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HEPNT John Gordon DCI, RAL Integration
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The Unix Enthusiast’s View of NT Unix
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The NT Enthusiast’s View of NT Unix
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Harmony?
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CPUDesktopsFile ServersPrint Servers Mail Web Network A Unix Site WAN NT W98 W95 W31NT
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CPUDesktopsFile ServersPrint Servers Mail Web Network A PC Site WAN NTW98W95NT
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CPUDesktopsFile ServersPrint Servers Mail Web Network A Mixed Site WAN NTW98
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Areas for Integration File Services Printing Network Services Cross-platform use Porting
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NT Client Unix Client Unix Server NT Server SMB NFS Samba SMB NFS Samba SMB NFS SMB Data Flow SMB NFS
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File Access Samba gateways between SMB and Unix in both directions NFS client for NT allows access to Unix servers NFS server for NT allows unix clients access to NT files.
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AFS AFS Client for NT –allows access to the WAN –as well as your own cell –integrated fairly well with NT –windows and linemode interfaces AFS server for NT –available –no experience in HEP
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Printing Most systems support LPR/LPD
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NTS LPD PRT1 Mac LPDUnix NTW NETBIOS LPR
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Printing Using LPR printing gives a symmetry between NT and Unix printing which can be used to: –allow NT users to use an existing Unix printing infrastructure –allow Unix users to use an NT printing infrastructure –allow an easy migration between unix and NT –allow peaceful coexistence between unix and NT (and VMS)
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Network Services SMTP, DNS, DHCP, Dialup All available on NT Web servers and other tools The web is a good example of a recent development where unix doesn’t have the advantage of history. Tools like Frontpage give NT the lead even without MS extensions.
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Cross-Platform Access You have NT and want access to Unix applications and tools. You have unix and want access to NT applications and tools.
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Unixy Things from NT X11 server Unix Environment on NT –Cygnus cygwin32 –Nutcracker –Interix –MS NT Services for Unix add-on pack Port programs to Win32 API
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Cygwin A porting layer for unix applications DLL provides a large subset of unix system calls: Posix.1, ANSI C, BSD and SVR4 services including Berkeley sockets Gnu compiler tools bash shell Maps unix system calls onto WIN32
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NuTcracker Extensive set of libraries which interface unix system calls to WIN32.
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Interix (was OpenNT) Alternative sub-system, not an emulation layer Implements system calls through a Posix subsystem directly into the kernel services, not through WIN32. X11 server and clients, multi-user telnetd, bash shell, gnu compilers.
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NT applications from Unix Get a PC Run emulation software – SoftWindows, WABI Remote access to NT server from unix –NT 3.51 Wincenter, Ntrigue, WinDD –NT4 Terminal Server, Winframe, Wincenter
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Remote Access to NT Citrix MetaFrame MS NT 4.0 Terminal Server Edition X Server (UNIX/PC.) Telnet / rsh WinFrame Client NT, W95/98, UNIX, Mac.. ICA NCD WinCenter for MetaFrame M/S Thin Client NT W/S,W95/98... T.120 X11
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Batch LSF, the current batch system of choice in HEP has support for mixed clusters including unix and NT The only restriction is that the master node must be unix
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Unix in an NT Environment Many unix suppliers provide NT services on unix Digital Pathworks, Sun’s Cascade allow their bigger servers to be integrated into NT environments Allow sharing between unix and NT but not always marketed as such.
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Summary Unix and NT are just operating systems They have many services in common They each have their strengths Most sites will have a mix of services Ideally, use the one which is best for the job… ….but we all have historical and political constraints.
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URLs http://www.transarc.com/Product/EFS/TechSheets/Afsnt/afsnt.html AFS NT http://www.interix.com/ Interix Home Page http://www.datafocus.com/products/nutcracker/" NuTCRACKER Product Information http://www.hummingbird.com/products/nc/nfs/index.html NFS Maestro http://www.hummingbird.com/products/nc/exceed/index.html Exceed http://www.platform.com/ Platform Computing Corporation
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