ntopng: error while loading shared libraries: libcap.so.2: cannot open shared object file: No such file or directory about ntopng-docker

[edgd1er]

@katacarbix,

At present time, images are build for amd64 and armv7 cpu architectures. Im' not sure ( haven't tested) that armv7 is compatible on a aarch64. I tried for another project to run a 32bit image on a 64bit kernel (Raspian OS, config.txt arm64_bit=1). the mongoDb is failing to access the memory.

on an amd64 running image, i have:

/# dpkg -l ntopng libpcap*
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name             Version          Architecture Description
+++-================-================-============-==============================================
ii  libpcap0.8:amd64 1.8.1-6          amd64        system interface for user-level packet capture
un  libpcap0.8-dev   <none>           <none>       (no description available)
ii  ntopng           4.3.210705-14833 amd64        Web-based traffic monitoring.
/# dpkg --print-architecture
amd64

as for the arm (Rpi3), I have the same issue:

ntopng_1  | + ntopng -w 0.0.0.0:27833 -r localhost:6379 -Z /monitor
ntopng_1  | ntopng: error while loading shared libraries: libcap.so.2: cannot open shared object file: No such file or directory
ntopng_redis_1 exited with code 1

the libpcap needed package is added when building for amd64 but not for arm.
the problem is not specific to Arch linux, nor arm64 architecture.
As I thought an Rpi wouldn't be powerfull enough to run ntopng, I didn't test it. :(

I'll have to look into that.

[edgd1er]

@katacarbix , you may try to fetch the last docker image. I have tested that image on a Rpi 2 (Raspbian GNU/Linux 10 (buster) / armv7l). At least, ntopng is running.

In the debian-slim armv7 image, the libcap2 is not installed nor added when installing ntopng.

[reeseovine]

It works!! Thank you @edgd1er 🎉