2 .\" Copyright 2004-2005 Colin Percival
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28 .Dd September 15, 2008
33 .Nd fetch and extract compressed snapshots of the ports tree
48 tool is used to fetch and update compressed snapshots
51 ports tree, and extract and update an
52 uncompressed ports tree.
54 The following options are supported:
55 .Bl -tag -width "-f conffile"
57 Store working files (e.g.\& downloaded updates) in
60 .Pa /var/db/portsnap ,
61 or as given in the configuration file.)
63 Read the configuration from
66 .Pa /etc/portsnap.conf )
70 command, update INDEX files, but not the rest of the ports tree.
72 Expect a public key with given SHA256 hash.
73 (default: read value from configuration file.)
75 Merge the specified local describes file into the INDEX files being
79 should be generated by running
81 in each of the local port directories.
83 When extracting or updating an uncompressed snapshot,
84 operate on the directory
88 or as given in the configuration file.)
90 Fetch files from the specified server or server pool.
91 (default: portsnap.FreeBSD.org , or as given in the
96 command only, operate only on parts of the ports tree starting with
102 would extract sysutils/portsman, sysutils/portsnap,
103 sysutils/portupgrade, etc.)
108 can be any one of the following:
110 .Bl -tag -width "-f conffile"
112 Fetch a compressed snapshot of the ports tree, or update
113 the existing snapshot.
114 This command should only be used interactively; for
115 non-interactive use, you should use the
119 Sleep a random amount of time between 1 and 3600 seconds,
120 then operate as if the
122 command was specified.
123 As the name suggests, this command is designed for running
126 the random delay serves to minimize the probability that
127 a large number of machines will simultaneously attempt to
130 Extract a ports tree, replacing existing files and directories.
131 NOTE: This will remove anything occupying the location where
132 files or directories are being extracted; in particular, any
133 changes made locally to the ports tree (for example, adding new
134 patches) will be silently obliterated.
136 Only run this command to initialize your portsnap-maintained
137 ports tree for the first time, if you wish to start over with
138 a clean, completely unmodified tree, or if you wish to extract
139 a specific part of the tree (using the
143 Update a ports tree extracted using the
146 You must run this command to apply changes to your ports tree
147 after downloading updates via the
152 Again, note that in the parts of the ports tree which are being
153 updated, any local changes or additions will be removed.
158 If your clock is set to local time, adding the line
160 .Dl 0 3 * * * root /usr/sbin/portsnap cron
162 to /etc/crontab is a good way to make sure you always have
163 an up-to-date snapshot of the ports tree available which
164 can quickly be extracted into
166 If your clock is set to UTC, please pick a random time other
167 than 3AM, to avoid overly imposing an uneven load on the
168 server(s) hosting the snapshots.
175 is a bad idea -- if you are ever installing or updating a
176 port at the time the cron job runs, you will probably end up
179 updates or removes files which are being used by the port
185 is probably safe, and can be used together with
187 to identify installed software which is out of date.
191 to keep a large number of machines up to date, you may wish
192 to set up a caching HTTP proxy.
197 to download updates, setting the
199 environment variable will direct it to fetch updates from
201 This is much more efficient than
203 the files on the portsnap server, since the vast majority
204 of files are not needed by any particular client.
207 As an unavoidable part of its operation, a machine running
209 will make its public IP address and the list of files it fetches
210 available to the server from which it fetches updates.
211 Using these it may be possible to recognize a machine over an extended
212 period of time, determine when it is updated, and identify which
213 portions of the FreeBSD ports tree, if any, are being ignored using
214 "REFUSE" directives in
216 In addition, the FreeBSD release level is transmitted to the server.
218 Statistical data generated from information collected in this manner
219 may be published, but only in aggregate and after anonymizing the
222 .Bl -tag -width "/etc/portsnap.conf"
223 .It /etc/portsnap.conf
224 Default location of the portsnap configuration file.
226 Default location where compressed snapshots are stored.
228 Default location where the ports tree is extracted.
236 .An Colin Percival Aq cperciva@FreeBSD.org