http:\/\/<ip address shelly>\/debug\/log<\/a><\/p>\n\n\n\nShelly waarschuwt er overigens voor om de debugging alleen aan te zetten wanneer dit nodig is, dit om “slijtage” van het flash geheugen te voorkomen. Ik heb er daarom voor gekozen om wel iedere avond om 00:00 uur de eventuele beschikbare logfiles te verzamen in \u00e9\u00e9n logfile. Als geen van de shellies in debug mode staat zal die leeg blijven. Pas als ik \u00e9\u00e9n of meerdere shellies in debug mode zet door onder Settings, Device Info de knop ‘Enable Debug Log” te activeren zal er zich debug info verzamelen in de logfile.<\/p>\n\n\n\n
Voor het verzamelen van de logfiles van alle shellies heb ik het volgende script gemaakt (Noot: Zorg er eerst wel voor dat alle shellies over de meest recente firmware beschikken)<\/p>\n\n\n\n
#! \/bin\/bash\r\n# script to collect Debug logfiles from all shellies\r\n#\r\n# Author: Syds Post\r\n# Version: 1.0\r\n\r\nshellies=$(arp -n | awk '{print $1}' | nslookup | grep shelly | awk '{print $4}')\r\n\r\nfor shelly in $shellies\r\ndo\r\n status=$(wget $shelly\/debug\/log 2>&1)\r\n echo $status >> shelly_logs.log\r\n cat log | sed \"s\/^\/$shelly $(date '+%Y%m%d ')\/g\" >> \/var\/log\/shelly.log\r\n rm log\r\ndone\r<\/pre>\n\n\n\nVoorbeeld van de genereerde log file (\/var\/log\/shelly.log<\/code>)<\/p>\n\n\n\nroot@raspberrypi:\/home\/pi\/scripts# cat \/var\/log\/shelly.log\r\nshelly1-E8DB84D44487.sydspost.nl. 20210802 623644671 mgos_sys_config.c:174 Saved to conf9.json\r\nshelly1-E8DB84D44487.sydspost.nl. 20210802 623756901 mgos_http_server.c:180 0x3fff24f4 HTTP connection from 192.168.2.123:60897\r\nshelly1-E8DB84D44487.sydspost.nl. 20210802 623770934 json.c:420 RAM: 50896 total, 37232 free\r\nshelly1-E8DB84D44487.sydspost.nl. 20210802 623786955 mgos_http_server.c:180 0x3fff247c HTTP connection from 192.168.2.123:57040\r\nshelly1-E8DB84D44487.sydspost.nl. 20210802 628753218 mgos_http_server.c:180 0x3fff24f4 HTTP connection from 192.168.2.123:53456\r\nshelly1-E8DB84D44487.sydspost.nl. 20210802 628765472 json.c:420 RAM: 50896 total, 37048 free\r\nshelly1-E8DB84D44487.sydspost.nl. 20210802 634407188 mgos_http_server.c:180 0x3fff243c HTTP connection from 192.168.2.123:63856\r\nshelly1-E8DB84D44487.sydspost.nl. 20210802 634422126 json.c:420 RAM: 50896 total, 37604 free\r\nshelly1-E8DB84D44487.sydspost.nl. 20210802 638212044 mgos_http_server.c:180 0x3fff24f4 HTTP connection from 192.168.2.29:41326\r<\/pre>\n\n\n\nVervolgens de executie van dit script toegevoegd aan de crontab van root:<\/p>\n\n\n\n
root@raspberrypi:\/home\/pi\/scripts# crontab -l\r\n# Edit this file to introduce tasks to be run by cron.\r\n#\r\n# Each task to run has to be defined through a single line\r\n# indicating with different fields when the task will be run\r\n# and what command to run for the task\r\n#\r\n# To define the time you can provide concrete values for\r\n# minute (m), hour (h), day of month (dom), month (mon),\r\n# and day of week (dow) or use '*' in these fields (for 'any').\r\n#\r\n# Notice that tasks will be started based on the cron's system\r\n# daemon's notion of time and timezones.\r\n#\r\n# Output of the crontab jobs (including errors) is sent through\r\n# email to the user the crontab file belongs to (unless redirected).\r\n#\r\n# For example, you can run a backup of all your user accounts\r\n# at 5 a.m every week with:\r\n# 0 5 * * 1 tar -zcf \/var\/backups\/home.tgz \/home\/\r\n#\r\n# For more information see the manual pages of crontab(5) and cron(8)\r\n#\r\n# m h dom mon dow command\r\n0 0 * * * \/home\/pi\/scripts\/shelly_logs.sh\r<\/pre>\n\n\n\nStap 7. OpenWRT routers configureren<\/p>\n\n\n\n
