|
Size: 10765
Comment: remove portion that was put into the Manual
|
Size: 9256
Comment: Define migration status more specifically, and list some known issues that must be addressed
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 10: | Line 10: |
| '''14 September 2007''': Migration has begun! Use this page to learn how to create a new account and migrate your data. A user creation script will be run periodically each day. | '''11 November 2007''': We now have a MemberManual to fully explain all the things you need to know as an HCoop member about using our services. The forced migration period will begin in a week or two (once all of the following issues have been addressed), and will last one month. Issues that need to be addressed in the new setup: * All things Mailman. * Authentication to Exim for the purposes of using it as a smarthost to send email from another machine. * Known-working MoinMoin setup for user wiki instances, possibly with custom DomTool directive. |
| Line 14: | Line 20: |
| We are now offering accounts on the new infrastructure (see NewServersSetup) on a "beta test" basis to all users who have accounts on fyodor. These accounts come with no uptime or service guarantee; during the next few weeks we may need to temporarily disable them from time to time. Please keep all of your original data on Fyodor in the event something unexpected happens. These accounts will allow you full access to your space in AFS (currently 400MB per user) and the ability to log in to mire.hcoop.net via ssh. Email is also supported. Currently NO OTHER SERVICES are officially supported on the new infrastructure (for example, serving HTTP), although they do work. |
Haeing an account on our new machines will allow you to have full access to your space in AFS (currently 400MB per user) and the ability to log in to {{{mire.hcoop.net}}} via ssh. |
| Line 35: | Line 39: |
| Now you may attempt to login using your favorite SSH client or the new AJAX SSH service at http://ssh.hcoop.net/. It requires a modern browser that cooperates with AJAX. | Now you may attempt to login to {{{mire.hcoop.net}}} using your favorite SSH client or the new AJAX SSH service at [http://ssh.hcoop.net/]. The latter requires a modern browser that cooperates with AJAX. |
| Line 39: | Line 43: |
| You can no longer use SSH public key authentication. ["Kerberos"] authentication ("`ssh -K`") ''is'' supported, for passwordless log-in. Some day, someone might implement the Kerberos support needed to make SSH public key auth work again. See RealSecurity for more information on all of this. | You can no longer use SSH public key authentication. ["Kerberos"] authentication ("`ssh -K`") ''is'' supported, for passwordless log-in. Some day, someone might implement the Kerberos support needed to make SSH public key auth work again. See MemberManual/DistributedSecurity for more information on all of this. |
| Line 45: | Line 49: |
| If you fail to log in correctly a few times the DenyHosts scripts will lock you out. Currently any blocked IP's are purged after a week, so if you don't want to wait you'll need to submit a ticket, or if you can't access the portal to do this you'll need to send an email to admins@hcoop.net. | If you fail to log in correctly quite a few times, the Deny``Hosts scripts might lock you out. Currently any blocked IP's are purged after a week, so if you don't want to wait you'll need to submit a ticket, or if you can't access the portal to do this you'll need to send an email to [[MailTo(admins AT hcoop DOT net)]]. |
| Line 100: | Line 104: |
| Be sure to read through the chapters of the MemberManual that interest you. The following are some very quick overviews of things that have changed. Don't expect it to be exhaustive. | Be sure to read through the chapters of the MemberManual that interest you. The following are some very quick overviews of things that have changed. |
| Line 104: | Line 108: |
| We are purposely not sending any DNS data from Old to New, which means that you need to change domains at your registrar if you want New to be authoritative for them. The proper nameservers are ns1.hcoop.net and ns3.hcoop.net, in that order. Keeping ns.hcoop.net and ns2.hcoop.net '''will not work'''. | We are purposely not sending any DNS data from Old to New, which means that you need to change domains at your registrar if you want New to be authoritative for them. The proper nameservers are `ns1.hcoop.net` and `ns3.hcoop.net`, in that order. Keeping `ns.hcoop.net` and `ns2.hcoop.net` '''will not work'''. |
| Line 114: | Line 118: |
