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MRC network
An overview of
the workstations, the network and services
Useful
network numbers
If you have a computer with a fixed IP-address
136.155.52.x , where x is a number between 6 and 149 (given to you by the system
administrator), then you also need to specify the following
 | DNS: 136.155.200.90 and 136.155.205.90 |
| Default Gateway: 136.155.52.1 |
| Subnet mask: 255.255.255.0 |
NOTE!
If your computer is a DHCP client (i.e. using dynamic IP addressing) none of
these values should be set manually.
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About our
servers
ant.mrc.ks.se
(Linux Redhat 7.3) [IP: 136.155.52.105]
| NIS master server for all Linux workstations
Accounts, automounting, hosts, netgroups etc.
|
| License server (flexLm)
Gives out license keys for computers running e.g. Matlab It ant
is down no one can run Matlab (however see ladybird below)
|
| NFS server
Allows UNIX/Linux computers to access the shared RAID 5 disk "/raid5"
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| SAMBA server
Allows Windows users to access their Linux home directory (on fly:/export/home)
and the shared RAID 5 disk "/raid5"
NOTE! Only works for Windows computers on the MRC net (136.155.52.x)
|
| Data storage
ant has currently one 250GB SCSI RAID5 disk (named: /raid5), shared via NFS
and SAMBA |
termite.mrc.ks.se (Linux Redhat 8.0) [IP: 136.155.52.106]
| NIS slave server to ant
Keeps NIS services up and running even if ant is down or
rebooted
|
| Backup server
Termite has a 1.2 TB disk named /backup under which the following disk systems
are being backed up daily:
| fly:/export/home
|
754 GB |
Linux home directories |
| fly:/usr/local |
29 GB |
Local linux programs |
| ant:/raid5 |
250GB |
Common data disk |
| ladybird:/export/home |
17GB |
SUN home directories |
| ladybird:/usr/local |
5GB |
Local SUN programs |
NOTE Incremental backups are made
everyday except Mondays. This means that an accidently erased file on one of
these disks may be recovered from the backup until every Monday, when a full
backup is made.
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fly.mrc.ks.se
(Linux Redhat 8.0) [IP: 136.155.52.109]
| DHCP server
Gives out IP addresses between 136.155.52.150 and
136.155.52.254 to any computer @MRC
|
| FILE server for all Linux workstations
Handles the Linux home directories (/export/home) and local
programs (/usr/local)
| /usr/local |
29GB |
Local Linux programs |
| /export/home |
754GB |
Linux home directories
User disk quota: 50GB |
|
NOTE! No user logins allowed
ladybird.mrc.ks.se (SUN Solaris 7.0) [IP: 136.155.52.5]
| NIS+ server
Accounts, automounting, hosts, netgroups etc. for the SUN
workstations
NOTE 1
The number of SUN workstations at MRC are decreasing. The reasons of
continuing maintaining the SUN environment is mostly that
* the image transfer program from the MRC1 scanner has to be run on either
ladybird or cicada
* Automated CD-burning from MRC1 is done to cicada
NOTE 2
The NIS+ for the SUN workstations and NIS for the Linux workstations are
completly separate. If you want to login to both types of systems you need two
accounts.
|
| License server (flexLm)
Gives out license keys for computers running e.g. SUN C/C++,
IDL, Matlab 6.0 (not maintained in the future).
|
| NFS server
Allows UNIX/Linux computers to access the the disk on ladybird
|
| SAMBA server
Allows Windows users to access their SUN home directories and data disks in
the table below.
NOTE! Only works for Windows computers on the MRC net (136.155.52.x)
|
| Data storage
| /export/home |
17GB |
SUN home directories
User disk quota 500MB |
| /usr/local |
5GB |
Local SUN programs |
| /litter |
17GB |
Common data disk |
| /raw_images |
17GB |
Gateway disk for fMRI/DTI
raw data from MRC1
NOTE! Files older than 4 days are erased every night |
| /waste |
17GB |
Common data disk |
| /scrap |
17GB |
Common data disk |
| /child |
8GB |
Disks for users belonging
to Hans Forssberg |
| /martini |
8GB |
Disks for users belonging
to Martin Ingvar |
| /roland |
4GB |
Disk for users belonging
to Per Roland |
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