Mailing List Archive: Various Interface Name Errors

Various Interface Name Errors

Apr 11, 2017, 5:12 AM

Post #1 of 4 (780 views)

Hi,

We had a working installation which, after an apt upgrade (to latest stable) is now somewhat broken and I’m unable to find why.

Topology is simple: Multiple Cisco devices emitting Netflow -> nprobe instances -> ntopng
(The probes and ntopng are on the same machine)

All the errors relate to the lack of an interface name, for example:

Apr 11 12:46:45 ntopng ntopng: [Lua.cpp:76] ERROR: ntop_select_interface : expected string, got nil
Apr 11 12:46:45 ntopng ntopng: [Lua.cpp:76] ERROR: ntop_interface_name2id : expected string, got nil
Apr 11 12:46:45 ntopng ntopng: [Lua.cpp:5134] WARNING: Script failure [/usr/share/ntopng/scripts/lua/as_stats.lua][/usr/share/ntopng/scripts/lua/modules/lua_utils.lua:1686: attempt to concatenate local 'interface_name' (a nil value)]

The web interface reports this at the bottom of every page and most of the pages are unable to display data because of it:

/usr/share/ntopng/scripts/lua/if_stats.lua:72: attempt to concatenate global 'ifid' (a nil value)

[NTOPNG.CONF]
-i="tcp://127.0.0.1:95101"
-i="tcp://127.0.0.1:95201"
-i="tcp://127.0.0.1:95301"
-i="tcp://127.0.0.1:95302"
-i="tcp://127.0.0.1:95401"
-i="tcp://127.0.0.1:92101"
-i="tcp://127.0.0.1:92102"
-i="tcp://127.0.0.1:92103"
-i="tcp://127.0.0.1:92104"
-i="tcp://127.0.0.1:90001"
-i="tcp://127.0.0.1:90002"
-i="tcp://127.0.0.1:90003"
-i="tcp://127.0.0.1:90004"
-i="tcp://127.0.0.1:90005"
-i="tcp://127.0.0.1:90006"
-i="tcp://127.0.0.1:90007"
--pid=/var/run/ntopng.pid
--community=
--max-num-flows=512000
--max-num-hosts=256000
--dns-mode=3
--data-dir=/ntopng
--sticky-hosts=none
--local-networks="xxx"
--collector-sample-rate=20
--disable-login=1
--disable-alerts=
--http-port=x.x.x.x:80
--scripts-dir=/usr/share/ntopng/scripts
--daemon=
--dont-change-user=

[NPROBE-EXAMPLE]
--collector-port=12101
--zmq=tcp://127.0.0.1:92101
-V=9
-u=2101
-Q=2102
--max-num-flows=250000
--dump-stats=/ntopng/nprobe/rtr-121_1_flows_stats.txt
--collector-sample-rate=20
--syslog=RTR-121-01
--dont-drop-privileges=
-T="%IPV6_SRC_ADDR %IPV6_DST_ADDR %IPV4_SRC_ADDR %IPV4_DST_ADDR %IPV4_NEXT_HOP %INPUT_SNMP %OUTPUT_SNMP %IN_PKTS %IN_BYTES %OUT_PKTS %OUT_BYTES %FIRST_SWITCHED %LAST_SWITCHED %L4_SRC_PORT %L4_DST_PORT %TCP_FLAGS %PROTOCOL %SRC_TOS %SRC_AS %DST_AS"
-g=/var/run/nprobe-121-01.pid

Any pointers?

ROBERT WILLIAMS
TECHNICAL DIRECTOR

Custodian Data Centres
Tel: +44 (0) 1622 230382 || E-Mail: mailto:Robert@CustodianDC.com
http://www.CustodianDC.com

Disclaimer: https://www.CustodianDC.com/email-disclaimer
Registered Office: Vinters Business Park, New Cut Rd, Maidstone, ME14 5NZ.
Company Number: 07878023

_______________________________________________
Ntop mailing list
Ntop@listgateway.unipi.it
http://listgateway.unipi.it/mailman/listinfo/ntop

Re: Various Interface Name Errors [ In reply to ]

faranda at ntop

Apr 11, 2017, 4:00 PM

Post #2 of 4 (780 views)

Permalink

Hi Robert,

What it the exact version number of ntopng and nProbe that are you using?

