessclient.com), the server can issue redirects to the client, or the server can redirect requests to your server as a proxy (proxy_pass, etc). This is the general idea for the entire web/app/db model of modern web services.


1

The Classes were deprecated in 1994. That's 20 years ago. Everything is done in VLSM using CIDR notation. What was a "Class C" is now a "/24". The 192.168 RFC 1918 allocation is a /16, as noted in the "16-bit block" remark. Your assumptions are based on something that was abandoned 20+ years ago.



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