Computing/BioMicro Center: Difference between revisions
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*[http://bioweb.mit.edu/bioit/hosts Master host file for DNA-NET] | *[http://bioweb.mit.edu/bioit/hosts Master host file for DNA-NET] | ||
*[https://biowiki.mit.edu/wiki/index.php/Resources_for_System_Administrators Resources for system administrators] | *[https://biowiki.mit.edu/wiki/index.php/Resources_for_System_Administrators Resources for system administrators] | ||
DNS and NAT on Bionet:<br/> | |||
Neither bionet nor nearstore have NAT entries on the Cisco. The MIT addresses are really | |||
MIT addresses. They also just happen to have interfaces configured on 192.168.4/24 and 10/8 [for the clusters]. Cisco does some magic when you ask it to resolve hosts for which it has a NAT entry. It actually intercepts the incoming DNS reply and re-writes the answer with the internal IP. - from Michael Vezza | |||
Troubleshooting:<br/> | Troubleshooting:<br/> |
Revision as of 11:57, 9 March 2006
Intro
The BioMicro Center’s computing mission is to support a core set of bioinformatics applications and also to provide advanced computational, data storage, data security and data backup services. From BioMicro Center home page.
Accounts
DNA-NET domain accounts give users access to storage on centrally managed fileservers. Data stored on these servers can be access from multiple operating systems. To get a DNA-NET account, send email to biosupport@mit.edu with subject "new user" and the following information:
- First/last name:
- Athena username:
- Lab PI:
- Department:
- Room number/address:
- Phone number:
You can check the status of your request at the BioMicro Support Center You will receive a confirmation email when your account is created.
You must login for the first time using a Windows machine. Your username is your Athena username and your temporary password is your username. Your password must be changed on first login to a different password. This should be your Athena password, for uniformity.
Access
In Windows
Drive X: is mapped to your home directory at \\bionet\endy\homedirs\username
You may want to map drive Z: to \\bionet\endy to get easy access to the top level of the file share hierarchy:
- Right click My Computer
- Map network drive:
- Pick a drive letter: example Z:
- Folder: \\bionet\endy (or use IP address: 18.79.1.147\endy)
In OS X
Press Cmd+K in Finder to connect to server. Then type in: cifs:\\bionet\endy
In Linux
Create a mount point:
# mkdir /mnt/bionet
Add the following line into /etc/fstab:
bionet:/vol/vol0/endy /mnt/bionet nfs rsize=32768,wsize=32768,hard,intr 0 0
Mount the file share:
# mount /mnt/bionet
Off campus
- Download and install VPN client for your operating system from MIT Software Distribution
- Access the lab file share:
- Windows: type \\bionet.mit.edu\endy (or use IP address: 18.79.1.147\endy)
- OS X: press Cmd+K in Finder to connect to server. Then type in: cifs:\\bionet.mit.edu\endy
- Linux: follow instructions above (substitute bionet:/vol/vol0/endy for bionet.mit.edu:/vol/vol0/endy)
Windows users may also be able to join the DNA-NET domain from off-campus. In this case your local username may be not the same as your DNA-NET credentials:
- select: connect using a different username.
- enter you DNA-NET username as follows: yourusername@dna-net.mit.edu
- your DNA-NET password
Description of folder structure
- admin - administrative documents
- backups - backups of shmoo, model and habanero
- projects -
- homedirs - home directories of lab members
- .snapshot - an archive of the whole network file share:
- weekly - last week
- daily - last two days
- hourly - last two hours
Miscellaneous
Storage quota for the lab as of June 9, 2005 is 100GB.
Joining DNA-NET domain:
- Need to have a working domain user account
- Use dna-net.mit.edu as domain name when joining
Local Administrators can install software locally. Automatic updates through MIT SUS (Software Update Services) server.
Domain controllers:
bmc-win2kdc1.dna-net.mit.edu
bmc-win2kdc2.dna-net.mit.edu
Hosts and websites:
- BioMicro Center Wiki (requires MIT personal certificate)
- bionet.mit.edu - FQDN for network file share
- Network Applicance help pages (real-time usage stats for bionet.mit.edu)
- BioMicro Center BioIT Group
- Master host file for DNA-NET
- Resources for system administrators
DNS and NAT on Bionet:
Neither bionet nor nearstore have NAT entries on the Cisco. The MIT addresses are really
MIT addresses. They also just happen to have interfaces configured on 192.168.4/24 and 10/8 [for the clusters]. Cisco does some magic when you ask it to resolve hosts for which it has a NAT entry. It actually intercepts the incoming DNS reply and re-writes the answer with the internal IP. - from Michael Vezza
Troubleshooting:
Tip from Michael Vezza: we use bionet's internal IP address for NFS mounts inside the firewall on all hosts. A simple entry in /etc/hosts should do.
192.168.4.25 bionet.mit.edu bionet 192.168.4.27 nearstore.mit.edu nearstore