Hello guys, please help to split MESSAGE to seperate events with syslog_bsd headers. config example: ``` Module xm_csv Fields DisplayName, EmailAddress, Department, Title, Description, SamAccountName,EmployeeNumber,PasswordLastSet,LastLogonDate,enabled FieldTypes string,string,string,string,string,string,string,string,string,string Exec $msg1 = ($SamAccountName + " | -DisplayName | " + $DisplayName); Exec $msg2 = ($SamAccountName + " | -EmailAddress | " + $EmailAddress); Exec $msg3 = ($SamAccountName + " | -Department | " + $Department); Exec $msg4 = ($SamAccountName + " | -Title | " + $Title); Exec $msg5 = ($SamAccountName + " | -Description | " + $Description); Exec $msg6 = ($SamAccountName + " | -SamAccountName | " + $SamAccountName); Exec $msg7 = ($SamAccountName + " | -EmployeeNumber | " + $EmployeeNumber); Exec $msg8 = ($SamAccountName + " | -PasswordLastSet | " + $PasswordLastSet); Exec $msg9 = ($SamAccountName + " | -LastLogonDate | " + $LastLogonDate); Exec $msg10 = ($SamAccountName + " | -enabled | " + $enabled); Exec $raw_event = $msg1 + "\n" + $msg2 + "\n" + $msg3 + "\n" + $msg4 + "\n" + $msg5 + "\n" + $msg6 + "\n" + $msg7 + "\n" + $msg8 + "\n" + $msg9 + "\n" + $msg10 + "\n"; ``` So the ouput like: ``` Administrator | -DisplayName | Administrator | -EmailAddress | admin@gmail.com Administrator | -Department | Administrator | -Title | Administrator | -Description | Built-in account for administering the computer/domain Administrator | -SamAccountName | Administrator Administrator | -EmployeeNumber | Administrator | -PasswordLastSet | 2/21/2019 1:57:37 PM Administrator | -LastLogonDate | 2/21/2019 2:08:51 PM Administrator | -enabled | True ``` How to add syslog header TIMESTAMP HOSTNAME TAG[PID]: before each line and send to syslog as seperate messages? If I use to_syslog_bsd(); lines merges into one event

Hi everyone!

The new version NXLog works well. But recently, I again saw an error during the rotation of log.

Service does not work. I reinstalled it and everything is ok.

Thanks everyone!

2019-08-18 00:00:00 ERROR failed to check whether file 'C:\nxlog\data\nxlog.log.2' exists; Access is denied. 
2019-08-19 00:00:00 ERROR Scheduled execution failed; procedure 'file_cycle' failed at line 27, character 57 in C:\nxlog\conf\nxlog.conf. statement execution has been aborted; ### ASSERTION FAILED at line 76 in filepath.c/nx_filepath_find_all_paths(): "path_decomposed->nelts > 0" ###
2019-08-20 00:00:00 ERROR Scheduled execution failed; procedure 'file_cycle' failed at line 27, character 57 in C:\nxlog\conf\nxlog.conf. statement execution has been aborted; ### ASSERTION FAILED at line 76 in filepath.c/nx_filepath_find_all_paths(): "path_decomposed->nelts > 0" ###
2019-08-21 00:00:00 ERROR Scheduled execution failed; procedure 'file_cycle' failed at line 27, character 57 in C:\nxlog\conf\nxlog.conf. statement execution has been aborted; ### ASSERTION FAILED at line 76 in filepath.c/nx_filepath_find_all_paths(): "path_decomposed->nelts > 0" ###

Hi, I am trying to read logs (csv format) from Service Now and send it to ELK stack. I need some help in writing the input module, so that I can properly send the logs to ELK stack. My input file contains 5 fields, but field3 has multiline input. I tried many methods and it doesnot work as per expectations. Can someone please help in writing proper input/output module to my stack.

Input file sample as follows:

Created,Level,Message,Source,Created by 7/22/2019 3:00,Warning,"org.mozilla.javascript.EcmaError: Cannot convert null to an object. Caused by error in sys_script.914d69890a0a3c1101310dab6c2ebf01.script at line 1

==> 1: geamBlockCI(); 2: function geamBlockCI() { 3: var user = gs.getUser(); 4: //gs.log('**** 1 User'+ user,'Test'); ",Evaluator,admin 7/22/2019 3:00,Warning,"org.mozilla.javascript.EcmaError: Cannot convert null to an object. Caused by error in sys_script.914d69890a0a3c1101310dab6c2ebf01.script at line 1

==> 1: geamBlockCI(); 2: function geamBlockCI() { 3: var user = gs.getUser(); 4: //gs.log('**** 1 User'+ user,'Test'); ",Evaluator,admin

