[ixpmanager] Issue with MRTG

[Konstantin Karosanidze]

Hello,

We are running IXPManager and struggling with MRTG integration.

Here are details and debug steps I have done, any idea or clue how to debug
further would be much appreciated.

problem is empty graphs on ixpmanager side, there is no any error in http
or laravel logs.

img tag contains only src="data:image/png;base64,"

I further investigated issue and made sure that mart itself working, to
check it I just dumped one of rrd files and it contains all the data, but
still all graphs shows as empty.

I would apriciate any idea/help to debug issue further.

IXPmanager: latest current release from GitHub
OS: AlmaLinux 8.7

MRTG: mrtg-2.17.7-1
RRDTool: rrdtool-1.7.0-16
PHP: PHP 8.0.27

PHP Modules installed:

[PHP Modules]
bcmath
bz2
calendar
Core
ctype
curl
date
dom
exif
fileinfo
filter
ftp
gd
gettext
hash
iconv
json
libxml
mbstring
mysql
mysqli
mysqlnd
openssl
pcntl
pcre
PDO
pdo_mysql
pdo_sqlite
Phar
posix
readline
Reflection
session
shmop
SimpleXML
snmp
sockets
sodium
SPL
sqlite3
standard
sysvmsg
sysvsem
sysvshm
tokenizer
xml
xmlreader
xmlwriter
xsl
Zend OPcache
zip
zlib

[Zend Modules]
Zend OPcache

MRTG and HTTPD are running under the same user to avoid any permission
issues and selinux is disabled.

Regards,
Konstantine
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