| == OpenAFS and permissions == First of all, UNIX permissions carry no weight with AFS -- therefore they are useless to you. Instead, use Access Control Lists (ACL), which are a far more powerful way of restricting access to parts of a file tree. Read MemberManual/GettingStarted for further information on AFS concepts. See the [:../TransferringFiles/OpenAFS:OpenAFS] subpage to find installation directions for various operating systems. == rsync == If you're using rsync to transfer data to the new servers, the "-a" option by itself won't work properly because rsync attempts to chgrp the transferred files. Use "-a --no-g" instead of "-a". == WebDAV == WebDAV is accessible at https://dav.hcoop.net/. WebDAV is useful when working on a website using systems that cannot mount an AFS share. For details on how to setup WebDAV, take a look at http://research.cs.berkeley.edu/doc/dav/ Note that you can only use WebDAV on directories that have {{{system:anyuser rl}}} as part of its ACL. You'll be able to write even if {{{system:anyuser}}} does not. |
|
| Line 118: | Line 136: |
| = rsync = If you're using rsync to transfer data to the new servers, the "-a" option by itself won't work properly because rsync attempts to chgrp the transferred files. Use "-a --no-g" instead of "-a". == Securing directories == First of all, UNIX permissions carry no weight with AFS -- therefore they are useless to you. Instead, use Access Control Lists (ACL), which are a far more powerful way of restricting access to parts of a file tree. That said, when a new directory is created inside $HOME, its ACL defaults to allow listing by any authenticated party on HCoop. Note that ACLs cannot be set on individual files. They inherit the ACL from its parent directory. If you wish to make a directory within your $HOME completely private so that only you can list, read, and write, do this: {{{ mkdir ~/private fs setacl -clear ~/private <USERNAME> all }}} Note that {{{-clear}}} removes any previously set ACLs and {{{<USERNAME> all}}} sets full access to the directory's contents to the specified user. Therefore, if you have a directory in $HOME that you wish to make only accessible to you (such as ~/.ssh or ~/documents), use: {{{fs setacl -clear ~/<DIRECTORY> <USERNAME> all}}}. If you use domtool to set up your domain, there is a way to allow {{{system:anyuser}}} only to list the contents of public_html without breaking your website(s). By default ACLs R and L are given. Change that in this way: {{{fs setacl ~/public_html system:anyuser l}}}. Now, add all permissions for the ''USER.daemon'' principle: {{{ fs setacl ~/public_html <USERNAME>.daemon all}}}. Be aware that this only works if you use your own domain -- if you use {{{http://deleuze.hcoop.net/~USERNAME}}} to serve your files, then you '''must''' be sure that {{{system:anyuser}}} can read {{{~/public_html}}} and its subdirectories. If you wish to view the ACLs on a specific directory, such as any you have just applied an ACL, use: {{{fs listacl <DIRECTORY>}}} = WebDAV = WebDAV is accessible at https://dav.hcoop.net/. WebDAV is useful when working on a website using systems that cannot mount an AFS share. For details on how to setup WebDAV, take a look at http://research.cs.berkeley.edu/doc/dav/ Note that you can only use WebDAV on directories that have {{{system:anyuser rl}}} as part of its ACL. You'll be able to write even if {{{system:anyuser}}} does not. See Securing Directories on this page for additional details on directory ACLs. = Web sites = |
== Web sites == |
| Line 149: | Line 139: |
| Due to consequences of AFS authentication, we don't plan to allow dynamic content (CGI, PHP, etc.) via hcoop.net/~you/... on New. If you don't have a domain hosted at HCoop, but want to serve dynamic content, then you can request an hcoop.net subdomain (example: {{{USER.hcoop.net}}}, where USER is your username) via [http://bugzilla.hcoop.net/]. = OpenAFS = See the [:../TransferringFiles/OpenAFS:OpenAFS] subpage to find installation directions for various operating systems. |
Due to consequences of AFS authentication, we don't plan to allow dynamic content (CGI, PHP, etc.) via hcoop.net/~you/... on New. If you don't have a domain hosted at HCoop, but want to serve dynamic content, then you can request an hcoop.net subdomain (example: {{{USER.hcoop.net}}}, where USER is your username) via [http://bugzilla.hcoop.net/]. See the chapter on [:MemberManual/ServingWebsites:Serving Websites] for more details. |
This page describes the steps that members using the old machines need to take in order to migrate to the new machines.
