What's new?

• 28-11-2010: LDG 5.2 Server/Client packs are now in production repos. Scientific Linux 6.1 and Debian Lenny are fully supported and in Production.
• 05-11-2010: Testing phase ended. All LDG Server/Client are now in production repos.

Main components of the LDG-5.x release

• 04-10-2010: The installation procedure is shifted from using Pacman in favor of the use of native packaging via RPMs, DEBs and Mac bundle installer.
  - LDG-5.x is based on a subset of Globus packages installed from: EPEL6/Debian-Lenny repositories, a couple of VDT packages and one OSG certificate pack:

  ldg-client, ldg-server, ldg-cert-util, ldg-core, ldg-version,
  finger, globus-authz, globus-authz-callout-error, globus-callout, globus-common, globus-common-progs, 
  globus-ftp-client, globus-ftp-control, globus-gass-copy, globus-gass-copy-progs, globus-gass-server-ez, globus-gass-transfer,
  globus-gatekeeper, globus-gfork, globus-gram-client, globus-gram-client-tools, globus-gram-protocol, globus-gridftp-server,
  globus-gridftp-server-control, globus-gridftp-server-progs, globus-gsi-callback, globus-gsi-cert-utils, globus-gsi-cert-utils-progs,
  globus-gsi-credential, globus-gsi-openssl-error, globus-gsi-proxy-core, globus-gsi-sysconfig, globus-gss-assist, globus-gssapi-error,
  globus-gssapi-gsi, globus-io, globus-openssl-module, globus-openssl-progs, globus-proxy-utils, globus-rsl, globus-rsl-assist,
  globus-usage, globus-xio, globus-xio-gsi-driver, globus-xio-pipe-driver, globus-xio-popen-driver, myproxy, myproxy-libs, 
  osg-ca-certs, uberftp, voms, voms-clients,
  vdt-gsi-openssh-client, vdt-gsi-openssh-server, vdt-mechglue-ncsa
  
  and some other dependencies...
  

  - LDG-server size ~ 12MB (for CentOS5.3). LDG-client size ~ 5.8MB (for CentOS5.3).
  LDG-server size ~ 8.2MB (for Scientific Linux 6.1), LDG-client size ~ 6.8MB (for Scientific Linux 6.1).

Supported Linux/Unix Platforms

• Scientific Linux 6.1 / CentOS 5.3 (RHEL5) Installation instructions [for CentOS5.3: 32 & 64 bit; for SL6.1: 64bit only]
• Debian 5.0 Lenny Installation instructions [32 & 64 bit]
• MacOS X 10.5 Leopard/10.6 Snow Leopard Installation instructions for Client [32 & 64 bit]

Instructions for Scientific Linux 6.1 / CentOS 5.3

Installation of LDG Server 5.x

1. Important: To ensure stability in the software used, please, install packages only from the (LDG maintained) FROZEN mirrors of the Scientific_Linux and EPEL repositories [any other repositories must be disabled to avoid conflicts during the installation of LDG packages]. To set up your linux machine to fetch software from these frozen mirrors, please, follow the steps listed at Administrator Instructions.
2. To set the correct software repositories to download the LDG packages, follow steps 1 & 2 from the Client installation. Verify that you have the file '/etc/yum.repos.d/ldg.repo' with the VDT Production and Testing repositories set to "enable=1". To verify that the right repositories are set, execute the command yum repolist. You must see something similar to

   repo id             repo name                                             status
   
   CONDOR-stable       Condor Stable RPM Repository for Redhat Enterprise Li     2
   OSGgoc              OSG GOC Yum Repository                                    1
   EPEL6               Extra Packages for Enterprise Linux 6 - x86_64        6,348
   SL6.1               Scientific Linux 6.1 - x86_64                         6,251
   SL6.1_SecurityUps   Scientific Linux 6.1 Security Updates - x86_64          543
   VDT-Production-sl6  VDT RPM repository - Production versions for SL6          1
   VDT-Testing-sl6     VDT RPM repository - testing versions for SL6            21
   lscsoft             LSCSOFT_Production                                      108
   lscsoft-testing     LSCSOFT_Testing                                          54
   repolist: 13,510
   

   in other words, the repositories: Condor, Scientific Linux (LDG Frozen mirror), EPEL 6 (LDG Frozen mirror), VDT and LSCSOFT must be enabled.
3. To see which (meta)packages you will install, execute

   yum groupinfo ldg-server
   

You must see

Group: LDG SERVER
 Description: VDT rpm packages for the installation of LIGO Data Grid server.
 Mandatory Packages:
   ldg-client
   ldg-server

These metapackages will, in turn, fetch the rest of the Globus, VDT, Condor, OSG packages.
4. Install the server by executing

   yum groupinstall ldg-server
   

   Please, note that the OSG CA Certificates will be installed in /etc/grid-security/certificates directory.
5. Run

   ldg-version
   

   and verify that you see sth similar to

   LIGO Data Grid:      5.2
   
   Platform:            Scientific Linux 6.1
   Hostname:            lscsoft64-sl61.phys.uwm.edu
   Date:                Mon 28 Nov 2011 11:36:19 CST
   
   Globus Toolkit:      5.0.3
   GSI-OpenSSH:         5.9p1-hpn13v11 (GSI 20110906)
   MyProxy:             5.3
   OSG CA Certificates: 1.24
   

6. To use openGSISSH server, the installed native openssh-server must be turned off,

   service sshd stop
   service gsisshd start
   

   All of the Grid ssh tools have the prefix gsi, e.g., gsissh, so that they can co-exist with the standard OS versions.
   
   By default the gsisshd is configured (port 22) to use GSI Authentication only (only users with valid proxy can log in), so to regain wider 'SSH' access by allowing Password authentication (and if wanted, X11 Forwarding or RSA/DAS, etc.) configure the /etc/gsisshd_config file accordingly; for example, by adding

   X11Forwarding yes
   PasswordAuthentication yes
   

   and then restart the service,

   service gsisshd restart
   

7. To start the GridFTP server (default port 2811), do

   service globus-gridftp-server start
   

Supported by the National Science Foundation. Any opinions, findings and conclusions or recomendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation (NSF)

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