Open LUCI, de web user interface van je router in de browser, en log in. Kies vervolgens voor System -> System, en daarna voor het tabblad Logging:<\/p>\n\n\n\nVul bij External system log server het IP-address in van je syslog server, in mijn geval 192.168.2.29. De overige instellingen zijn default. Klik op Save & Apply, en de router\/accesspoint stuurt zijn logging naar je syslog server.<\/p>\n\n\n\n
Stap 8. Templates maken om de logentry’s op te splitsen<\/p>\n\n\n\n
Met deze configuratie komen alle logentry’s in de \/var\/log\/syslog file terecht op je centrale Syslog server. Dit kan erg onoverzichtelijk zijn. Ik heb er voor gekozen om de Tasmota en ESPEasy logentry’s in een aparte file op te slaan, namelijk \/var\/log\/tasmota.log<\/code>. Ook de logentry’s van de OpenWRT routers\/accesspoint laat ik in een aparte file terechtkomen, namelijk \/var\/log\/routers.log<\/code>. De logentry’s van de NSLU2 laat ik gewoon in de syslog file terechtkomen.<\/p>\n\n\n\nVoor het afsplitsen van de logentry’s van de Tasmota en ESPEasy devices de volgende template file gemaakt en deze in de map \/etc\/rsyslog.d geplaatst:<\/p>\n\n\n\n
pi@raspberrypi:\/etc\/rsyslog.d $ cat tasmota.conf\n $template tasmotalog, \"\/var\/log\/tasmota.log\"\n if ($programname contains 'ESP') \\\n or ($programname contains 'EspEasy') \\\n or ($rawmsg contains 'ESP Unit') \\\n or ($hostname == 'weerstation1.sydspost.nl') \\\n or ($hostname == 'bel.sydspost.nl') \\\n or ($hostname == 'filterindicatie.sydspost.nl') \\\n or ($hostname == 'bewegingsmeldergang.sydspost.nl') \\\n then -?tasmotalog\n & stop<\/pre>\n\n\n\nToelichting:<\/p>\n\n\n\n
De verschillende Tasmota en ESPEasy versies genereren verschillende syslog messages. Vandaar dat ik of filter op “programname”, de rawmsg of hostname. Indien een logentry voldoet aan \u00e9\u00e9n van de gestelde criteria’s, dan wordt de logentry weggeschreven naar de file \/var\/log\/tasmota.log, en niet langer naar de \/var\/log\/syslog file.<\/p>\n\n\n\n
Voor het afsplitsen van de logentry’s van de OpenWRT routers\/accesspoints de volgende template file gemaakt en deze in de map \/etc\/rsyslog.d<\/code> geplaatst:<\/p>\n\n\n\npi@raspberrypi:\/etc\/rsyslog.d $ cat routers.conf\n$template routerslog, \"\/var\/log\/routers.log\"\n\nif ($hostname == 'accesspoint2') \\\n or ($hostname == 'accesspoint3') \\\nthen -?routerslog\n& stop\n\n<\/pre>\n\n\n\nToelichting:<\/p>\n\n\n\n
De filtering van de routers kan simpelweg op hostname (zonder domeinnaam), in mijn geval accesspoint2 en accesspoint3. Indien een logentry voldoet aan \u00e9\u00e9n van de gestelde criteria’s, dan wordt de logentry weggeschreven naar de file \/var\/log\/routers.log<\/code>, en niet langer naar de \/var\/log\/syslog file<\/code>. Na een herstart van de rsyslog deamon wordt de template file actief, en worden de logentry’s van de routers\/accesspoints weggeschreven naar \/var\/log\/routers.log<\/code><\/p>\n\n\n\nsudo systemctl restart rsyslog<\/pre>\n\n\n\nStap 9. Log rotation geconfigureerd voor \/var\/log\/tasmota.log<\/code>, \/var\/log\/shelly.log<\/code> en \/var\/log\/routers.log<\/code><\/p>\n\n\n\nOm te voorkomen dat de log-file oneindig doorgroeit, en uiteindelijk je file-system doet vollopen nog log rotation geconfigureerd. Dit zorgt elke dag voor een verse schone logfile en archiveert de huidige logfile. Deze blijven vervolgens 7 dagen bewaard. Dit doe je als volgt:<\/p>\n\n\n\n
sudo vi \/etc\/logrotate.d\/tasmota<\/pre>\n\n\n\nKopieer onderstaande configuratie in dit file, en sla deze op<\/p>\n\n\n\n