For the purposes of this page, we'll use the name New to refer to the servers hosted at Peer 1 (which are deleuze, mire, and eventually abulafia and krunk) and Old to refer to any servers that we've used previously.
Status of Migration
11 November 2007: We now have a MemberManual to fully explain all the things you need to know as an HCoop member about using our services. The forced migration period will begin in a week or two (once all of the following issues have been addressed), and will last one month.
Issues that need to be addressed in the new setup:
- All things Mailman.
- Authentication to Exim for the purposes of using it as a smarthost to send email from another machine.
Known-working MoinMoin setup for user wiki instances, possibly with custom DomTool directive.
Summary of what exactly is going on here
Haeing an account on our new machines will allow you to have full access to your space in AFS (currently 400MB per user) and the ability to log in to mire.hcoop.net via ssh.
Requesting an account on the new infrastructure will not affect your fyodor account. You will have access to both accounts until after all migration is complete.
Getting started
Step 1: Get a New account
ssh to hcoop.net as usual.
Run this command line: migrationpw
- Follow the on-screen directions.
- Wait for an e-mail from the user creation script. (This stage requires that a human run the script periodically to watch for failures, but one of us should run it several times a day.)
The password you set will go into our new Kerberos database, allowing log-in to mire and any other of our servers that we choose to enable for non-admin shell access. You will also use this password for authentication to other services, like e-mail and members-only HCoop web sites.
An e-mail will be sent to your HCoop account to let you know that your account has been created. Be sure to memorize your password, as it won't be saved anywhere unencrypted once the account creation script runs!
Step 2: Try logging in
Now you may attempt to login to mire.hcoop.net using your favorite SSH client or the new AJAX SSH service at [http://ssh.hcoop.net/]. The latter requires a modern browser that cooperates with AJAX.
SSH Public Key is Obsoleted
You can no longer use SSH public key authentication. ["Kerberos"] authentication ("ssh -K") is supported, for passwordless log-in. Some day, someone might implement the Kerberos support needed to make SSH public key auth work again. See MemberManual/DistributedSecurity for more information on all of this.
That being said, if you've always been typing a password to log in via SSH and don't care to do otherwise, then you don't need to bother reading this section!
DenyHosts
If you fail to log in correctly quite a few times, the DenyHosts scripts might lock you out. Currently any blocked IP's are purged after a week, so if you don't want to wait you'll need to submit a ticket, or if you can't access the portal to do this you'll need to send an email to MailTo(admins AT hcoop DOT net).
Step 3: Visit the new portal
[https://members2.hcoop.net/ The new portal] uses the same password you use to log in to mire. That is, if you haven't created a New account yet, then you can't access the new portal.
You should use the new portal for all administrative requests, except for the specialized request types (e.g., domains, firewall rules, etc.) when they relate to fyodor.
Step 4: Have your mail dual-delivered
We recommend that you tell fyodor to dual-deliver all of your mail so that one copy goes to deleuze (our new main server) and one copy goes to fyodor. That way you can start reading your email via deleuze, but if anything goes wrong you can just switch back to fyodor.
To do this, put the following lines in your ~/.forward file on fyodor. Note that the comment on the first line is mandatory -- it tells exim that this forward file uses special exim features. If your username was fred, you would put this in your ~/.forward:
# Exim filter deliver fred deliver fred@deleuze.hcoop.net
and you mail will be dual-delivered.
