Centos6.4 Nginx环境下安装配置nagios
1.环境：centos 6.4 X64
nginx 1.4.8
php 5.3.17
php和nginx提前安装这里不再详细介绍，如果比较懒可以下载lnmp一键安装包来安装。
所需软件安装包：
nagios 4.0.2 金山快盘附件：nagios-4.0.2.tar.gz（1.62MB）
nagios-plugins1.5 金山快盘附件：nagios-plugins-1.5.tar.gz（2.32MB）
FCGI-0.74.tar.gz 金山快盘附件：FCGI-0.74.tar.gz（95.31KB）
FCGI-ProcManager-0.24.tar.gz 金山快盘附件：FCGI-ProcManager-0.24.tar.gz（21.06KB）
IO-All-0.50.tar.gz 金山快盘附件：IO-All-0.50.tar.gz（82.08KB）
所有软件包都已上传到附件可下载。
2.建立用户：
# useradd nagios -s /sbin/nologin
3.安装nagios
# tar zxvf nagios-4.0.2.tar.gz
# cd nagios-4.0.2
# ./configure --prefix=/usr/local/nagios
make all
make install
make install-init
make install-config
make install-commandmode
注：
（1）make install 安装主要的程序、CGI及HTML文件
（2）make install-commandmode 给外部命令访问nagios配置文件权限
（3）make install-config 把配置文件的例子复制到nagios的安装目录
4.安装nagios插件：
# tar zxvf nagios-plugins-1.5.tar.gz
# cd nagios-plugins-1.5
# ./configure --prefix=/usr/local/nagios
# make && make install
5.配置nagios开机启动
# chkconfig nagios on
# chkconfig --list nagios
nagios 0:off 1:off 2:on 3:on 4:on 5:on 6:off
6.安装Perl fcgi模块，让Nginx支持CGI
tar -zxf FCGI-0.74.tar.gz
cd FCGI-0.74
perl Makefile.PL
make && make install
tar -zxf FCGI-ProcManager-0.24.tar.gz
cd FCGI-ProcManager-0.24
perl Makefile.PL
make && make install
tar zxf IO-All-0.50.tar.gz
cd IO-All-0.50
perl Makefile.PL
make && make install
7.建立nginx-fcgi脚本：
vim /usr/local/nginx/sbin/nginx-fcgi
#!/usr/bin/perl
#
# author Daniel Dominik Rudnicki
# thanks to:Piotr Romanczuk
# email daniel@sardzent.org
# version 0.4.3
# webpage http://www.nginx.eu/
#
# BASED @ http://wiki.codemongers.com/NginxSimpleCGI
#
#
# use strict;
use FCGI;
use Getopt::Long;
use IO::All;
use Socket;
sub init {
GetOptions( "h" => \$help,
"verbose!"=>\$verbose,
"pid=s" => \$filepid,
"l=s" => \$logfile,
"S:s" => \$unixsocket,
"P:i" => \$unixport) or usage();
usage() if $help;
print " Starting Nginx-fcgi\n" if $verbose;
print " Running with $> UID" if $verbose;
print " Perl $]" if $verbose;
# if ( $> == "0" ) {
# print "\n\tERROR\tRunning as a root!\n";
# print "\tSuggested not to do so !!!\n\n";
# exit 1;
# }
if ( ! $logfile ) {
print "\n\tERROR\t log file must declared\n"
. "\tuse $0 with option -l filename\n\n";
exit 1;
}
print " Using log file $logfile\n" if $verbose;
"\n\n" >> io($logfile);
addlog($logfile, "Starting Nginx-cfgi");
addlog($logfile, "Running with $> UID");
addlog($logfile, "Perl $]");
addlog($logfile, "Testing socket options");
if ( ($unixsocket && $unixport) || (!($unixsocket) && !($unixport)) ) {
print "\n\tERROR\tOnly one option can be used!\n";
print "\tSuggested (beacuse of speed) is usage UNIX socket -S \n\n";
exit 1;
}
if ($unixsocket) {
print " Daemon listening at UNIX socket $unixsocket\n" if $versbose;
addlog($logfile, "Deamon listening at UNIX socket $unixsocket");
} else {
print " Daemon listening at TCP/IP socket *:$unixport\n" if $verbose;
#
addlog($logfile, "Daemon listening at TCP/IP socket *:$unixport");
}
if ( -e $filepid ) {
print "\n\tERROR\t PID file $filepid already exists\n\n";
addlog($logfile, "Can not use PID file $filepid, already exists.");
exit 1;
}
if ( $unixsocket ) {
print " Creating UNIX socket\n" if $verbose;
$socket = FCGI::OpenSocket( $unixsocket, 10 );
if ( !$socket) {
print " Couldn't create socket\n";
addlog($logfile, "Couldn't create socket");
exit 1;
}
print " Using UNIX socket $unixsocket\n" if $verbose;
