CERI Computer Network Facts (and some opinion)

Last updated 20110616.

Bob's notes on the mac lab

Table of Contents

  1. QuickLinks
    1. ITD links (software, mail, etc)
    2. CERI links
    3. Other
  2. File Exchange
    1. Gaia
    2. umdrive
    3. ftp
  3. Email
    1. iam
    2. client setup
    3. filters
    4. lists
    5. tips
  4. Available Software
    1. Mac
    2. Sun
    3. PC
    4. University
  5. General Use Computers
    1. Sun
    2. PC
    3. MAC
  6. Printers
  7. How to get new software and hardware
  8. Installing software
  9. Diskspace
  10. Other hardware
  11. Data Backups
  12. Off campus access
  13. CERI Computing Policy
  1. QuickLinks
    1. ITD links (software, mail, etc)

    2. Most of these links require the UofM Single sign-on (sso). The same uuid and password as your email.

      UofM HelpDesk for submitting help requests (aka ARS).
      iAM The UofM identity management site for managing email preferences, changing ph password, etc.
      ummail for receiving and sending email.
      umdrive for exchanging files both internal and external to the UofM.
      UofM Tech support
      for U licensed software, tigerlab locations, computer guides, etc.
      HPC, for information on the UofM High Performance Computing Lab.
      Spectrum, for viewing and modifying any information the UofM has (with notable exceptions).
      Training for Banner (aka Spectrum).
      Information Technology Division (ITD). The UofM offers a wealth of IT services and information. Explore the ITS page to learn more about them. Voice Mail Instructions.
    3. CERI links
    4. CERI internal page includes abstracts database, CERI handbook, forms, etc. Accessible only from a computer located at CERI.

      These tutorials are getting long in the tooth. Students should consider enrolling in CERI 7104, Data Analysis in Geophysics.

      An old, though mostly still relevant short GMT tutorial.
      An old, though mostly still relevant UNIX introduction.
      CERI Tools of the Trade.
      Getting CERI Seismic Data.
      Chuck Langston's Tutorials include SAC, Matlab, and MatSeis.
      Instructions for downloading data from IRIS from Buck Grant.
    5. Other
    6. SAC at Lawrence Livermore NL
      ORFEUS software page contains a ton of useful links to applications on several platforms.
      Blastwave.org has a ton of free software for solaris.
      Please email useful links to Mitch.

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  2. File Exchange
    1. Gaia
    2. Networked macs have home directories in /gaia/home which is also /gaia/macspace from the suns. Likewise networked suns have home directories in /gaia/home with is also /gaia/sunspace from the macs.

      If you don't already have shortcuts to this space, then right click on start and left click on Explore. In the explorer address area type \\gaia-ceri. You'll see a couple special directories here not all of which will you have write permission.

      One directory (or folder in PC speak) of importance is gaia (that's right, \\gaia-ceri\gaia). In there are all the disks for the Sun's that you can access from the PC's (e.g. \\gaia-ceri\gaia\arwen\d1 contains all the directories in /gaia/arwen/d1). It doesn't matter what's in a file so you can put PC files here and get them even if you never work with them on a sun. We do not currently have a mechanism to do the reverse (that is access PC disks from the sun).

      One directory in \\gaia-ceri\gaia of note is home (that's right, \\gaia-ceri\gaia\home) which is the same as /gaia/home if you're on a sun. This is where your sun home directory is. If you don't see your directory then just type in \\gaia-ceri\gaia\home\uuid where uuid is your user id. It will then automagically appear.

      From the sun's, you access all the sun file systems using /gaia. Your home is in /gaia/home. Disks on specific machines are in /gaia/machine_name. You can not access PC file systems from the suns.

      Note that most directories are mounted with a gizmo called automount. That means that the disks aren't actually mounted until someone or some program accesses it. So if you ls /gaia/home you won't see all the home directories; only those that have been recently accessed. You can cd into a particular directory and the automounter will mount the directory and you'll see it with ls.

    3. umdrive
    4. This is a nice utility to share specific files. You can make them so that everyone in the world can see them, only people with UofM accounts can see them, or only specific people at the UofM can see them (same applies to write permission). It gets a bit clunky if you have a bunch of files and very time consuming if you want to upload an entire directory tree. But otherwise its pretty good. Try it at umdrive.memphis.edu.
    5. ftp
    6. If you really have to, CERI does maintain an anonymous ftp server. There are two areas to it: upload and download.

      The download area is where you can give files to someone else. In gaia space it is in /gaia/home/ftp/download. Make a directory there named for your uuid. Then copy any files you want to share with someone else into that directory. In order for them to get the files, they ftp to ftp.ceri.memphis.edu, log in as anonymous, and use their email address as the password. They then cd to download. Please remove your files after the person gets them so that this disk doesn't fill up with year old trash.

      The upload area is where other people can give files to you. In gaia space it is /gaia/home/ftp/upload. Note that when people put files there they can not see them with ls nor can they download them. Move them from /gaia/home/ftp/upload to your local directory. Files in the upload area more than three days old are automatically deleted.

