1MRTG-NW-GUIDE(1) mrtg MRTG-NW-GUIDE(1)
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6 mrtg-nw-guide - MRTG for NetWare
7
9 This guide is intended to aid in the installation and configuration of
10 MRTG on a NetWare server.
11
13 MRTG is a relative newcomer to the NetWare platform. Earlier versions
14 of NetWare could not run MRTG natively for several reasons:
15 · Absence of NetWare OS support in the MRTG package.
17 · A NetWare server commandline length limitation.
19 · Absence of the Rateup executable (Rateup.nlm).
21 · A standard installation method.
23 · Problems with NetWare's implementation of Perl.
25 Support for the NetWare OS has now been fully added into MRTG, begin‐
27 ning with MRTG release 2.12.2.
28 Liberallly minded operating systems support a commandline length
30 approaching 1000 characters. In such environments it was an easy matter
31 to pass the sometimes high number of parameters used by MRTG's Rateup
32 executable directly on the commandline. Until NetWare 6.5, NetWare had
33 a commandline limit of 512 characters. This limitation was also removed
34 for NetWare 6.0 by Service Pack 5. For other NetWare versions and ear‐
35 lier Service Packs, this limitation remains. To permit a 'standard'
36 interface for NetWare, the Rateup executable has been modified to also
37 read its parameters from a file, and the MRTG script has been modified
38 to support this method on a NetWare platform. (See New Rateup Switch)
39 A Rateup NLM is now available, along with the necessary scripts to
41 build it if required. See the NetWare Support section of this document
42 for further details. Additionally, mrtg.pl has been revised because of
43 the unique (to NetWare) name of executables (NLM).
44 The absence of a specific installation procedure has caused MRTG to
46 fail in the past because the Perl script could not find or load the
47 Rateup executable. The installation method supplied here will solve
48 this problem for now.
49 The MRTG.pl script in the 2.12.2 (or later) version of MRTG has been
51 configured to suit all likely versions of NetWare able to use Perl5,
52 and bypasses all of the known problems with NetWare Perl running MRTG.
53
55 You will need the following:
56 · Perl 5.8.0 for NetWare with latest Perl Updates (February, 2005 or
58 later; previous versions MAY work)
59 · NetWare 5.1 w/ SP8, NetWare 6.0 w/ SP5 or NetWare 6.5 w/ SP2.
61 · A copy of the MRTG Package (v2.12.2 at time of writting)
63 · Three .ncf files to execute the Perl scripts at the NetWare server
65 console.
66 · A copy of the Rateup NLM (Pre-built or compiled)
68 · Optionally, any NetWare supported Web Server (Netscape, Apache 1.3
70 or 2.0)
71 For copies of the .ncf files and Rateup NLM, see NetWare Support in
73 this document.
74
76 1. Install the latest Perl 5.8.x release on your server. See the Perl
77 documentation for details.
78 2. Create the following directories:
80 SYS:/Mrtg
82 SYS:/Mrtg/bin
83 SYS:/Mrtg/contrib (Optional for this document)
84 SYS:/Mrtg/doc (Optional for this document)
85 SYS:/Mrtg/html
86 SYS:/Mrtg/html/images
87 SYS:/Mrtg/html/work
88 SYS:/Mrtg/lib
89 SYS:/Mrtg/logs
90 SYS:/Mrtg/translate
91 3. Copy from the MRTG package the following files:
93 \bin\* to SYS:/Mrtg/bin All files. See Note 1.
95 Note 1: Add a .pl extension to the mrtg, cfgmaker and indexmaker files.
97 The rateup.exe will NOT be needed on the NetWare server.
98 \contrib\* to SYS:/Mrtg/contrib/ Include sub-directories
100 \doc\* to SYS:/Mrtg/doc/ All files
101 \images\* to SYS:/Mrtg/html/images/ All files
102 \translate\* to SYS:/Mrtg/translate/ All files. See Note 2.
103 Note 2: For English-only language support, all \translate files EXCEPT Locales_mrtg may be deleted.
105 \lib\* to SYS:/Mrtg/lib Include sub-directories. See Note 3.
107 Note 3: This will create the SYS:/Mrtg/lib/mrtg2 and ./pod directories.
109 4. Create copies of the three .ncf files and install them:
111 *.ncf to SYS:/Mrtg/bin
113 See NetWare Support in this document for details on how to create
115 copies of these files.
116 5. See Compiling Rateup.nlm"> in this document for details on compil‐
118 ing the Rateup NLM yourself if desired. A prebuit verion is avail‐
119 able in the .\mrtg\bin directory where it must remain.
120
122 · Refer to Novell documentation on configuring and loading SNMP sup‐
123 port on your server if this is the device to be monitored.
