Meinberg GPS170PCI Bedienungsanleitung PDF herunterladen (Seite 10)

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4 Pre-configuration steps

This chapter treats the previous configuration settings to be performed for a successfull installation of HADES.

Therefore, these sections prepare the environment for the HADES installation configuring basic things (like

firewall and NTP) that the installation process assumes ready to use.

4.1 IPv6 support on the measuring machines

The operating system, Debian in our case, supports both versions of the Internet Protocol, the IPv4 and the

IPv6. Both are needed by HADES. It may be that the operating system on which HADES is to be installed does

not support IPv6. If this is the case, enable this protocol and restart the machine.

4.2 Firewall configuration

This step describes how to configure the firewall in the measuring points to ensure an unobstructed

communication. The configuration of the firewall is specifically applied to the range of ports used by HADES,

which can be found in the configuration files located in “/data/hades/domain_name/cfgs”. Typically the

port range is from 50000 to 65535. Make sure to enable this range for a proper HADES execution (on the path

previously named, the portion “domain_name” corresponds to the name given to the execution domain of

HADES. If the domain is called “example”, for example, that path would have the form

“/data/hades/example/cfgs”).

4.3 Connectivity test

Before any communication process and generation of public or private keys it is necessary to test the

connectivity between the different sites. In order to do that, a simple traceroute command can be executed

between the points that exchange information. For example, if the user wants to connect to the computer

whose IP address is 192.168.0.1, the traceroute test would be

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Meinberg GPS170PCI Bedienungsanleitung Seite 10