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  3. Email

  4. All email is handled by the University Information Technology Division (ITD). ITD now uses Microsoft Live @ edu for email. The blessed client is, of course, Outlook. Some people use other clients (e.g. entourage, mozilla, pine) with varying levels of success. If it doesn't work, you're likely to get a blank stare from ITD if you're not using Outlook.
    1. iam
    2. This is where you can do things like change your password, forward email to a different account, establish a vanity address, etc. Its located at iam.memphis.edu. What's a vanity address? Its something that makes sense to humans (e.g. your.name@memphis.edu) instead of the goofy 8 character uuid you get assigned.
    3. client setup
    4. Check the ITD instructions page at http://www.memphis.edu/umtech/training/email.php to learn how to setup and use your client.
    5. filters
    6. I don't know how Live@EDU filters spam. But I haven't noticed a signficant increase in spam since the migration. So it must be at least as good (or bad depending on your perspective) as message marshall (what was formerly used)>
    7. lists
    8. ITD maintains a listserver and CERI paprticipates in a few of them. All lists are @memphis.edu.
      3 CERI lists
      ceri_studentsAll CERI students
      ceri_staffAll CERI staff
      ceri_facultyAll CERI faculty
      The above lists are also on the CERI phone list that is updated and distributed monthly.
    9. tips
    10. Tips are always appreciated. Greenbacks are best.

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  5. Available Software
    1. Mac
    2. See the software inventory spreadsheet
    3. Sun
    4. See the software inventory spreadsheet
    5. PC
    6. See the software inventory spreadsheet
    7. University
    8. The University Software Page contains software available to faculty, staff, and students. Please pay attention to and comply with the license agreement relevant to the application.

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  6. General Use Computers
    1. Sun
    2. There are three "headless" Workstations in the maclab available for ssh logins: tesuji, segovia, and arwen. There is one Quad cpu server available: enigma. Note that sparc workstations are no longer available from Oracle/Sun and its unknown how long they will continue producing sparc based rack servers.
    3. PC
    4. There are 6 PC's in the maclab on the UofM AD network available to anyone in the CERI workgroup. They are ceripl01, ceripl02, ceripl03, ceripl04, ceripl05, ceripl06.
    5. Mac
    6. There are 13 macs in the maclab: ceriml01, ceriml02, ceriml03, ceriml04, ceriml05, ceriml06, ceriml07, ceriml08, ceriml09, and ceriml10, ceriml11, ceriml12, and (surprise!) ceriml13. See Bob's notes on the maclab.

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  7. Printers

  8. Please don't waste paper. Each house has one or more printers available. I can never remember the address of each house so I'll call them house 1-4 here. House 3 is the most westerly nearest to Zach Curlin. House 2 is the next house east to house 3. House 1 is next to house 2. The long building in the rear where the library is located is house 4. The printers are:

    House 4
    3892_hpcolorColor printer house 4 Mac Lab.
    3892_gradB&W in house 4 Mac Lab
    3892_newplotLarge format plotter in house 4 Mac Lab
    House 3
    3876_hpcolorColor printer in house 3 outside Conference Room
    3876_gradB&W in house 3 Grad Area
    House 2
    3890_copyB&W in house 2 Copier Room
    3890_extenB&W in house 2 Chris McGoldrick's Office
    House 1
    3904_hallwayB&W in house 1 hallway
    3904_tekColor printer in house 1 hallway

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  9. How to get new software and hardware

  10. The same way you get anything else. You get a quote and include it along with a memo and account number to Michelle Smith. The CERI computer staff can assist you in getting quotes and indeed to assure the proper educational discount, you should avail yourself of this. The computer staff however, do not have purchasing authority.

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  11. Installing software

  12. If you need administrative privileges you can't. In that case you will need to convince Mitch Withers that this is something of general use to CERI. It will then be installed on all publicly available machines of the appropriate platform.

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  13. Diskspace

  14. On the PC's you have 1 Gigabyte of space on the so-called Z drive. The Z drive is now \\precious\home.

    The default home directory quota on the macs is 50GB.

    On the suns, the default quota for home directories is 1 Gigabyte. If your needs exceed this you may wish to speak with your advisor or supervisor about obtaining additional storage.

    There are also two areas for miscellaneous temporary storage: 200GB and workdisk. /gaia/scratch/200GB is intended for longer term temporary storage. Please be tidy and clean up after yourself. It only contains 226 Gigabytes, currently, so you if use them all, there won't be any left for anyone else. The contents of /gaia/scratch/200GB are never backed up, so in the event of hardware or software problems, the entire contents will quite likely be lost.

    The directory /gaia/workdisk contains a monday and a thursday directory. The monday directory is cleaned every monday. I will leave it as an exercise to the reader to determine when the thursday directory is cleaned. This is for temporary storage and files will be deleted as scheduled. The contents of /gaia/workdisk are never backed up, so in the event of hardware or software problems, the entire contents will quite likely be lost.

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  15. Other hardware

  16. Networked Scanner in house 1 outside rm 218.

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  17. Data Backups

  18. Backups are performed nightly. See Bob's packrat announcement for more details. This is for crash recovery only and may not include all disks. A 1TB usb external drive is about $100. Everyone is strongly encouraged to perform your own backs of important data.

    DO YOUR BACKUPS. If you don't, I guarantee that eventually, you WILL lose data.

    You can also use rsync to backup files from one disk to another using these instructions.

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  19. Off campus access

  20. We allow ssh access to the suns from off campus. We do not allow any other type of access. We only allow connections from known and specific computers and networks. This includes most local internet service providers. If you are leaving town and need ssh access inform the computer staff of the network you will be logging in from so that we may grant access. Please do this before you leave if at all possible.

    When you give your remote IP address to tech staff to gain access, please note that 192.168 addresses are not routable addresses. They are normally managed behind a firewall by an ISP and to the outside world, you appear to be logging in from a different, public internet address. In this case you can use tools like ipconfig to discover your address or arrange with computer staff a specific time and host where you will attempt to login so that we can monitor the logs and discover your ip that way.

    Of course all the other web based apps like umdrive, etc are externally available.

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  21. CERI Computing Policy

  22. Everything has rules. The CERI handbook, available on the CERI Internal Website has a section for the ones that apply to the computers.

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