Step 5: Copy your existing email
You can also copy the contents of your mailboxes from fyodor to mire (actually to our shared AFS filesystem by way of mire). To do this, log in to fyodor and type the following.
rsync -are ssh --no-g --progress --verbose ~/Maildir/ mire.hcoop.net:Maildir/
Migration strategy
Making a subdomain on fyodor and pointing it at mire
It is possible to test out your setup on the new servers by making a new subdomin on the old machine that points to the new machine. This way you can hone your new setup until it's as good as the old, while still having access to the old.
First, make a directory in your /etc/domains/TLD/DOMAIN folder on the old machine. TLD is the Top-Level Domain of your domain. For example, it might be com, net, us, in etc. DOMAIN is your domain, and SUB is the new subdomain that you would like to use. SUB should not include any of the text in DOMAIN, and should have no periods.
mkdir /etc/domains/TLD/DOMAIN/SUB
In that directory, make a file called .dns with the following contents.
Primary ns ns Default 69.90.123.68
Then, run the domtool command to finalize your changes on Fyodor.
Now request control of the DOMAIN using the new portal (http://members2.hcoop.net). When you receive notification of control, you can then log into mire.hcoop.net and configure DomTool so that Apache knows it can serve your SUBdomain. Please take a look at [:MemberManual/UsingDomtool: using DomTool], the [:DomTool/UserGuide: DomTool user guide], and [:DomTool/Examples: DomTool examples] to learn how to do this. You'll probably want to take a look at the vhost directive.
Quickies
Be sure to read through the chapters of the MemberManual that interest you. The following are some very quick overviews of things that have changed.
DNS
We are purposely not sending any DNS data from Old to New, which means that you need to change domains at your registrar if you want New to be authoritative for them. The proper nameservers are ns1.hcoop.net and ns3.hcoop.net, in that order. Keeping ns.hcoop.net and ns2.hcoop.net will not work.
Domains
See the DomTool page for instructions on managing your domains with the new setup. The configuration files are in a vastly different format, but they have a better-defined syntax that should be relatively easy to understand.
Home
Your home directory is now managed by AFS. You will enter it by default when logging in to mire.hcoop.net via ssh. Type pwd to see what the path is. It will look like /afs/hcoop.net/user/u/us/username. Some directories have been created for you already, so that they have the correct permissions for things like serving web pages and delivering mail.
OpenAFS and permissions
First of all, UNIX permissions carry no weight with AFS -- therefore they are useless to you. Instead, use Access Control Lists (ACL), which are a far more powerful way of restricting access to parts of a file tree. Read MemberManual/GettingStarted for further information on AFS concepts.
See the [:../TransferringFiles/OpenAFS:OpenAFS] subpage to find installation directions for various operating systems.
rsync
If you're using rsync to transfer data to the new servers, the "-a" option by itself won't work properly because rsync attempts to chgrp the transferred files. Use "-a --no-g" instead of "-a".
WebDAV
WebDAV is accessible at https://dav.hcoop.net/. WebDAV is useful when working on a website using systems that cannot mount an AFS share. For details on how to setup WebDAV, take a look at http://research.cs.berkeley.edu/doc/dav/
Note that you can only use WebDAV on directories that have system:anyuser rl as part of its ACL. You'll be able to write even if system:anyuser does not.
webmail
A Squirrelmail instance for reading your email on the new servers is available at [https://mail2.hcoop.net/].
Web sites
Your ~/public_html directory is available via HTTP through http://deleuze.hcoop.net/~USER/. Eventually this will change to http://hcoop.net/~USER/.
Due to consequences of AFS authentication, we don't plan to allow dynamic content (CGI, PHP, etc.) via hcoop.net/~you/... on New. If you don't have a domain hosted at HCoop, but want to serve dynamic content, then you can request an hcoop.net subdomain (example: USER.hcoop.net, where USER is your username) via [http://bugzilla.hcoop.net/]. See the chapter on [:MemberManual/ServingWebsites:Serving Websites] for more details.