Service interoperability
Interoperability, compatibility and portability, the role of open standards, and the bridges between Linux and Windows: LDAP and Kerberos for identity, SMB for files, DNS, NTP and single sign-on.
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- 5 topics
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Interoperability: what is it?
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The ability of different systems to exchange data and use it together, relying on shared protocols and formats.
A Linux workstation and a Windows server work together because they speak the same protocol (SMB, LDAP, Kerberos), not because one copies the other.
A team recompiles its C application so it also runs on Windows. Which quality is it aiming for?
- Portability
- Interoperability
- Single sign-on
- Backward compatibility
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Portability
Moving the same program from one system to another is portability. Interoperability describes two systems talking to each other, each keeping its own software.
A Linux workstation reads the domain's accounts with the … protocol and proves the user's identity with ….
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A Linux workstation reads the domain's accounts with the LDAP protocol and proves the user's identity with Kerberos.
LDAP queries the directory (who exists, in which groups); Kerberos checks the password without sending it.
Compatibility: what is it?
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The ability of a piece of software or hardware to work in a given environment, often a specific version of another product.
It is said of one product against another ("works with version 11"); interoperability is said of systems talking to each other through standards.