Hi Kevin,
Can you successfully use the redis cli tools? For example, can you
successfully run "redis-cli info" from the terminal?
Regards,
Emanuele
On 2/21/19 3:50 AM, Kevin Branch wrote:
This issue has come up with newer version(s) of the ntopng deb.
Specifically I was just now testing with this deb:
http://packages.ntop.org/apt-stable/16.04/x64/ntopng_3.8.190219-6179_amd64.deb
and using this /etc/ntopng/ntopng.conf
--http-port=0
--https-port=3000
--data-dir=/usr/local/ntopng
--local-networks="192.168.0.0/16,10.0.0.0/8,172.16.0.0/12
<http://192.168.0.0/16,10.0.0.0/8,172.16.0.0/12>"
--interface=eth1
--interface=eth2
--dns-mode=1
--community
--daemon
--disable-login=1
-G=/var/tmp/ntopng.pid
If I try to start it with "systemctl start ntopng", it fails with this
complaint even through stock Ubuntu redis-server is indeed running:
Feb 20 19:29:35 nsm.server.org
<http://nsm.server.org/> ntopng[7443]: 20/Feb/2019 19:29:35
[Redis.cpp:111] ERROR: ntopng requires redis server to be up and
running
Feb 20 19:29:35 nsm.server .org ntopng[7443]: 20/Feb/2019 19:29:35
[Redis.cpp:112] ERROR: Please start it and try again or use -r
Feb 20 19:29:35 nsm.server .org ntopng[7443]: 20/Feb/2019 19:29:35
[Redis.cpp:113] ERROR: to specify a redis server other than the
default
Manually adding the -r option to ntopng.conf pointed at the running
redis-server listener makes no difference.
But if I start it ntopng the manual way, it starts up, daemonizes, and
works just fine in my web browser:
/usr/local/bin/ntopng /etc/ntopng/ntopng.conf
In either case, my redis-server is installed and running just fine
root@nsm:~# apt info redis-server
E: Invalid operation info
root@nsm:~# apt show redis-server
Package: redis-server
Version: 2:3.0.6-1ubuntu0.3
Priority: optional
Section: universe/misc
Source: redis
Origin: Ubuntu
...
root@nsm:~# systemctl status redis-server
● redis-server.service - Advanced key-value store
Loaded: loaded (/lib/systemd/system/redis-server.service;
enabled; vendor preset: enabled)
Active: active (running) since Wed 2019-02-20 18:31:08 UTC;
56min ago
...
Somehow it appears that the running redis-server process is invisible
to systemd where ntopng is involved, thus preventing my from using
systemctl to start it.
Do you have any idea what might be going on?
Kevin Branch
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