} else {
print " Creating TCP/IP socket\n" if $verbose;
$portnumber = ":".$unixport;
$socket = FCGI::OpenSocket( $unixport, 10 );
if ( !$socket ) {
print " Couldn't create socket\n";
addlog($logfile, "Couldn't create socket");
exit 1;
}
print " Using port $unixport\n" if $verbose;
}
addlog($logfile, "Socket created");
if ( ! $filepid ) {
print "\n\tERROR\t PID file must declared\n"
. "\tuse $0 with option -pid filename\n\n";
exit 1;
}
print " Using PID file $filepid\n" if $verbose;
addlog($logfile, "Using PID file $filepid");
my $pidnumber = $$;
$pidnumber > io($filepid);
print " PID number $$\n" if $verbose;
addlog($logfile, "PID number $pidnumber");
}
sub addzero {
my ($date) = shift;
if ($date < 10) {
return "0$date";
}
return $date;
}
sub logformat {
my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$iddst) = localtime(time);
my $datestring;
$year += 1900;
$mon++;
$mon= addzero($mon);
$mday = addzero($mday);
$min= addzero($min);
$datestring = "$year-$mon-$mday $hour:$min";
return($datestring);
}
sub addlog {
my ($log_file, $log_message) = @_;
my $curr_time = logformat();
my $write_message = "[$curr_time] $log_message";
$write_message >> io($log_file);
"\n" >> io($log_file);
}
sub printerror {
my $message = @_;
print "\n Nginx FastCGI\tERROR\n"
. "\t $message\n\n";
exit 1;
}
sub usage {
print "\n Nginx FastCGI \n"
. "\n\tusage: $0 [-h] -S string -P int\n"
. "\n\t-h\t\t: this (help) message"
. "\n\t-S path\t\t: path for UNIX socket"
. "\n\t-P port\t\t: port number"
. "\n\t-p file\t\t: path for pid file"
. "\n\t-l file\t\t: path for logfile"
. "\n\n\texample: $0 -S /var/run/nginx-perl_cgi.sock -l /var/log/nginx/nginx-cfgi.log -pid /var/run/nginx-fcgi.pid\n\n";
exit 1;
}
init;
#
END() { } BEGIN() { }
*CORE::GLOBAL::exit = sub { die "fakeexit\nrc=".shift()."\n"; }; eval q{exit};
if ($@) {
exit unless $@ =~ /^fakeexit/;
} ;
# fork part
my $pid = fork();
if( $pid == 0 ) {
&main;
exit 0;
}
print " Forking worker process with PID $pid\n" if $verbose;
addlog($logfile, "Forking worker process with PID $pid");
print " Update PID file $filepid\n" if $verbose;
addlog($logfile, "Update PID file $filepid");
$pid > io($filepid);
print " Worker process running.\n" if $verbose;
addlog ($logfile, "Parent process $$ is exiting");
exit 0;
sub main {
$request = FCGI::Request( \*STDIN, \*STDOUT, \*STDERR, \%req_params, $socket );
if ($request) { request_loop()};
FCGI::CloseSocket( $socket );
}
sub request_loop {
while( $request->Accept() >= 0 ) {
# processing any STDIN input from WebServer (for CGI-POST actions)
$stdin_passthrough = '';
$req_len = 0 + $req_params{'CONTENT_LENGTH'};
if (($req_params{'REQUEST_METHOD'} eq 'POST') && ($req_len != 0) ){
while ($req_len) {
$stdin_passthrough .= getc(STDIN);
$req_len--;
}
}
# running the cgi app
if ( (-x $req_params{SCRIPT_FILENAME}) &&
(-s $req_params{SCRIPT_FILENAME}) &&
(-r $req_params{SCRIPT_FILENAME})
){
foreach $key ( keys %req_params){
$ENV{$key} = $req_params{$key};
}
if ( $verbose ) {
addlog($logfile, "running $req_params{SCRIPT_FILENAME}");
}
# http://perldoc.perl.org/perlipc.html#Safe-Pipe-Opens
#
open $cgi_app, '-|', $req_params{SCRIPT_FILENAME}, $stdin_passthrough or print("Content-type: text/plain\r\n\r\n"); print "Error: CGI app returned no output - Executing $req_params{SCRIPT_FILENAME} failed !\n"; # addlog($logfile, "Error: CGI app returned no output - Executing $req_params{SCRIPT_FILENAME} failed !");