Hi,

I am trying to get an alert on mail when someone changes the syslog IP, i am using below config,

<Input file> Module im_file File "/opt/nxlog/var/log/*.log" <Exec> if $raw_event =~ /Syslog Server IP was changed from/ { exec_async("/bin/sh", "-c", 'echo "' + $Hostname + $raw_event + '"|/usr/bin/mailx -a "Content-Type: text/plain; charset=UTF-8" -s "ALERT" ' + 'user@domaincom'); } </Exec> </Input>

everytime when i see "Syslog Server IP was changed from" on log file i am getting "RROR subprocess 'xxxxx' returned a non-zero exit value of 1" on nxlog log file.

i am on CentOS 7 .... can anyone help..

BR//SAJESH

Trying to implement nxlog on a Windows 2012 R2 server and the log data appears to forward to Graylog3, however in a review of the data no messages are recieved. Using the same nxlog.conf file from a working 2008 server we get the same result.

Hello. We plan on using the im_file module to ingest W3C IIS logs. We will use the command script provided in the user manual in section 69.7 as we have many IIS servers and the logs are not all in the same place. We use NXLog Manager to manage all of our agents. When attempting to create the module for the agent within NXLog Manager, we are being forced to input something for the 'File' parameter. Yet when we do the 'include_stdout' directive as shown in the manual, that creates the 'File' parameter based on what the script finds so we don't want the NXLog Manager defining that parameter. How do we tell NXLog Manager to skip that parameter? We don't want to have to manually update log4ensics.conf on each of these servers.

Thank you.

Hi All,

Is there a way to collect Netflow logs to a file and export them in Syslog format. Trying to get a working solution to collect logs from the sd-wan device(ipfix/netflow) and forward them to our SIEM which only accepts Syslog format. here is the conf file ..let me know what im doing wrong ? <Extension netflow> Module xm_netflow </Extension>

<Extension json> Module xm_json </Extension>

<Input netflowIn1> Module im_udp Host Port 2055 InputType netflow </Input>

<Output Out> Module om_file File "c:\temp\syslog.txt" Exec to_json(); </Output>

<Route nf> Path netflowIn1 => Out </Route>

Hello, I have a WEC server receiving the logs form my network computers, in this server I have the NXLog community edition to forward this logs, but in the exabeam analytics does not see logs from the machines the login and log out, I feel that the nxlogs does not forward all events, Do I need to use other version of client or what else should I do to verify if is send the full log?

Regards

Ben

Hi,

I'd like to know if i can open tickets support using the nxlog community edition or it's just for the enterprise edition users.

Thanks

Hello,

I would like to ask you if there is option for nxlog community edition to disable TLS (module im_ssl) renegotiation for nxlog community edition or if the renegotiations are compliant with RFC 5746?

Thanks for letting me know.

Kind regards,

Marek

Hello! I an having trouble finding documentation on how/where I would alter the config files to forward all windows logs. I can setup the config to forward logs, which was simple, but specifying which logs to forward is where I am stuck

Hello, we need to create a customer user who can have access to the nxlog manager to see his agents, but I would like the customer user to see nothing of other customer users. Is that even possible?

Thank you Antonio

Hey all, I want to be able to capture the event IDs of windows events in my SIEM but currently they don't come through and I'm not sure what changes need to be made to make them come through. Below are my config files and an example of how they come in. Any ideas? Thanks in advance How events come in: 10 Jul 2019 16:57:42.364Jul 10 12:57:40 FILESVR******** Service_Control_Manager[532]: The Microsoft Policy Platform Local Authority service entered the running state. 10 Jul 2019 16:57:43.385Jul 10 12:57:41 FILESVR******** Service_Control_Manager[532]: The Microsoft Policy Platform Processor service entered the running state. Config: Panic Soft #NoFreeOnExit TRUE define ROOT C:\Program Files (x86)\nxlog define CERTDIR %ROOT%\cert define CONFDIR %ROOT%\conf define LOGDIR %ROOT%\data define LOGFILE %LOGDIR%\nxlog.log LogFile %LOGFILE% Moduledir %ROOT%\modules CacheDir %ROOT%\data Pidfile %ROOT%\data\nxlog.pid SpoolDir %ROOT%\data Module xm_syslog Module xm_charconv AutodetectCharsets iso8859-2, utf-8, utf-16, utf-32 Module xm_exec Module xm_fileop # Check the size of our log file hourly, rotate if larger than 5MB Every 1 hour Exec if (file_exists('%LOGFILE%') and \ (file_size('%LOGFILE%') >= 5M)) \ file_cycle('%LOGFILE%', 8); # Rotate our log file every week on Sunday at midnight When @weekly Exec if file_exists('%LOGFILE%') file_cycle('%LOGFILE%', 8); Module im_msvistalog * * * Module om_tcp Host ******** Port ******** Exec to_syslog_bsd(); Path eventlog => tcp

Hello:

After spending several months trying to understand rsyslog interstellar configuration -- I am thinking of nxlog (enterprise) for a larger deployment in the coming months. Currently I am messing around with the community edition. while the documentation is nice --- some of example for basic things are a little short on info. Google searches has been a little frustrating as it focuses on Windows alerting which is not what we need.

