[mrtg] Permission denied at /usr/bin/../lib64/mrtg2/MRTG_lib.pm line 1580

[Steve Shipway]

Well, for a start, your cron job appears to have a bug, as it is calling
MRTG passing the .ok file as a parameter instead of just using the .cfg
files.  The .ok file is a cache generated by a successful MRTG pass in the
same directory as the cfg file.

 

Secondly, you need to grant your MRTG process write permission to the
/etc/mrtg directory so that it can create these .ok files for the real .cfg
files.  When you run from the command line, you're likely running as your
own user or as root, and so have permission; but the user you run the MRTG
cron job as does not have permission (possibly you wrap it in a su wrapper
or something).  It is also possible that, though the directory is writeable,
the file /etc/mrtg/00255520WLC1.ok.ok already exists in there but is not
writeable, resulting in the error.  Check that this file doesn't exist and
view its permissions if it does; however, I think its very existence is due
to the first error I mentioned above.

 

Steve

 

Steve Shipway

s.shipway at auckland.ac.nz

 

From: mrtg [mailto:mrtg-bounces+s.shipway=auckland.ac.nz at lists.oetiker.ch]
On Behalf Of Courtney, Wrolf
Sent: Thursday, 25 September 2014 1:34 a.m.
To: mrtg at lists.oetiker.ch
Subject: [mrtg] Permission denied at /usr/bin/../lib64/mrtg2/MRTG_lib.pm
line 1580

 

I get the following error on one of my MRTG config files when I run it from
a cron job. I do not get the error when I run it from the command line. I
have plenty of other config files run from the same cron job that run just
fine.

 

ERROR: writing /etc/mrtg/00255520WLC1.ok.ok: Permission denied at
/usr/bin/../lib64/mrtg2/MRTG_lib.pm line 1580.

 

Anyone seen this before?

 

Wrolf Courtney

 

Contents of /etc/cron.d/mrtg

 

LANG=C

0-59/5 * * * * root bash -c "ls /etc/mrtg/*.cfg | xargs -l /usr/bin/mrtg"

 

Contents of /etc/mrtg/00255520WLC1.cfg (showing first interface only)

 

# Created by

# /usr/bin/cfgmaker --ifref=name --ifdesc=descr
--output=/etc/mrtg/00255520WLC1.

cfg --global "WorkDir: /var/www/mrtg/00255520WLC1" --global "Options[_]:
growrig

ht,bits" --snmp-options=:::::2 public at 10.3.3.1

 

 

### Global Config Options

 

#  for UNIX

# WorkDir: /home/http/mrtg

 

#  or for NT

# WorkDir: c:\mrtgdata

 

### Global Defaults

 

#  to get bits instead of bytes and graphs growing to the right

# Options[_]: growright, bits

 

EnableIPv6: no

WorkDir: /var/www/mrtg/00255520WLC1

Options[_]: growright,bits

 

######################################################################

# System: 00255520WLC1-1

# Description: Ethernet Routing Switch 5520-48T-PWR  HW:35       FW:6.0.0.6
SW

:v6.0.3.008 BN:08 (c) Nortel Networks

# Contact: NCSO - 646 252-5700

# Location: 331 Bay Street SIRR

######################################################################

 

 

### Interface 1 >> Descr:
'Nortel-Ethernet-Routing-Switch-5520-48T-PWR-Module---

Port-1' | Name: 'ifc1 (Slot: 1 Port: 1)' | Ip: '' | Eth: '' ###

 

Target[10.3.3.1_ifc1_(Slot_1_Port_1)]: #ifc1\ (Slot\:\ 1\ Port\:\ 1):public@

10.3.3.1:::::2

SetEnv[10.3.3.1_ifc1_(Slot_1_Port_1)]: MRTG_INT_IP=""
MRTG_INT_DESCR="Nortel-

Ethernet-Routing-Switch-5520-48T-PWR-Module---Port-1"

MaxBytes[10.3.3.1_ifc1_(Slot_1_Port_1)]: 1250000

Title[10.3.3.1_ifc1_(Slot_1_Port_1)]: Nortel Ethernet Routing Switch
5520-48T

-PWR Module - Port 1 -- 00255520WLC1-1

PageTop[10.3.3.1_ifc1_(Slot_1_Port_1)]: <h1>Nortel Ethernet Routing Switch
55

20-48T-PWR Module - Port 1 -- 00255520WLC1-1</h1>

                <div id="sysdetails">

                        <table>

                                <tr>

                                        <td>System:</td>

                                        <td>00255520WLC1-1 in 331 Bay Street
SIR

R</td>

                                </tr>

                                <tr>

                                        <td>Maintainer:</td>

                                        <td>NCSO - 646 252-5700</td>

                                </tr>

                                <tr>

                                        <td>Description:</td>

 
<td>Nortel-Ethernet-Routing-Switch-5520-

48T-PWR-Module---Port-1  </td>

                                </tr>

                                <tr>

                                        <td>ifType:</td>

                                        <td>ethernetCsmacd (6)</td>

                                </tr>

                                <tr>

                                        <td>ifName:</td>

                                        <td>ifc1 (Slot: 1 Port: 1)</td>

                                </tr>

                                <tr>

                                        <td>Max Speed:</td>

                                        <td>10.0 Mbits/s</td>

                                </tr>

                        </table>

                </div>

 

 

 

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