124 · Edit sys:/mrtg/bin/MakeMrtgCfg.ncf:
126 - replace ccccc with the GET community name for the SNMP device (typically 'public'),
128 - replace ddddd with the DNS name or IP address of the device to be monitored.
129 e.g public@www.myserver.com, public@10.202.65.180
131 Note 1: These are NOT mail addresses, they just look like one!
133 Note 2: If multiple devices are to be monitored, add their entries to the same line:
134 e.g perl cfgmaker.pl public@www.myserver.com public@10.202.65.180 > sys:/mrtg/bin/mrtg.cfg
136 In this "Getting Started", it is 'suggested' to only monitor a sin‐
138 gle device.
139 · At the server console, run:
141 sys:/mrtg/bin/MakeMrtgCfg.ncf
143 This will create Mrtg.cfg in sys:/mrtg/bin.
145 · Edit the Mrtg.cfg configuration file created in the previous step.
147 Note the following:
148 It was found, when testing MRTG on a NetWare 6.5 server using a NIC
150 Interface, that mrtg.cfg contained the following message:
151 ### Interface 1 >> Descr: 'Intel(R)-8255x-based-Network-Connection'...
153 ### The following interface is commented out because:
154 ### * has a speed of 0 which makes no sense
155 #
156 ...
157 If this occurs, edit MakeMrtgCfg.ncf and add the following parame‐
159 ter as shown:
160 perl sys:\mrtg\bin\cfgmaker.pl --zero-speed=nnn public@10.202.65.180 > sys:\mrtg\bin\Mrtg.cfg
162 where nnn is the interface speed in bits per second. For a 100
164 Megabit LAN NIC, nnn = 10000000. It will be necessary to re-execute
165 the MakeMrtgCfg.ncf script before continuing with this section.
166 Below line 16 (*** Global Defaults), add:
168 HtmlDir: <a path> e.g HtmlDir: sys:/mrtg/html
170 ImageDir: <a path> e.g ImageDir: sys:/mrtg/html/work
171 LogDir: <a path> e.g LogDir: sys:/mrtg/logs
172 IconDir: <a path> e.g IconDir: ./images
173 Note 1
175 The HtmlDir entry specifies where MRTG will create its HTML
176 pages.
177 Note 2
179 The ImageDir entry specifies where the created graphic icons
180 are placed.
181 Note 3
183 The IconDir entry specifies where the supplied MRTG icons are
184 located. It MUST be a relative path from HtmlDir or absolute
185 URL. The value shown is recommended.
186 · At the server console run:
188 sys:/mrtg/bin/RunMrtg.ncf
190 several times. By the third time it should run without showing
192 error messages on the console screen. This should create:
193 · A HTML page in the (HtmlDir) directory for each monitored
195 device,
196 · A .dat file in the (ImageDir) directory for each monitored
198 device,
199 · Several .png icons in the (ImageDir) directory,
201 · Some log file entries in the (LogDir) directory.
203 Note: If you experience a "Use of uninitialised value in split"
205 error, it will be necessary to create a 'Path' environment variable
206 at the server console; use the following example
207 env path="SYS:\" (The actual value is immaterial, as long as the var itself exists.)
209 · Edit sys:/mrtg/bin/MakeMrtgIndex.ncf. Change the indicated <path>
211 shown in the following example to match the value entered for
212 (HtmlDir).
213 perl --noscreen sys:/mrtg/bin/indexmaker.pl sys:/mrtg/bin/Mrtg.cfg > <path>/index.html
215 · Create an index.html page linking the seperate device HTML page(s).
217 At the server console, run:
218 sys:/mrtg/bin/MakeMrtgIndex.ncf
220 This will create index.html in the (HtmlDir) directory.
222 · Optionally, configure a Web Server to permit access to the direc‐
224 tory specified in (HtmlDir) to view the MRTG graphs remotely, at,
225 for example:
226 http://ip_or_dns/mrtg/index.html
228 A sample configuration for an Apache Webserver is shown:
230 Alias /mrtg/ "SYS:/mrtg/html/"
232 <Directory "SYS:/mrtg/html">
233 AllowOverride None
234 Order allow,deny
235 Allow from all
236 </Directory>
237 · Set the property of the directory pointed to by (ImageDir), to
239 'Purge Immediate'.
240 · Finally, read the MRTG documentation for much more detailed config‐
242 uration/usage information.
243 Welcome to MRTG!!
245
247 MRTG can be made to run periodically by at least two means:
248 · Using CRON Scheduling
250 · Running MRTG in Daemon Mode
252 CRON Scheduling
254 To use CRON scheduling, create a CRON Scheduler entry to execute the
256 RunMrtg.ncf file on a frequency appropriate for the server environment
257 and information desired. The following entry in the sys:\etc\crontab
258 file will execute MRTG every five minutes:
259 0,5,10,15,20,25,30,35,40,45,50,55 * * * * sys:\mrtg\bin\runmrtg.ncf
261 The CRON Scheduler (cron.nlm) can be started automatically by adding it
263 in AUTOEXEC.ncf or, manually loading it at the server console.
