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3788
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1 .\"
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2 .\" Copyright (c) 2010 Sergey A. Osokin
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3 .\" All rights reserved.
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4 .\"
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5 .\" Redistribution and use in source and binary forms, with or without
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6 .\" modification, are permitted provided that the following conditions
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7 .\" are met:
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8 .\" 1. Redistributions of source code must retain the above copyright
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9 .\" notice, this list of conditions and the following disclaimer.
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10 .\" 2. Redistributions in binary form must reproduce the above copyright
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11 .\" notice, this list of conditions and the following disclaimer in the
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12 .\" documentation and/or other materials provided with the distribution.
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13 .\"
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14 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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15 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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16 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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17 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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18 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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19 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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20 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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21 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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22 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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23 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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24 .\" SUCH DAMAGE.
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25 .\"
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26 .\"
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27 .Dd November 14, 2010
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28 .Dt NGINX 8
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29 .Os
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30 .Sh NAME
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31 .Nm nginx
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32 .Nd "HTTP and reverse proxy server, mail proxy server"
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33 .Sh SYNOPSIS
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34 .Nm
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35 .Op Fl hqtvV?
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36 .Op Fl c Ar file
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37 .Op Fl g Ar directives
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38 .Op Fl p Ar prefix
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39 .Op Fl s Ar signal
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40 .Sh DESCRIPTION
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41 The
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42 .Nm
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43 (spelled
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44 .Dq engine x )
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45 is an HTTP and reverse proxy server, as well as a mail proxy server.
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46 The
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47 .Nm
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48 is known for its high performance, stability, rich feature set, simple
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49 configuration, and low resource consumption.
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50 .Pp
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51 The options are as follows:
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52 .Bl -tag -width ".Fl d Ar directives"
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53 .It Fl ?\& | h
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54 Print help.
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55 .It Fl c Ar file
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56 Use an alternative configuration
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57 .Ar file .
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58 .It Fl g Ar directives
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59 Set global configuration directives.
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60 See
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61 .Sx EXAMPLES
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62 for details.
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63 .It Fl p Ar prefix
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64 Set prefix path.
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65 Default value is
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66 .Pa %%PREFIX%% .
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67 .It Fl q
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68 Suppress non-error messages during configuration testing.
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69 .It Fl s Ar signal
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70 Send signal to the master process.
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71 The argument
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72 .Ar signal
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73 can be one of:
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74 .Cm stop , quit , reopen , reload .
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75 The following table shows the corresponding system signals.
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76 .Pp
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77 .Bl -tag -width ".It Cm reopen" -compact
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78 .It Cm stop
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79 .Dv SIGTERM
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80 .It Cm quit
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81 .Dv SIGQUIT
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82 .It Cm reopen
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83 .Dv SIGUSR1
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84 .It Cm reload
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85 .Dv SIGHUP
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86 .El
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87 .It Fl t
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88 Don't run, just test the configuration file.
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89 The
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90 .Nm
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91 checks configuration for correct syntax and then tries to open files
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92 referred in configuration.
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93 .It Fl v
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94 Print
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95 .Nm
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96 version.
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97 .It Fl V
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98 Print
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99 .Nm
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100 version, compiler version and
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101 .Pa configure
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102 script parameters.
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103 .El
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104 .Sh SIGNALS
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105 The master process of
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106 .Nm
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107 can handle the following signals.
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108 .Pp
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109 .Bl -tag -width ".It Dv SIGINT , SIGTERM" -compact
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110 .It Dv SIGINT , SIGTERM
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111 Shut down quickly.
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112 .It Dv SIGHUP
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113 Reload configuration, start the new worker process with a new
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114 configuration, gracefully shut down old worker processes.
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115 .It Dv SIGQUIT
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116 Shut down gracefully.
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117 .It Dv SIGUSR1
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118 Reopen log files.
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119 .It Dv SIGUSR2
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120 Upgrade
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121 .Nm
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122 executable on the fly.
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123 .It Dv SIGWINCH
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124 Shut down gracefully worker processes.
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125 .El
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126 .Pp
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127 While there's no need to explicitly control worker processes normally,
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128 they support some signals, too:
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129 .Pp
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130 .Bl -tag -width ".It Dv SIGINT , SIGTERM" -compact
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131 .It Dv SIGTERM
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132 Shut down quickly.
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133 .It Dv SIGQUIT
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134 Shut down gracefully.
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135 .It Dv SIGUSR1
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136 Reopen log files.
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137 .El
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138 .Sh DEBUGGING LOG
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139 To enable a debugging log, reconfigure
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140 .Nm
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141 to build with debugging:
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142 .Pp
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143 .Dl "./configure --with-debug ..."
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144 .Pp
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145 and then set the
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146 .Cm debug
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147 level of the
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148 .Va error_log :
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149 .Pp
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150 .Dl "error_log /path/to/log debug;"
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151 .Pp
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152 It is also possible to enable the debugging for some IP address:
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153 .Bd -literal -offset indent
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154 events {
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155 debug_connection 127.0.0.1;
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156 }
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157 .Ed
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158 .Sh FILES
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159 .Bl -tag -width indent -compact
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160 .It Pa %%PID_PATH%%
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161 Contains the process ID of the
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162 .Nm
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163 listening for connections.
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164 The content of this file is not sensitive; it can be world-readable.
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165 .It Pa %%CONF_PATH%%
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166 Main configuration file.
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167 .It Pa %%ERROR_LOG_PATH%%
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168 Error log file.
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169 .El
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170 .Sh EXIT STATUS
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171 Exit status is 0 on success, or 1 if the command fails.
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172 .Sh EXAMPLES
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173 .Bd -literal
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174 nginx -t -c ~/mynginx.conf -g "pid /var/run/mynginx.pid; worker_processes 2;"
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175 .Ed
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176 Test configuration file
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177 .Pa ~/mynginx.conf
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178 with global directives for PID and quantity of worker processes.
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179 .Sh SEE ALSO
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180 .Xr nginx.conf 5
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181 .Sh HISTORY
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182 Development of
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183 .Nm
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184 started in 2002, with the first public release on October 4, 2004.
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185 .Sh AUTHORS
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186 .An Igor Sysoev Aq igor@sysoev.ru
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187 .Pp
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188 Documentation available on
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189 .Pa http://nginx.org/
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190 and
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191 .Pa http://sysoev.ru/nginx/ .
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192 .Pp
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193 This manual page was written by
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194 .An Sergey A. Osokin Aq osa@FreeBSD.org.ru
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195 as a result of compilation of many
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196 .Nm
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197 documents all over the world.
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198 .Sh BUGS
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199 Report to mailing list
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200 .Aq Li nginx@nginx.org
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201 if you found one.
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