1Smokeping_probes_AnotherCurl(3)    SmokePing   Smokeping_probes_AnotherCurl(3)
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NAME

6       Smokeping::probes::AnotherCurl - a curl(1) probe for SmokePing
7

OVERVIEW

9       Fetches an HTTP or HTTPS URL using curl(1).
10

SYNOPSIS

12        *** Probes ***
13
14        +AnotherCurl
15
16        binary = /usr/bin/curl
17        forks = 5
18        offset = 50%
19        step = 300
20
21        # The following variables can be overridden in each target section
22        agent = User-Agent: Lynx/2.8.4rel.1 libwww-FM/2.14 SSL-MM/1.4.1 OpenSSL/0.9.6c
23        extraargs = -6 --head --user user:password
24        extrare = / /
25        follow_redirects = yes
26        include_redirects = yes
27        insecure_ssl = 1
28        interface = eth0
29        pings = 5
30        ssl2 = 1
31        timeout = 20
32        urlformat = http://%host%/ # mandatory
33        write_out =
34
35        # [...]
36
37        *** Targets ***
38
39        probe = AnotherCurl # if this should be the default probe
40
41        # [...]
42
43        + mytarget
44        # probe = AnotherCurl # if the default probe is something else
45        host = my.host
46        agent = User-Agent: Lynx/2.8.4rel.1 libwww-FM/2.14 SSL-MM/1.4.1 OpenSSL/0.9.6c
47        extraargs = -6 --head --user user:password
48        extrare = / /
49        follow_redirects = yes
50        include_redirects = yes
51        insecure_ssl = 1
52        interface = eth0
53        pings = 5
54        ssl2 = 1
55        timeout = 20
56        urlformat = http://%host%/ # mandatory
57        write_out =
58

DESCRIPTION

60       (see curl(1) for details of the options below)
61

VARIABLES

63       Supported probe-specific variables:
64
65       binary
66           The location of your curl binary.
67
68           Default value: /usr/bin/curl
69
70       forks
71           Run this many concurrent processes at maximum
72
73           Example value: 5
74
75           Default value: 5
76
77       offset
78           If you run many probes concurrently you may want to prevent them
79           from hitting your network all at the same time. Using the probe-
80           specific offset parameter you can change the point in time when
81           each probe will be run. Offset is specified in % of total interval,
82           or alternatively as 'random', and the offset from the 'General'
83           section is used if nothing is specified here. Note that this does
84           NOT influence the rrds itself, it is just a matter of when data
85           acqusition is initiated.  (This variable is only applicable if the
86           variable 'concurrentprobes' is set in the 'General' section.)
87
88           Example value: 50%
89
90       step
91           Duration of the base interval that this probe should use, if
92           different from the one specified in the 'Database' section. Note
93           that the step in the RRD files is fixed when they are originally
94           generated, and if you change the step parameter afterwards, you'll
95           have to delete the old RRD files or somehow convert them. (This
96           variable is only applicable if the variable 'concurrentprobes' is
97           set in the 'General' section.)
98
99           Example value: 300
100
101       Supported target-specific variables:
102
103       agent
104           The "-A" curl(1) option.  This is a full HTTP User-Agent header
105           including the words "User-Agent:". Note that it does not need any
106           quotes around it.
107
108           Example value: User-Agent: Lynx/2.8.4rel.1 libwww-FM/2.14
109           SSL-MM/1.4.1 OpenSSL/0.9.6c
110
111       extraargs
112           Any extra arguments you might want to hand to curl(1). The
113           arguments should be separated by the regexp specified in "extrare",
114           which contains just the space character (" ") by default.
115
116           Note that curl will be called with the resulting list of arguments
117           without any shell expansion. If you need to specify any arguments
118           containing spaces, you should set "extrare" to something else.
119
120           As a complicated example, to explicitly set the "Host:" header in
121           Curl requests, you need to set "extrare" to something else, eg.
122           "/;/", and then specify "extraargs = --header;Host:
123           www.example.com".
124
125           Example value: -6 --head --user user:password
126
127       extrare
128           The regexp used to split the extraargs string into an argument
129           list, in the "/regexp/" notation.  This contains just the space
130           character (" ") by default, but if you need to specify any
131           arguments containing spaces, you can set this variable to a
132           different value.
133
134           Example value: / /
135
136           Default value: / /
137
138       follow_redirects
139           If this variable is set to 'yes', curl will follow any HTTP
140           redirection steps (the '-L' option).  If set to 'no', HTTP
141           Location: headers will not be followed. See also
142           'include_redirects'.
143
144           Example value: yes
145
146           Default value: no
147
148       include_redirects
149           If this variable is set to 'yes', the measurement result will
150           include the time spent on following any HTTP redirection steps. If
151           set to 'no', only the last step is measured. See also
152           'follow_redirects'.
153
154           Example value: yes
155
156           Default value: no
157
158       insecure_ssl
159           The "-k" curl(1) option. Accept SSL connections that don't have a
160           secure certificate chain to a trusted CA. Note that if you are
161           going to monitor https targets, you'll probably have to either
162           enable this option or specify the CA path to curl through extraargs
163           below. For more info, see the curl(1) manual page.
164
165           Example value: 1
166
167       interface
168           The "--interface" curl(1) option.  Bind to a specific interface, IP
169           address or host name.
170
171           Example value: eth0
172
173       pings
174           How many pings should be sent to each target, if different from the
175           global value specified in the Database section. Note that the
176           number of pings in the RRD files is fixed when they are originally
177           generated, and if you change this parameter afterwards, you'll have
178           to delete the old RRD files or somehow convert them.
179
180           Example value: 5
181
182       ssl2
183           The "-2" curl(1) option.  Force SSL2.
184
185           Example value: 1
186
187       timeout
188           The "-m" curl(1) option.  Maximum timeout in seconds.
189
190           Example value: 20
191
192           Default value: 10
193
194       urlformat
195           The template of the URL to fetch.  Can be any one that curl
196           supports.  Any occurrence of the string '%host%' will be replaced
197           with the host to be probed.
198
199           Example value: http://%host%/
200
201           This setting is mandatory.
202
203       write_out
204           Choose which write-out value you want to send to Smokeping. Value
205           can be one of: 'time_appconnect', 'time_connect',
206           'time_namelookup', 'time_pretransfer', 'time_redirect',
207           'time_starttransfer', 'time_total'.
208
209           Default behaviour is the same as legacy Curl probe one.
210

AUTHORS

212        Gerald Combs <gerald [AT] ethereal.com>
213        Niko Tyni <ntyni@iki.fi>
214        Jean Baptiste Favre <smokeping@jbfavre.org>
215

NOTES

217       You should consider setting a lower value for the "pings" variable than
218       the default 20, as repetitive URL fetching may be quite heavy on the
219       server.
220
221       The URL to be tested used to be specified by the variable 'url' in
222       earlier versions of Smokeping, and the 'host' setting did not influence
223       it in any way. The variable name has now been changed to 'urlformat',
224       and it can (and in most cases should) contain a placeholder for the
225       'host' variable.
226
227       Legacy Curl probe only returns page load time. With AnotherCurl, you
228       can specify which 'write-out' value you want to get (please refer to
229       curl(1) for more details about write_out option.
230

SEE ALSO

232       curl(1), <http://curl.haxx.se/>
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2362.7.2                             2019-02-02   Smokeping_probes_AnotherCurl(3)
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