\/var\/log\/tasmota.log\n{\n rotate 4\n weekly\n missingok\n notifempty\n compress\n delaycompress\n}<\/pre>\n\n\n\nDoe hetzelfde voor de logfile \/var\/log\/shelly.log<\/code> en \/var\/log\/routers.log<\/code>. Test de logrotation met<\/p>\n\n\n\nsudo logrotate -f \/etc\/logrotate.conf\n\nls -lia \/var\/log\/tasmota.* \/var\/log\/routers.* \/var\/log\/shelly.*<\/pre>\n\n\n\n
pi@raspberrypi:\/etc\/rsyslog.d $ ls -lia \/var\/log\/tasmota.* \/var\/log\/routers.* \/var\/log\/shelly.*\n12546 -rw-r----- 1 root adm 194 jul 29 16:17 \/var\/log\/routers.log\n 7012 -rw-r----- 1 root adm 49907 jul 29 16:16 \/var\/log\/routers.log.1\n20518 -rw-r--r-- 1 root root 0 jul 29 16:17 \/var\/log\/tasmota.log\n41227 -rw-r--r-- 1 root root 73509 jul 29 16:17 \/var\/log\/tasmota.log.1\n11549 -rw-r--r-- 1 root root 0 aug 2 15:37 \/var\/log\/shelly.log\n14358 -rw-r--r-- 1 root root 1059 aug 2 15:32 \/var\/log\/shelly.log.1<\/pre>\n\n\n\nStap 10. Critical errors filteren en weergeven in Nagios<\/p>\n\n\n\n
Hiervoor gebruik ik de nagios plugin check_log (Wordt standaard meegeleverd). Aan de \/usr\/local\/nagios\/etc\/objects\/commands.cfg<\/code> file de volgende commando definitie toegevoegd:<\/p>\n\n\n\ndefine command {\n command_name check_log\n command_line $USER1$\/check_log -F $ARG1$ -O $ARG1$.old -q $ARG2$\n\n}<\/pre>\n\n\n\nToelichting:<\/p>\n\n\n\n
$ARG1$: Naam logfile (bijv. \/var\/log\/tasmota.log)<\/p>\n\n\n\n
$ARG2$: Uit te voeren query (bijv. ‘Error’)<\/p>\n\n\n\n
Voor de controle van de verschillende logfiles heb ik een nieuwe configuratie file logging.cfg<\/code> in het leven geroepen. Om deze te activeren dient deze toegevoegd te worden aan \/usr\/local\/nagios\/etc\/nagios.cfg<\/code>:<\/p>\n\n\n\n# You can specify individual object config files as shown below:\ncfg_file=\/usr\/local\/nagios\/etc\/objects\/commands.cfg\ncfg_file=\/usr\/local\/nagios\/etc\/objects\/logging.cfg<\/pre>\n\n\n\nOm de notificaties rondom de logfiles te groeperen, tevens een servicegroup “logfiles” aangemaakt, hiervoor de file \/usr\/local\/nagios\/etc\/objects\/servicegroups.cfg<\/code> aangemaakt met de volgende inhoud:<\/p>\n\n\n\npi@raspberrypi:\/usr\/local\/nagios\/etc\/objects $ cat servicegroups.cfg\ndefine servicegroup {\n servicegroup_name logfiles\n alias Logfiles\n}<\/pre>\n\n\n\nOok deze configuratiefile dient bekend gemaakt te worden in \/usr\/local\/nagios\/etc\/nagios.cfg<\/code>: <\/p>\n\n\n\n# You can specify individual object config files as shown below:\ncfg_file=\/usr\/local\/nagios\/etc\/objects\/commands.cfg\ncfg_file=\/usr\/local\/nagios\/etc\/objects\/servicegroups.cfg\ncfg_file=\/usr\/local\/nagios\/etc\/objects\/logging.cfg<\/pre>\n\n\n\nVervolgens het uitlezen van de verschillende logfiles uitgewerkt in \/usr\/local\/nagios\/etc\/objects\/logging.cfg<\/code>:<\/p>\n\n\n\n###############################################################################\n# LOGGING.CFG\n#\n###############################################################################\n\n\n\n###############################################################################\n#\n# HOST DEFINITION\n#\n###############################################################################\n\ndefine host {\n\n use linux-server ; Name of host template to use\n ; This host definition will inherit all variables that are defined\n ; in (or inherited by) the linux-server host template definition.