You should flush your existing ntopng data in order to start with a
clean setup with the newly installed version:

1) systemctl stop ntopng

2) redis-cli flushall

3) rm -rf /ntopng (your ntopng data directory)

4) systemctl start ntopng

Regards,
Emanuele

On 04/11/2017 02:12 PM, Robert Williams wrote:
> Hi,
>
> We had a working installation which, after an apt upgrade (to latest stable) is now somewhat broken and I’m unable to find why.
>
> Topology is simple: Multiple Cisco devices emitting Netflow -> nprobe instances -> ntopng
> (The probes and ntopng are on the same machine)
>
> All the errors relate to the lack of an interface name, for example:
>
> Apr 11 12:46:45 ntopng ntopng: [Lua.cpp:76] ERROR: ntop_select_interface : expected string, got nil
> Apr 11 12:46:45 ntopng ntopng: [Lua.cpp:76] ERROR: ntop_interface_name2id : expected string, got nil
> Apr 11 12:46:45 ntopng ntopng: [Lua.cpp:5134] WARNING: Script failure [/usr/share/ntopng/scripts/lua/as_stats.lua][/usr/share/ntopng/scripts/lua/modules/lua_utils.lua:1686: attempt to concatenate local 'interface_name' (a nil value)]
>
> The web interface reports this at the bottom of every page and most of the pages are unable to display data because of it:
>
> /usr/share/ntopng/scripts/lua/if_stats.lua:72: attempt to concatenate global 'ifid' (a nil value)
>
> [NTOPNG.CONF]
> -i="tcp://127.0.0.1:95101"
> -i="tcp://127.0.0.1:95201"
> -i="tcp://127.0.0.1:95301"
> -i="tcp://127.0.0.1:95302"
> -i="tcp://127.0.0.1:95401"
> -i="tcp://127.0.0.1:92101"
> -i="tcp://127.0.0.1:92102"
> -i="tcp://127.0.0.1:92103"
> -i="tcp://127.0.0.1:92104"
> -i="tcp://127.0.0.1:90001"
> -i="tcp://127.0.0.1:90002"
> -i="tcp://127.0.0.1:90003"
> -i="tcp://127.0.0.1:90004"
> -i="tcp://127.0.0.1:90005"
> -i="tcp://127.0.0.1:90006"
> -i="tcp://127.0.0.1:90007"
> --pid=/var/run/ntopng.pid
> --community=
> --max-num-flows=512000
> --max-num-hosts=256000
> --dns-mode=3
> --data-dir=/ntopng
> --sticky-hosts=none
> --local-networks="xxx"
> --collector-sample-rate=20
> --disable-login=1
> --disable-alerts=
> --http-port=x.x.x.x:80
> --scripts-dir=/usr/share/ntopng/scripts
> --daemon=
> --dont-change-user=
>
> [NPROBE-EXAMPLE]
> --collector-port=12101
> --zmq=tcp://127.0.0.1:92101
> -V=9
> -u=2101
> -Q=2102
> --max-num-flows=250000
> --dump-stats=/ntopng/nprobe/rtr-121_1_flows_stats.txt
> --collector-sample-rate=20
> --syslog=RTR-121-01
> --dont-drop-privileges=
> -T="%IPV6_SRC_ADDR %IPV6_DST_ADDR %IPV4_SRC_ADDR %IPV4_DST_ADDR %IPV4_NEXT_HOP %INPUT_SNMP %OUTPUT_SNMP %IN_PKTS %IN_BYTES %OUT_PKTS %OUT_BYTES %FIRST_SWITCHED %LAST_SWITCHED %L4_SRC_PORT %L4_DST_PORT %TCP_FLAGS %PROTOCOL %SRC_TOS %SRC_AS %DST_AS"
> -g=/var/run/nprobe-121-01.pid
>
> Any pointers?
>
> ROBERT WILLIAMS
> TECHNICAL DIRECTOR
>
> Custodian Data Centres
> Tel: +44 (0) 1622 230382 || E-Mail: mailto:Robert@CustodianDC.com
> http://www.CustodianDC.com
>
> Disclaimer: https://www.CustodianDC.com/email-disclaimer
> Registered Office: Vinters Business Park, New Cut Rd, Maidstone, ME14 5NZ.
> Company Number: 07878023
>
>
>
>
> _______________________________________________
> Ntop mailing list
> Ntop@listgateway.unipi.it
> http://listgateway.unipi.it/mailman/listinfo/ntop

_______________________________________________
Ntop mailing list
Ntop@listgateway.unipi.it
http://listgateway.unipi.it/mailman/listinfo/ntop

Re: Various Interface Name Errors [ In reply to ]

Robert at CustodianDC

Apr 12, 2017, 5:19 AM

Post #3 of 4 (780 views)

Permalink

Hi Emanuele,

Thanks for that! I tried your steps and the installation is error-free once again :)

All the best!

ROBERT WILLIAMS
TECHNICAL DIRECTOR

Custodian Data Centres
Tel: +44 (0) 1622 230382 || E-Mail: mailto:Robert@CustodianDC.com
http://www.CustodianDC.com

Disclaimer: https://www.CustodianDC.com/email-disclaimer
Registered Office: Vinters Business Park, New Cut Rd, Maidstone, ME14 5NZ.
Company Number: 07878023

-----Original Message-----
From: ntop-bounces@listgateway.unipi.it [mailto:ntop-bounces@listgateway.unipi.it] On Behalf Of Emanuele Faranda
Sent: 12 April 2017 00:00
To: ntop@listgateway.unipi.it
Subject: Re: [Ntop] Various Interface Name Errors

Hi Robert,

What it the exact version number of ntopng and nProbe that are you using?

