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129 | .\" ======================================================================== | |
130 | .\" | |
131 | .IX Title "DBIPROXY 1" | |
132 | .TH DBIPROXY 1 "2002-10-01" "perl v5.8.0" "User Contributed Perl Documentation" | |
133 | .SH "NAME" | |
134 | dbiproxy \- A proxy server for the DBD::Proxy driver | |
135 | .SH "SYNOPSIS" | |
136 | .IX Header "SYNOPSIS" | |
137 | .Vb 1 | |
138 | \& dbiproxy <options> --port <port> | |
139 | .Ve | |
140 | .SH "DESCRIPTION" | |
141 | .IX Header "DESCRIPTION" | |
142 | This tool is just a front end for the DBI::ProxyServer package. All it | |
143 | does is picking options from the command line and calling | |
144 | \&\fIDBI::ProxyServer::main()\fR. See \fIDBI::ProxyServer\fR\|(3) for details. | |
145 | .PP | |
146 | Available options include: | |
147 | .IP "\fB\-\-chroot=dir\fR" 4 | |
148 | .IX Item "--chroot=dir" | |
149 | (\s-1UNIX\s0 only) After doing a \fIbind()\fR, change root directory to the given | |
150 | directory by doing a \fIchroot()\fR. This is usefull for security, but it | |
151 | restricts the environment a lot. For example, you need to load \s-1DBI\s0 | |
152 | drivers in the config file or you have to create hard links to Unix | |
153 | sockets, if your drivers are using them. For example, with MySQL, a | |
154 | config file might contain the following lines: | |
155 | .Sp | |
156 | .Vb 9 | |
157 | \& my $rootdir = '/var/dbiproxy'; | |
158 | \& my $unixsockdir = '/tmp'; | |
159 | \& my $unixsockfile = 'mysql.sock'; | |
160 | \& foreach $dir ($rootdir, "$rootdir$unixsockdir") { | |
161 | \& mkdir 0755, $dir; | |
162 | \& } | |
163 | \& link("$unixsockdir/$unixsockfile", | |
164 | \& "$rootdir$unixsockdir/$unixsockfile"); | |
165 | \& require DBD::mysql; | |
166 | .Ve | |
167 | .Sp | |
168 | .Vb 4 | |
169 | \& { | |
170 | \& 'chroot' => $rootdir, | |
171 | \& ... | |
172 | \& } | |
173 | .Ve | |
174 | .Sp | |
175 | If you don't know \fIchroot()\fR, think of an \s-1FTP\s0 server where you can see a | |
176 | certain directory tree only after logging in. See also the \-\-group and | |
177 | \&\-\-user options. | |
178 | .IP "\fB\-\-configfile=file\fR" 4 | |
179 | .IX Item "--configfile=file" | |
180 | Config files are assumed to return a single hash ref that overrides the | |
181 | arguments of the new method. However, command line arguments in turn take | |
182 | precedence over the config file. See the \*(L"\s-1CONFIGURATION\s0 \s-1FILE\s0\*(R" section | |
183 | below for details on the config file. | |
184 | .IP "\fB\-\-debug\fR" 4 | |
185 | .IX Item "--debug" | |
186 | Turn debugging mode on. Mainly this asserts that logging messages of | |
187 | level \*(L"debug\*(R" are created. | |
188 | .IP "\fB\-\-facility=mode\fR" 4 | |
189 | .IX Item "--facility=mode" | |
190 | (\s-1UNIX\s0 only) Facility to use for \*(L"Sys::Syslog (3)\*(R". The default is | |
191 | \&\fBdaemon\fR. | |
192 | .IP "\fB\-\-group=gid\fR" 4 | |
193 | .IX Item "--group=gid" | |
194 | After doing a \fIbind()\fR, change the real and effective \s-1GID\s0 to the given. | |
195 | This is usefull, if you want your server to bind to a privileged port | |
196 | (<1024), but don't want the server to execute as root. See also | |
197 | the \-\-user option. | |
198 | .Sp | |
199 | \&\s-1GID\s0's can be passed as group names or numeric values. | |
200 | .IP "\fB\-\-localaddr=ip\fR" 4 | |
201 | .IX Item "--localaddr=ip" | |
202 | By default a daemon is listening to any \s-1IP\s0 number that a machine | |