264 MRTG in Daemon Mode
266 Refer to the MRTG-Reference document for information about the 'RunAs‐
268 Daemon' option. Its use is outside the scope of this document.
269
271 Read the MRTG documents, Perl documents or, finally, submit questions
272 to the MRTG User forums.
273 For NetWare specific issues, submit questions to the Perl forum at
275 news://developer-forums.novell.com/novell.devsup.perl (Novell Developer
276 Forums).
277
279 In addition to the rateup.c and Makefile.Netware supplied with the MRTG
280 release, you will also need:
281 · Metrowerks CodeWarrior with NetWare Support OR GCC Compiler (v3.0.3
283 or later) with NlmConv Utility
284 · Novell LibC NDK (February 2004 or later)
286 · GD Graphics Library (v2.0.33 or later)
288 · LibPNG Graphics Library (v1.2.8 or later)
290 · ZLib Library (v1.2.3 or later)
292 · The get_ver.awk script
294 · A copy of the GNU build tools. (See http://source‐
296 forge.net/projects/gnuwin32/)
297 The auxiliary libraries can be obtained from:
299 GD Graphics Library. (See http://www.boutell.com/gd/ )
301 PNG Graphics Library. (See http://libpng.sourceforge.net/ )
303 zLib Compression Library. (See http://www.gzip.org/zlib/ )
305 Edit the Makefile.Netware file as required to match your installation
307 paths; search the file for the key word 'Edit'.
308
310 For copies of the NCF and get_ver.awk scripts, see Appendix.
311 For NetWare specific issues, submit questions to the Perl forum at
313 news://developer-forums.novell.com/novell.devsup.perl (Novell Developer
314 Forums).
315 To move the MRTG application to a volume other than SYS: you will need
317 to edit the NCF scripts provided plus the MRTG[.pl] script itself in
318 two places.
319
321 The MRTG[.pl] script, when used on a NetWare platform, uses
322 Rateup[.nlm] with the new commandline switch:
323 RATEUP -f filename
325 where the filename parameter can include a leading path element.
327 The file format is exactly the same as that used on the commandline by
329 other operating systems, including the leading path and name of the
330 Rateup NLM.
331
333 The Appendix includes 'copies' of the following files:
334 · The NCF files used during MRTG configuration,
336 To create copies of these files, simply 'cut and paste' into your
338 favourite 'text editor' and save under their respective names. You
339 should remove the leading space from each line.
340 MakeMrtgCfg.NCF
342 # MakeMrtgCfg.NCF
344 # Purpose : Create the MRTG Configuration File
345 # Changed : 5/05/2005 New
346 # Located : SYS:MRTG\BIN
347 # Set For :
348 # Params :
349 # Edit this file and:
351 # Replace ccccc with your device GET SNMP Community Name - If unsure try 'public'.
353 # Replace ddddd with your device IP (n.n.n.n) or domain name.
354 perl --noscreen sys:\mrtg\bin\cfgmaker.pl ccccc@ddddd > sys:\mrtg\bin\Mrtg.cfg
356 #
358 # End of MakeMrtgCfg.NCF
359 RunMrtg.NCF
361 # RunMrtg.NCF
363 # Purpose : Run the MRTG Application
364 # Changed : 5/05/2005 New
365 # Located : SYS:MRTG\BIN
366 # Set For :
367 # Params :
368 # The paths are as per the examples recommended in "Getting Started".
370 perl --noscreen sys:\mrtg\bin\mrtg.pl sys:\mrtg\bin\mrtg.cfg
372 #
374 # End of RunMrtg.NCF
375 MakeMrtgIndex.NCF
377 # MakeMrtgIndex.NCF
379 # Purpose : Create the HTML Index File for MRTG HTML data pages
380 # Changed : 5/05/2005 New
381 # Located : SYS:MRTG\BIN
382 # Set For :
383 # Params :
384 # Note: Edit this file and change the redirected output to the location
386 # specified for HtmlDir or WorkDir. The sys:\apache2\htdocs\mrtg\index.html
387 # is based on the examples in "Getting Started".
388 perl --noscreen sys:\mrtg\bin\indexmaker.pl sys:\mrtg\bin\Mrtg.cfg > sys:\mrtg\html\index.html
390 #
392 # End of MakeMrtgIndex.NCF
393
395 GNU General Public License
396
398 The MRTG for NetWare exists largely through the efforts of Guenter
399 Knauf and feedback from beta testers.
400
402 Norm W..
4032.15.1 2007-02-01 MRTG-NW-GUIDE(1)