Annotation of www/anoncvs.html, Revision 1.6
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1.2 deraadt 4: <title>OpenBSD AnonCVS</title>
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14:
15: <h1>OpenBSD</h1>
1.6 ! jkatz 16: <hr>
1.1 deraadt 17: <h3>CVS Access:</h3>
18: CVS is used to manage the OpenBSD source tree. This allows
19: developers to work on a local source tree and commit their changes when
20: ready. Also <strong>anyone</strong> can edit source files on their
21: local machines, and automatically track and merge in any changes made
22: in the OpenBSD CVS repository. Additionally they can easily see the
23: logs of, check out, or "diff" the source files in the OpenBSD source
24: tree.
25: </p>
26:
27: <p>
28: Most importantly, the <strong>anoncvs</strong> service does NOT
29: delete the changes you make in your local copy of the source tree --
30: read on for more details!
31: </p>
32:
33: <p>
34: The latest version of CVS is available at
35: <a href=ftp://ftp.cyclic.com/pub/cvs/>Cyclic</a>.
36: Versions earlier than 1.6 are not recommended, and may not work.
37: If you already have OpenBSD installed, CVS is included.
38: </p>
39:
40: <p>
41: There are two levels of source tree access:
42: </p>
43:
44: <dl>
45: <dt><strong>Read-write access for developers:</strong>
46: <dd>Developers who need to commit changes to the source tree must have
47: an account on the OpenBSD machines. Getting this access will be a
48: natural result of working on the sources with other OpenBSD developers.
49: If someone does some good work and shows they can work with the team,
50: they will get an account.
51: </dl>
52:
53: <dl>
54: <dt><strong>Read-only access for everyone:</strong>
55: <dd>Anyone can access the read-only CVS repositories. These copies
56: of the read-write CVS repository are mirrored often. To use one,
57: set your <strong>CVSROOT</strong> environment variable to one of
58: the following values:
59: <ul>
60: <p>
61: <li><strong>CVSROOT=anoncvs@anoncvs.usa.openbsd.org:/cvs</strong><br>
62: Host also known as <strong>anoncvs.openbsd.org</strong> and
63: <strong>eap.ccrc.wustl.edu</strong>.<br>
64: located at Washington University, St. Louis, mid-west USA.<br>
65: maintained by <a href=mailto:chuck@maria.wustl.edu>Chuck Cranor</a>.<br>
66: protocols: rsh, ssh, ssh port 2022.<br>
67: updated every 4 hours.<br>
68: <p>
69: <li><strong>CVSROOT=anoncvs@anoncvs2.usa.openbsd.org:/cvs</strong><br>
1.5 johns 70: Host also known as <strong>hydra.heuris.com</strong>.<br>
1.4 deraadt 71: located in St. Louis, Missouri, mid-western USA.<br>
1.1 deraadt 72: maintained by <a href=mailto:johns@heuris.com>John Stone</a>.<br>
73: protocols: rsh, ssh, ssh port 2022.<br>
74: updated every 12 hours.<br>
75: <p>
76: <li><strong>CVSROOT=anoncvs@anoncvs3.usa.openbsd.org:/cvs</strong><br>
77: Host also known as <strong>freestuff.cs.colorado.edu</strong>.<br>
78: located at the University of Colorado, Boulder, western USA.<br>
79: maintained by <a href=mailto:Todd.Miller@cs.colorado.edu>Todd Miller</a>.<br>
80: protocols: ssh, ssh port 2022.<br>
81: updated every 6 hours.<br>
82: <p>
83: <li><strong>CVSROOT=anoncvs@anoncvs.uk.openbsd.org:/cvs</strong><br>
84: Host also known as <strong>dumpty.wonderland.org</strong>.<br>
85: located in London, UK.<br>
86: maintained by <a href=mailto:peter@wonderland.org>Peter Galbavy</a>.<br>
87: protocols: rsh.<br>
88: updated every 12 hours.<br>
89: <p>
90: <li><strong>CVSROOT=anoncvs@anoncvs.tw.openbsd.org:/cvs</strong><br>
91: Host also known as <strong>hercules.secc.fju.edu.tw</strong>.<br>
92: located in Taipei, Taiwan.<br>
93: maintained by <a href=mailto:shawn@openbsd.org>Shawn Hsiao</a>.<br>
94: protocols: rsh, ssh, ssh port 2022.<br>
95: updated every 12 hours.<br>
96: <p>
97: <li><strong>CVSROOT=anoncvs@anoncvs.no.openbsd.org:/cvs</strong><br>
98: located in Norway.<br>
99: maintained by <a href=mailto:micheals@openbsd.org>Michael Shuldman</a>.<br>
100: protocols: rsh, ssh, ssh port 2022.<br>
101: updated every 4 hours.<br>
102: </ul>
103: <p>
104: You may want to use `traceroute' to find out which server is nearest you.
