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+--- Thread: Syslog differences between Resident and Event Scripts (/showthread.php?tid=6349)
Syslog differences between Resident and Event Scripts - BarryFromBondi - 12.03.2026
I have the exact same Syslog set up in my Resident and Event Scripts - the Resident Scripts Syslog works, however the Event scripts doesnt
The syslog set up that works in Resident is
local socket = require("socket")
-------------------------------------------------
-- SYSLOG CONFIG
-------------------------------------------------
local SYSLOG_HOST = "192.168.1.51"
local SYSLOG_PORT = 1514
local HOSTNAME = "logicmachine"
local APPNAME = "solar-master"
local LOG_INTERVAL = 60 -- seconds
-------------------------------------------------
-- PERSISTENT UDP SOCKET
-------------------------------------------------
storage.syslog_socket = storage.syslog_socket or socket.udp()
local udp = storage.syslog_socket
udp:settimeout(0)
-------------------------------------------------
-- RFC5424 TIMESTAMP
-------------------------------------------------
local function rfc5424_time()
local now = os.time()
local utc = os.time(os.date("!*t", now))
local offset = os.difftime(now, utc)
local sign = "+"
if offset < 0 then sign = "-" end
offset = math.abs(offset)
local hours = math.floor(offset / 3600)
local mins = math.floor((offset % 3600) / 60)
return os.date("%Y-%m-%dT%H:%M:%S") ..
string.format("%s%02d:%02d", sign, hours, mins)
end
-------------------------------------------------
-- SYSLOG SENDER
-------------------------------------------------
local function slog(fields)
local timestamp = rfc5424_time()
local msg = "<14>1 "..timestamp.." "..HOSTNAME.." "..APPNAME.." - - - "..fields
udp:sendto(msg, SYSLOG_HOST, SYSLOG_PORT)
end
What needs to change for an Event Script to behave the same way and allow for logging to an external syslog server?
Thanks
RE: Syslog differences between Resident and Event Scripts - admin - 13.03.2026
Sharing socket between scripts is not possible. You can simply create a new socket for each slog() call.
Add the following code to Common functions to make slog() function available for all scripts.
Code:
local function rfc5424_time()
local now = os.time()
local utc = os.time(os.date("!*t", now))
local offset = os.difftime(now, utc)
local sign = "+"
if offset < 0 then sign = "-" end
offset = math.abs(offset)
local hours = math.floor(offset / 3600)
local mins = math.floor((offset % 3600) / 60)
return os.date("%Y-%m-%dT%H:%M:%S") ..
string.format("%s%02d:%02d", sign, hours, mins)
end
function slog(fields)
local SYSLOG_HOST = "192.168.0.2"
local SYSLOG_PORT = 1514
local HOSTNAME = "logicmachine"
local APPNAME = "solar-master"
local timestamp = rfc5424_time()
local msg = "<14>1 "..timestamp.." "..HOSTNAME.." "..APPNAME.." - - - "..fields
local sock = require('socket').udp()
sock:sendto(msg, SYSLOG_HOST, SYSLOG_PORT)
sock:close()
end