In our environment we have LTE based devices that connect to our VPN. Essentially these are weather stations for the agricultural industry. The devices are capable of sending itef / bsd style syslog messages to a central server. We are looking for a solution to centrally receive these logs and based on the message content reformat and re forward the messages to something like graylog.

For now I am trying to standardize on a config that would allow me to receive bsd style syslog messages over UDP (plain text) and send the messages to a file. I am running nxlog on Linux -- Centos 7.

nxlog-ce-2.10.2150
usage: nxlog [-h/help] [-c/conf conffile] [-f] [-s/stop] [-v/verify]
[-h] print help
[-f] run in foreground, do not daemonize
[-c conffile] specify an alternate config file
[-r] reload configuration of a running instance
[-s] send stop signal to a running nxlog
[-v] verify configuration file syntax

CentOS Linux release 7.6.1810 (Core)


Requirement:

1) All of the weather stations are in the 10.200.0.0/16 subnets.
2) Dump messages from each weather station into a single file --- in the example below (which doesnt work) I was trying to push the messages into agmon-log
3) If the message contains the words "SENSORFAIL" send only those messages to another file ag-sensor-fail.log
4) add a carriage return / lf after each message so the log is formatted nicely.


Nice to have
- Be able to place the messages from each sensor into an individual file based on some patter of their IP address for example 10.200.16.25 could be agmon-16-25.log
- richer content editing controls --- if the weather station is unable to get a wind reading it sends "NO WINDINFO" or "BAD WINDINFO" message. i would like to kick off a python process if this message is received --- while logging the message to a file.
- If the message contains the words "TEMPDATA=/regexpattern/" would love to log the data to a MARIADB database. Not sure how to look for the regex pattern and if backtick or goup matches apply

Can someone please post some snippets or places to look. Brand new to nxlog. The manual is great but needs better more complete examples. Not sure that nxlog is a fit for this and I would like some help to understand if this is the case.

Im really trying to wrap my head around inputs and routes so that I can direct messages from specific host / based on content to a distinct location. Also trying to determine how vibrant the nxlog community is along with support. Made the mistake of investing in rsyslog --- didnt work out.








########################################
# Global directives #
########################################
User nxlog
Group nxlog

LogFile /var/log/nxlog/nxlog.log
LogLevel INFO

########################################
# Modules #
########################################
<Extension _syslog>
Module xm_syslog
</Extension>

<Input in1>
Module im_udp
Port 514
Exec parse_syslog_bsd();
</Input>

<Input in2>
Module im_tcp
Port 514
</Input>

<Input in5>
Module im_udp
Host 10.200.0.0/16;
Port 514
Exec parse_syslog_bsd();
</Input>



<Output fileout1>
Module om_file
File "/var/log/logmsg.txt"
Exec if $Message =~ /error/ $SeverityValue = syslog_severity_value("error");
Exec to_syslog_bsd();
</Output>

<Output fileout2>
Module om_file
File "/var/log/logmsg2.txt"
</Output>


<Output fileout5>
Module om_file
File "/var/log/agmon-log.txt"
Exec to_syslog_bsd();
</Output>



########################################
# Routes #
########################################
<Route 1>
Path in1 => fileout1
</Route>

<Route tcproute>
Path in2 => fileout2
</Route>

<Route 5>
Path in5 => fileout5
</Route>

Hi all, searching on internet I found that by defaukt nxlog has a buffer of 65000 bytes, but it seems it's not working in my environment.

I'm using nxlog CE 2.10 (in a Windows 2012 environment) and Graylog 2.5.1 In my nxlog conf file I have 2 inputs (im_msvistalog, im_file) and 1 output (om_udp). I tried to stop the input in Graylog and start it after 1 hour, but logs collected by event viewer during that our were not sent to Graylog.

How can I configure nxlog in order to keep logs in memory while Graylog is offline and send them when Graylog comes back online?

Thank you, Marco.