105: </dl>
106: </p>
107:
108: <p>
109: <strong>IMPORTANT NOTE:</strong>
110: There are a few issues relating to cryptographic software that everyone
111: should be aware of:
112: <ul>
113: <li>The OpenBSD sources are from Canada.
114: <a href=http://insight.mcmaster.ca/org/efc/pages/doc/crypto-export.html>It
115: is legal to export crypto software from Canada to the world.</a>
116: <p>
117: <li>However, if you are outside the USA or Canada, you should not
118: fetch the cryptographic sections of the OpenBSD sources from an
119: anoncvs server located in the USA. The files in question are...
120: <ul>
121: <li>src/kerberosIV/*
122: <li>src/lib/libc/crypt/crypt.c
123: <li>src/lib/libc/crypt/morecrypt.c
124: </ul>
125: Because of the USA ITAR munitions list,
126: crypto software may only be exported to Canada from the USA.
127: <p>
128: <li>The OpenBSD project is looking for more anoncvs servers -- read
129: on to find out how you can help.
130: </ul>
131: </p>
132:
133: <p>
134: A sample use of an anoncvs CVS server would be:
135: <pre>
136: % setenv CVSROOT anoncvs@anoncvs.usa.openbsd.org:/cvs
137: % cd /tmp
138: % cvs get src/sys/arch/sparc
139: [copies the files from the repository to your machine]
140: % cvs log src/sys/arch/sparc/sparc/locore.s
141: [shows the commit log for the chosen file ]
142: % cvs diff -bc -r1.1 -r1.5 src/sys/arch/sparc/sparc/locore.s
143: [shows the changes between revisions 1.1 and rev 1.5]
144: </pre>
145: </p>
146:
147: <p>
148: Here is how someone using anoncvs regularily would update his
149: source tree:
150: <pre>
151: # setenv CVSROOT anoncvs@anoncvs.usa.openbsd.org:/cvs
152: # cd /usr
153: # cvs -q get -PA src
154: </pre>
155: or similarily later on he might try
156: <pre>
157: # cd /usr/src
158: # cvs -q up -PAd
159: </pre>
160: Everytime you ran this it would syncronize your /usr/src tree. It would
161: not destroy any of your local changes, rather it would attempt to merge
162: changes in. If you use obj directories (not obj symbolic links) you may
163: wish to append "-I obj" to the cvs command line, this will keep cvs from
164: spitting out a warning about all the obj directories it is going to
165: encounter which are not in the repository.
166: </p>
167:
168: <p>
169: The CVS man page (included with the CVS sources) has much more
170: information about how CVS can be used.
171: </p>
172:
173: <p>
174: The anoncvs service gives fledgling developers a chance to learn CVS
175: operation and get thoroughly involved in the development process
176: before getting "commit" access -- as a result of showing useful
177: skills and high quality results they will naturally later be given
178: developer access. As well, people providing patches can create
179: their "diff"s relative to the CVS tree, which will ease integration.
180: </p>
181:
182: <p>
183: The CVS client uses rsh to talk to the CVS server. If some local
184: security measure like a firewall (or imperfect protocol emulators
185: like slirp) prevents you from using rsh, you may be able to use
186: <a href=http://www.cs.hut.fi/ssh>ssh</a> instead. In this case,
187: one sets the environment variable <strong>CVS_RSH</strong> to point
188: to ssh (typically <strong>/usr/local/bin/ssh</strong>). To reduce the
189: performance hit the anoncvs server would take it is recommended (and
190: requested) that you disable encryption. If your local site prevents
191: you from connecting out to port 22 (which ssh defaults to using) use
192: port 2022.
193: </p>
194:
195: <p>
196: Do not be tempted to turn on compression since CVS already compresses.
197: Use something like the following in your <strong>$HOME/.ssh/config</strong>
198: file.
199: </p>
200: <pre>
201: Host anoncvs.usa.openbsd.org
202: Cipher none
203: Port 2022
204: </pre>
205:
206: <p>
207: CVS is a little noisy starting up; to quiet it a bit you may want to
208: do this:
209: <pre>
210: setenv CVS_CLIENT_PORT -1
211: </pre>
212: </p>
213:
214: <p>
215: If you wish to be a new anoncvs mirror site, please contact the anoncvs
216: <a href=mailto:deraadt@theos.com>maintainer</a>.
217: Anoncvs mirrors require about 300MB of disk, and use up to 4MB of swap
218: per anoncvs user (assuming the user does a large operation; while smaller
219: operations use fewer resources, anoncvs still makes much more of an
220: impact than ftp or sup). Such anoncvs machines should have excellent
221: network connectivity for the area they are expected to serve. A
222: <a href=anoncvs.shar>document</a>
223: which describes the setup of anoncvs servers is available.
224: </p>
225:
226: </dl>
227:
228: <hr>
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