if ($cgi_app) {
print <$cgi_app>;
close $cgi_app;
}
} else {
print("Content-type: text/plain\r\n\r\n");
print "Error: No such CGI app - $req_params{SCRIPT_FILENAME} may not exist or is not executable by this process.\n";
addlog($logfile, "Error: No such CGI app - $req_params{SCRIPT_FILENAME} may not exist or is not executable by this process.");
}
}
}
8.授予脚本可执行权限：
# cd /usr/local/nginx/sbin/
# ls
nginxnginx-fcginginx.old
# chmod a+x nginx-fcgi
并启动脚本：
/usr/local/nginx/sbin/nginx-fcgi -l /usr/local/nginx/logs/nginx-fcgi.log -pid /usr/local/nginx/logs/nginx-fcgi.pid -S /usr/local/nginx/logs/nginx-fcgi.sock
查看是否启动：
# ps -aux |grep fcgi
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.8/FAQ
root 67100.00.2 1364044540 pts/2 S 17:42 0:00 /usr/bin/perl /usr/local/nginx/sbin/nginx-fcgi -l /usr/local/nginx/logs/nginx-fcgi.log -pid /usr/local/nginx/logs/nginx-fcgi.pid -S /usr/local/nginx/logs/nginx-fcgi.sock
root 67120.00.0 103172 848 pts/2 S+ 17:42 0:00 grep fcgi
已经正常启动。
授予nginx-fcgi.sock 777权限。
# chmod -R 777 /usr/local/nginx/logs/nginx-fcgi.sock
9.设置登录密码保证安全：
# htpasswd -c /usr/local/nginx/conf/htpasswd nagios
New password:
Re-type new password:
Adding password for user nagios
10.在nginx里面设置一个虚拟主机：
server
{
listen 80;
server_name nagios.a.com;
index index.html index.htm index.php default.html default.htm default.php;
root /usr/local/nagios/share; auth_basic "nagios"; auth_basic_user_file /usr/local/nginx/conf/htpasswd;
location ~ \.cgi$ {
root /usr/local/nagios/sbin;
rewrite ^/nagios/cgi-bin/(.*)\.cgi /$1.cgi break;
fastcgi_index index.cgi;
fastcgi_pass unix:/usr/local/nginx/logs/nginx-fcgi.sock;
fastcgi_param SCRIPT_FILENAME /usr/local/nagios/sbin$fastcgi_script_name;
fastcgi_param QUERY_STRING $query_string;
fastcgi_param REMOTE_ADDR $remote_addr;
fastcgi_param REMOTE_PORT $remote_port;
fastcgi_param REQUEST_METHOD $request_method;
fastcgi_param REQUEST_URI $request_uri;
fastcgi_param REMOTE_USER $remote_user;
#fastcgi_param SCRIPT_NAME $fastcgi_script_name;
fastcgi_param SERVER_ADDR $server_addr;
fastcgi_param SERVER_NAME $server_name;
fastcgi_param SERVER_PORT $server_port;
fastcgi_param SERVER_PROTOCOL $server_protocol;
fastcgi_param SERVER_SOFTWARE nginx;
fastcgi_param CONTENT_LENGTH $content_length;
fastcgi_param CONTENT_TYPE $content_type;
fastcgi_param GATEWAY_INTERFACE CGI/1.1;
fastcgi_param HTTP_ACCEPT_ENCODING gzip,deflate;
fastcgi_param HTTP_ACCEPT_LANGUAGE zh-cn;
}
location ~ .*\.(php|php5)?$
{
try_files $uri =404;
fastcgi_passunix:/tmp/php-cgi.sock;
fastcgi_index index.php;
include fcgi.conf;
}
location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
{
expires 30d;
}
location ~ .*\.(js|css)?$
{
expires 12h;
}
access_log/home/wwwlogs/nagios.a.com.lognagios.a.com;
}
重新加载配置文件：
# /usr/local/nginx/sbin/nginx -s reload
11.如果图片加载不正常加个链接就好了：
# mkdir -p /usr/local/nagios/share/nagios
# ln -s /usr/local/nagios/share/images /usr/local/nagios/share/nagios/images
# ln -s /usr/local/nagios/share/stylesheets /usr/local/nagios/share/nagios/stylesheets
12.配置可加载GD动态库：
vim /etc/ld.so.conf
include ld.so.conf.d/*.conf
/usr/local/gd/lib #加入GD动态库路径
然后手动运行一下：
ldconfig
解决了map和trends错误的问题！
也许放弃才能靠近你不再见你你才会把我想起 青春仿佛因我爱你而开始，却令我看破爱这个字。 最初的那些誓言，却抵不过时间的摧残。
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