Hello, this is my conf (without general directives) ``` Module xm_multiline FixedLineCount 2 Exec $raw_event = $raw_event + replace($raw_event, "\r\n", " "); Module im_file File "C:\\temp\\in.txt" InputType ml1 SavePos FALSE ReadFromLast FALSE Module om_file File "C:\\temp\\out.txt" Path in1 => out1 ``` I need merge two lines from in.txt to single line separated with space into out.txt. But this does not work.

Hi,

I am trying to add a custom tag message in front of the logs similar to rsyslog custom tagging, but couldn't find a module on tagging logs. The solution in te previous forum on tagging didn't work out.

https://nxlog.co/question/4006/nxlog-logstash-using-custom-tags

Solution in that forum : Exec $tag = 'hl7out';

Does custom tagging works for AIX ? Please provide a solution for it to reflect it in forwarded logs.

Hi everyone, I would like to add my custom field to log at first place in log. But if i added **Exec $senderversion = "3.5.563";** the field will be at last place in log. is there some way to add a field to the first place ? My configuration and log sample are below. Thanks for any answer. Module xm_json Module im_msvistalog Exec delete($EventTime); Exec delete($EventReceivedTime); Exec delete($SourceModuleName); Exec delete($SourceModuleType); Exec $senderversion = "3.5.563"; Module om_tcp Host 198.19.254.112 Port 514 Exec to_json(); Path eventlog => tcp_event My logs now looks like this: > {"Hostname":"win_template.nxlog.matej","Keywords":-9214364837600034816,"EventType":"AUDIT_SUCCESS","SeverityValue":2,"Severity":"INFO","EventID":4634,"SourceName":"Microsoft-Windows-Security-Auditing","ProviderGuid":"{54849625-5478-4994-A5BA-3E3B0328C30D}","Version":0,"Task":12545,"OpcodeValue":0,"RecordNumber":214127,"ProcessID":644,"ThreadID":3508,"Channel":"Security","Message":"An account was logged off.\r\n\r\nSubject:\r\n\tSecurity ID:\t\tS-1-5-18\r\n\tAccount Name:\t\tWIN_TEMPLATE$\r\n\tAccount Domain:\t\tNXLOG\r\n\tLogon ID:\t\t0x241DC39F\r\n\r\nLogon Type:\t\t\t3\r\n\r\nThis event is generated when a logon session is destroyed. It may be positively correlated with a logon event using the Logon ID value. Logon IDs are only unique between reboots on the same computer.","Category":"Logoff","Opcode":"Info","TargetUserSid":"S-1-5-18","TargetUserName":"WIN_TEMPLATE$","TargetDomainName":"NXLOG","TargetLogonId":"0x241dc39f","LogonType":"3",**"senderversion":"3.5.563"**} I would like to make the log look like this: > {**"senderversion":"3.5.563",**"Hostname":"win_template.nxlog.matej","Keywords":-9214364837600034816,"EventType":"AUDIT_SUCCESS","SeverityValue":2,"Severity":"INFO","EventID":4634,"SourceName":"Microsoft-Windows-Security-Auditing","ProviderGuid":"{54849625-5478-4994-A5BA-3E3B0328C30D}","Version":0,"Task":12545,"OpcodeValue":0,"RecordNumber":214127,"ProcessID":644,"ThreadID":3508,"Channel":"Security","Message":"An account was logged off.\r\n\r\nSubject:\r\n\tSecurity ID:\t\tS-1-5-18\r\n\tAccount Name:\t\tWIN_TEMPLATE$\r\n\tAccount Domain:\t\tNXLOG\r\n\tLogon ID:\t\t0x241DC39F\r\n\r\nLogon Type:\t\t\t3\r\n\r\nThis event is generated when a logon session is destroyed. It may be positively correlated with a logon event using the Logon ID value. Logon IDs are only unique between reboots on the same computer.","Category":"Logoff","Opcode":"Info","TargetUserSid":"S-1-5-18","TargetUserName":"WIN_TEMPLATE$","TargetDomainName":"NXLOG","TargetLogonId":"0x241dc39f","LogonType":"3"}

Hi, I need to know if there is any way to receive an event when Nxlog Windows service is stopped. How can I obtain such notification if I don´t have the service working anymore? Is there a solution to audit this case? Thanks!

On a Windows machine, I'm currently trying to create a custom field named client_ip and grab the IP address of the sending client. This works, but when I switch IPs, nxlog keeps sending the old stale IP, not the new IP.

Exec $client_ip = string(host_ip());

But, if I restart the nxlog service on the Windows machine, it starts returning the new correct IP. I don't want to have to restart the service.

How can I make nxlog always resolve and return the current ip?

Or is there another way to grab the IP address and assign that to a custom field?