You should flush your existing ntopng data in order to start with a clean setup with the newly installed version:

1) systemctl stop ntopng

2) redis-cli flushall

3) rm -rf /ntopng (your ntopng data directory)

4) systemctl start ntopng

Regards,
Emanuele

On 04/11/2017 02:12 PM, Robert Williams wrote:
> Hi,
>
> We had a working installation which, after an apt upgrade (to latest stable) is now somewhat broken and I’m unable to find why.
>
> Topology is simple: Multiple Cisco devices emitting Netflow -> nprobe
> instances -> ntopng (The probes and ntopng are on the same machine)
>
> All the errors relate to the lack of an interface name, for example:
>
> Apr 11 12:46:45 ntopng ntopng: [Lua.cpp:76] ERROR:
> ntop_select_interface : expected string, got nil Apr 11 12:46:45
> ntopng ntopng: [Lua.cpp:76] ERROR: ntop_interface_name2id : expected
> string, got nil Apr 11 12:46:45 ntopng ntopng: [Lua.cpp:5134] WARNING:
> Script failure
> [/usr/share/ntopng/scripts/lua/as_stats.lua][./usr/share/ntopng/scripts
> /lua/modules/lua_utils.lua:1686: attempt to concatenate local
> 'interface_name' (a nil value)]
>
> The web interface reports this at the bottom of every page and most of the pages are unable to display data because of it:
>
> /usr/share/ntopng/scripts/lua/if_stats.lua:72: attempt to concatenate
> global 'ifid' (a nil value)
>
> [NTOPNG.CONF]
> -i="tcp://127.0.0.1:95101"
> -i="tcp://127.0.0.1:95201"
> -i="tcp://127.0.0.1:95301"
> -i="tcp://127.0.0.1:95302"
> -i="tcp://127.0.0.1:95401"
> -i="tcp://127.0.0.1:92101"
> -i="tcp://127.0.0.1:92102"
> -i="tcp://127.0.0.1:92103"
> -i="tcp://127.0.0.1:92104"
> -i="tcp://127.0.0.1:90001"
> -i="tcp://127.0.0.1:90002"
> -i="tcp://127.0.0.1:90003"
> -i="tcp://127.0.0.1:90004"
> -i="tcp://127.0.0.1:90005"
> -i="tcp://127.0.0.1:90006"
> -i="tcp://127.0.0.1:90007"
> --pid=/var/run/ntopng.pid
> --community=
> --max-num-flows=512000
> --max-num-hosts=256000
> --dns-mode=3
> --data-dir=/ntopng
> --sticky-hosts=none
> --local-networks="xxx"
> --collector-sample-rate=20
> --disable-login=1
> --disable-alerts=
> --http-port=x.x.x.x:80
> --scripts-dir=/usr/share/ntopng/scripts
> --daemon=
> --dont-change-user=
>
> [NPROBE-EXAMPLE]
> --collector-port=12101
> --zmq=tcp://127.0.0.1:92101
> -V=9
> -u=2101
> -Q=2102
> --max-num-flows=250000
> --dump-stats=/ntopng/nprobe/rtr-121_1_flows_stats.txt
> --collector-sample-rate=20
> --syslog=RTR-121-01
> --dont-drop-privileges=
> -T="%IPV6_SRC_ADDR %IPV6_DST_ADDR %IPV4_SRC_ADDR %IPV4_DST_ADDR %IPV4_NEXT_HOP %INPUT_SNMP %OUTPUT_SNMP %IN_PKTS %IN_BYTES %OUT_PKTS %OUT_BYTES %FIRST_SWITCHED %LAST_SWITCHED %L4_SRC_PORT %L4_DST_PORT %TCP_FLAGS %PROTOCOL %SRC_TOS %SRC_AS %DST_AS"
> -g=/var/run/nprobe-121-01.pid
>
> Any pointers?
>
> ROBERT WILLIAMS
> TECHNICAL DIRECTOR
>
> Custodian Data Centres
> Tel: +44 (0) 1622 230382 || E-Mail: mailto:Robert@CustodianDC.com
> http://www.CustodianDC.com
>
> Disclaimer: https://www.CustodianDC.com/email-disclaimer
> Registered Office: Vinters Business Park, New Cut Rd, Maidstone, ME14 5NZ.
> Company Number: 07878023
>
>
>
>
> _______________________________________________
> Ntop mailing list
> Ntop@listgateway.unipi.it
> http://listgateway.unipi.it/mailman/listinfo/ntop

_______________________________________________
Ntop mailing list
Ntop@listgateway.unipi.it
http://listgateway.unipi.it/mailman/listinfo/ntop

_______________________________________________
Ntop mailing list
Ntop@listgateway.unipi.it
http://listgateway.unipi.it/mailman/listinfo/ntop