203 | has. This attribute allows to restrict the server to the given | |
204 | \&\s-1IP\s0 number. | |
205 | .IP "\fB\-\-localport=port\fR" 4 | |
206 | .IX Item "--localport=port" | |
207 | This attribute sets the port on which the daemon is listening. It | |
208 | must be given somehow, as there's no default. | |
209 | .IP "\fB\-\-logfile=file\fR" 4 | |
210 | .IX Item "--logfile=file" | |
211 | Be default logging messages will be written to the syslog (Unix) or | |
212 | to the event log (Windows \s-1NT\s0). On other operating systems you need to | |
213 | specify a log file. The special value \*(L"\s-1STDERR\s0\*(R" forces logging to | |
214 | stderr. See \fINet::Daemon::Log\fR\|(3) for details. | |
215 | .IP "\fB\-\-mode=modename\fR" 4 | |
216 | .IX Item "--mode=modename" | |
217 | The server can run in three different modes, depending on the environment. | |
218 | .Sp | |
219 | If you are running Perl 5.005 and did compile it for threads, then the | |
220 | server will create a new thread for each connection. The thread will | |
221 | execute the server's \fIRun()\fR method and then terminate. This mode is the | |
222 | default, you can force it with \*(L"\-\-mode=threads\*(R". | |
223 | .Sp | |
224 | If threads are not available, but you have a working \fIfork()\fR, then the | |
225 | server will behave similar by creating a new process for each connection. | |
226 | This mode will be used automatically in the absence of threads or if | |
227 | you use the \*(L"\-\-mode=fork\*(R" option. | |
228 | .Sp | |
229 | Finally there's a single-connection mode: If the server has accepted a | |
230 | connection, he will enter the \fIRun()\fR method. No other connections are | |
231 | accepted until the \fIRun()\fR method returns (if the client disconnects). | |
232 | This operation mode is usefull if you have neither threads nor \fIfork()\fR, | |
233 | for example on the Macintosh. For debugging purposes you can force this | |
234 | mode with \*(L"\-\-mode=single\*(R". | |
235 | .IP "\fB\-\-pidfile=file\fR" 4 | |
236 | .IX Item "--pidfile=file" | |
237 | (\s-1UNIX\s0 only) If this option is present, a \s-1PID\s0 file will be created at the | |
238 | given location. | |
239 | .IP "\fB\-\-user=uid\fR" 4 | |
240 | .IX Item "--user=uid" | |
241 | After doing a \fIbind()\fR, change the real and effective \s-1UID\s0 to the given. | |
242 | This is usefull, if you want your server to bind to a privileged port | |
243 | (<1024), but don't want the server to execute as root. See also | |
244 | the \-\-group and the \-\-chroot options. | |
245 | .Sp | |
246 | \&\s-1UID\s0's can be passed as group names or numeric values. | |
247 | .IP "\fB\-\-version\fR" 4 | |
248 | .IX Item "--version" | |
249 | Supresses startup of the server; instead the version string will | |
250 | be printed and the program exits immediately. | |
251 | .SH "AUTHOR" | |
252 | .IX Header "AUTHOR" | |
253 | .Vb 4 | |
254 | \& Copyright (c) 1997 Jochen Wiedmann | |
255 | \& Am Eisteich 9 | |
256 | \& 72555 Metzingen | |
257 | \& Germany | |
258 | .Ve | |
259 | .PP | |
260 | .Vb 2 | |
261 | \& Email: joe@ispsoft.de | |
262 | \& Phone: +49 7123 14881 | |
263 | .Ve | |
264 | .PP | |
265 | The DBI::ProxyServer module is free software; you can redistribute it | |
266 | and/or modify it under the same terms as Perl itself. In particular | |
267 | permission is granted to Tim Bunce for distributing this as a part of | |
268 | the \s-1DBI\s0. | |
269 | .SH "SEE ALSO" | |
270 | .IX Header "SEE ALSO" | |
271 | \&\fIDBI::ProxyServer\fR\|(3), \fIDBD::Proxy\fR\|(3), \s-1\fIDBI\s0\fR\|(3) |