| 1 | Short description of Evidence control system
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| 2 |
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| 3 | This directory contains the backbone of the control system.
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| 4 |
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| 5 | Config is the configuration server and needs to run before any other DIM
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| 6 | server that requests configuration information is started (if a configuration
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| 7 | request cannot be answered, a server will normally not start). A configuration
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| 8 | file can be given on the command line.
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| 9 |
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| 10 | DColl is the central data collector. It subscribes to all services handled by
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| 11 | the name server and writes them to disk (except those excluded in the
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| 12 | configuration file). It also provides a history service for all DIM services
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| 13 | and a command for logging.
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| 14 |
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| 15 | Alarm can be configured to check all servers for availability and status and
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| 16 | can produce a master alarm.
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| 17 |
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| 18 | The DIMDIR environment variable needs to point to the DIM installation directory
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| 19 | when compiling. DIM_DNS_NODE must point to the name server for any DIM server
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| 20 | to run.
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| 21 |
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| 22 | - Oliver Grimm, 18/1/2010
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| 23 |
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| 24 | Version history
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| 25 | ---------------
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| 26 |
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| 27 | 19/5/2010 Service histories now available via DimRpc from DColl, not via .hist service
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| 28 | When regular expression compiling results in error, State is set to ERROR, not
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| 29 | FATAL. The erroneous expression is ignored in the following.
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| 30 | 25/5/2010 Service history remains available if service itself become unavailable. If not
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| 31 | yet in memory, reading from file is tried. Improved error handling of
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| 32 | history files.
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| 33 | 28/5/2010 Changed name of 'State' service to 'Message' to better reflect its functionality.
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| 34 | Added client information to log file entries.
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| 35 | 30/5/2010 Created Bridge server that repeats services from one DNS to another.
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| 36 | Service quality now also written to slow data file.
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| 37 | 31/5/2010 Configuration file format follows semi-standard INI format.
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| 38 | 7/6/2010 Separated History service from DColl. History format changed, now includes
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| 39 | service format (allows history access also when service is unavailable).
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| 40 | 11/6/2010 Bridge does not forward history service
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| 41 | 17/6/2010 Added SendToLog() method. Changed severity encoding of Message service to
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| 42 | use standard DIM structure of format "I:1;C"
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| 43 |
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| 44 |
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| 45 | Preliminary firewall settings on eth-vme02 (rule 5 for DIM, rule 6 for X11 over ssh)
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| 46 |
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| 47 | Chain INPUT (policy ACCEPT)
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| 48 | num target prot opt source destination
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| 49 | 1 RH-Firewall-1-INPUT all -- 0.0.0.0/0 0.0.0.0/0
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| 50 |
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| 51 | Chain FORWARD (policy ACCEPT)
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| 52 | num target prot opt source destination
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| 53 | 1 RH-Firewall-1-INPUT all -- 0.0.0.0/0 0.0.0.0/0
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| 54 |
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| 55 | Chain OUTPUT (policy ACCEPT)
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| 56 | num target prot opt source destination
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| 57 |
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| 58 | Chain RH-Firewall-1-INPUT (2 references)
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| 59 | num target prot opt source destination
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| 60 | 1 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 255
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| 61 | 2 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
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| 62 | 3 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22
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| 63 | 4 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:2000
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| 64 | 5 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpts:5100:6000 state NEW
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| 65 | 6 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpts:6000:6063 state NEW
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| 66 | 7 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
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