\n host_name raspberrypi.sydspost.nl\n display_name Pi\n address 192.168.2.29\n contacts nagiosadmin\n ; check_interval 60\n}\n\n###############################################################################\n#\n# LOGGING DEFINITION\n#\n###############################################################################\n\ndefine service {\n use local-service\n host_name raspberrypi.sydspost.nl\n service_description Domoticz logging\n check_command check_log!\/var\/log\/domoticz.log!Error\n servicegroup logfiles\n}\n\r\ndefine service {\r\n use local-service\r\n host_name raspberrypi.sydspost.nl\r\n service_description Router logging\r\n check_command check_log!\/var\/log\/routers.log!Failed\r\n servicegroups logfiles\r\n}\r\n<\/pre>\n\n\n\nTest de juistheid van de configuratiefiles met het volgende commando<\/p>\n\n\n\n
sudo \/usr\/local\/nagios\/bin\/nagios -v \/usr\/local\/nagios\/etc\/nagios.cfg<\/pre>\n\n\n\nDit geeft de volgende output:<\/p>\n\n\n\n
pi@raspberrypi:\/usr\/local\/nagios\/etc\/objects $ sudo \/usr\/local\/nagios\/bin\/nagios -v \/usr\/local\/nagios\/etc\/nagios.cfg\r\n\r\nNagios Core 4.4.6\r\nCopyright (c) 2009-present Nagios Core Development Team and Community Contributors\r\nCopyright (c) 1999-2009 Ethan Galstad\r\nLast Modified: 2020-04-28\r\nLicense: GPL\r\n\r\nWebsite: https:\/\/www.nagios.org\r\nReading configuration data...\r\n Read main config file okay...\r\n Read object config files okay...\r\n\r\nRunning pre-flight check on configuration data...\r\n\r\nChecking objects...\r\n Checked 69 services.\r\n Checked 58 hosts.\r\n Checked 5 host groups.\r\n Checked 1 service groups.\r\n Checked 1 contacts.\r\n Checked 1 contact groups.\r\n Checked 30 commands.\r\n Checked 6 time periods.\r\n Checked 0 host escalations.\r\n Checked 0 service escalations.\r\nChecking for circular paths...\r\n Checked 58 hosts\r\n Checked 0 service dependencies\r\n Checked 0 host dependencies\r\n Checked 6 timeperiods\r\nChecking global event handlers...\r\nChecking obsessive compulsive processor commands...\r\nChecking misc settings...\r\n\r\nTotal Warnings: 0\r\nTotal Errors: 0\r\n\r\nThings look okay - No serious problems were detected during the pre-flight check<\/pre>\n\n\n\nIndien er geen warning en\/of errors in voorkomen, dan heb je een en ander goed geconfigureerd. <\/p>\n\n\n\n
Om het uitlezen van de logfiles door Nagios mogelijk te maken dient deze leesrechten te krijgen op de files, voer het volgende commando uit om dit te bewerkstelligen:<\/p>\n\n\n\n
sudo chmod 644 \/var\/log\/routers.log \/var\/log\/tasmota.log<\/pre>\n\n\n\nHerstart Nagios nu met:<\/p>\n\n\n\n
sudo service nagios restart<\/pre>\n\n\n\nGa vervolgens met je browser naar http:\/\/<ip address van je nagios server>>\/nagios en log in, de servicegroup “logfiles” vindt je onder Servicegroups<\/p>\n\n\n\nKlik op “Logfiles” om de details van deze servicegroup te kunnen inzien<\/p>\n\n\n\nToen ik deze week voor het eerst na een paar maanden de syslog van de NSLU2 eens nakeek, ontdekte ik<\/p>\n
Verder lezenSyslog server inrichten<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":1029,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[43],"tags":[119,110,85,128,127,7],"class_list":["post-1018","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-domotica-software","tag-debian-8-jessie","tag-espeasy","tag-nagios","tag-rsyslog","tag-syslog","tag-tasmota"],"yoast_head":"\nSyslog server inrichten - Mijn domotica projecten<\/title>\n<meta name=\"description\" content=\"Centrale syslog server inrichten zodat alle errors van je devices in het netwerk op 1 centrale plek na te lezen zijn. 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