Research
Security News
Malicious npm Packages Inject SSH Backdoors via Typosquatted Libraries
Socket’s threat research team has detected six malicious npm packages typosquatting popular libraries to insert SSH backdoors.
@log4js-node/logstashudp
Advanced tools
This is an optional appender for log4js-node.
npm install @log4js-node/logstashudp
The logstashUDP appender supports sending log events to a Logstash server. It uses the node.js core UDP support, and so requires no extra dependencies. Remember to call log4js.shutdown
in your application if you want the UDP socket closed cleanly.
type
- @log4js-node/logstashudp
host
- string
- hostname (or IP-address) of the logstash serverport
- integer
- port of the logstash serverlayout
- (optional, defaults to dummyLayout) - used for the message field of the logstash data (see layouts)extraDataProvider
- function (optional, defaults to put the second param of log to fields) - used to enhance the object sent to Logstash via UDP. this will be passed the log event and should return a object.log4js.configure({
appenders: {
logstash: {
type: '@log4js-node/logstashudp',
host: 'log.server',
port: 12345
}
},
categories: {
default: { appenders: ['logstash'], level: 'info' }
}
});
const logger = log4js.getLogger();
logger.info("important log message", { cheese: 'gouda', biscuits: 'hobnob' });
This will result in a JSON message being sent to log.server:12345 over UDP, with the following format:
{
'@version': '1',
'@timestamp': '2014-04-22T23:03:14.111Z',
'host': 'yourHostname',
'level': 'INFO',
'category': 'default',
'message': 'important log message',
'fields': {
'biscuits': 'hobnob',
'cheese': 'gouda'
}
}
log4js.configure({
appenders: {
logstash: {
type: '@log4js-node/logstashudp',
host: 'log.server',
port: 12345,
extraDataProvider: loggingEvent => ({
host: 'anotherHostname', // this will replace the default real host
clientIp: '1.2.3.4', // this will be added
fields: {
tag: 'myTag', // this will be added to the fields
pid: loggingEvent.pid, // this will be added to the fields
cheese: 'defaultCheese' // this will be added to the fields but will not be replaced in this example
}
})
}
},
categories: {
default: { appenders: ['logstash'], level: 'info' }
}
});
const logger = log4js.getLogger();
logger.info("important log message", { cheese: 'gouda', biscuits: 'hobnob' });
This will result in a JSON message being sent to log.server:12345 over UDP, with the following format:
{
'@version': '1',
'@timestamp': '2014-04-22T23:03:14.111Z',
'host': 'anotherHostname',
'level': 'INFO',
'category': 'default',
'message': 'important log message',
'clientIp': '1.2.3.4',
'fields': {
'cheese': 'defaultCheese',
'tag': 'myTag',
'pid': 123
}
}
So, if not using the default extraDataProvider
, you have to put the second param of the log to the fields yourself if you want.
FAQs
Logstash UDP Appender for log4js-node
We found that @log4js-node/logstashudp demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Research
Security News
Socket’s threat research team has detected six malicious npm packages typosquatting popular libraries to insert SSH backdoors.
Security News
MITRE's 2024 CWE Top 25 highlights critical software vulnerabilities like XSS, SQL Injection, and CSRF, reflecting shifts due to a refined ranking methodology.
Security News
In this segment of the Risky Business podcast, Feross Aboukhadijeh and Patrick Gray discuss the challenges of tracking malware discovered in open source softare.