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Limiting amount of logs received daily
JC_570223 created
Hello,
I configured my conf file (comm. edition) with a query for certain event id's. The output works, however, is there a way to prevent every event from creating it's own log file? For instance, create 1 large file for the date vs having 200k+ logfiles daily.
JC_570223 created
How to get access Support Portal and to download newly licensed products
nharrison created
I have just purchased the Enterprise Edition NX Log software as well as BH Support.
Can someone advise how I can get the products added to my subscription as well as access to the software downloads and support portal?
Alternatively, if a vendor support contact can contact me directly that would be great.
Thanks
nharrison created
Can we avoid to_syslog_ietf to include all fields in forwarded message
Whok1996 created
Hello everyone,
I'm new to NXLOG and I'm trying to understand how event creation and forwarding work.
I have a question about the parse_json() function or maybe the to_syslog_ietf() function, I'm not sure.
Is it possible to use parse_json($Message) then to_syslog_ietf() to forward $Message without all the fields obtained with parse_json included in the forwarded syslog event?
Here are more explanations:
I receive a syslog event and use parse_syslog_ietf()
I get $Message which is json formated, so I use parse_json($Message)
As I want to forward a specific field (let's say MsgToForward) I define $Message = $MsgToForward
Then use to_syslog_ietf to forward it through syslog.
In the forwarded event everything is ok, except that all the fields in the json (the original $Message field) are included in the forwarded message.
But I don't understand why because if I put a log_info($raw_event) after the parse_syslog and after the parse_json, $raw_event has not changed.
So is it to_parse-ietf() function which includes all the fields available? Can we avoid that?
For instance the original event is:
2020-12-29 03:05:19 INFO <7>1 2020-12-29T03:05:19.692869 admin-PC send-logs 3556 send-logs.exe - {"user":"NT AUTHORITY\\SYSTEM","name":"main","programSource":"send-logs","msgToForward":"Send-logs started"};
Then the forwarded message:
2020-12-29 03:05:19 INFO <7>1 2020-12-29T03:05:19.692869 admin-PC send-logs 3556 send-logs.exe [NXLOG@14506 MessageSourceAddress="127.0.0.1" EventReceivedTime="2020-12-29 03:05:19" SourceModuleName="inSyslog" SourceModuleType="im_udp" user="NT AUTHORITY\\SYSTEM" name="main" programSource="send-logs" msgToForward="Send-logs started"] Send-logs started
We can see the fields available in the json in the first event (user, name, programSource and msgToForward) are added in the second event. But there are useless here, so I'm trying to have this result :
2020-12-29 03:05:19 INFO <7>1 2020-12-29T03:05:19.692869 admin-PC send-logs 3556 send-logs.exe [NXLOG@14506 MessageSourceAddress="127.0.0.1" EventReceivedTime="2020-12-29 03:05:19" SourceModuleName="inSyslog" SourceModuleType="im_udp"] Send-logs started
Is there a way to avoid parse_json or to_syslog_ietf to add these fields? (The number of fields and their names are not always the same.)
Or should I just not use parse_json and use regexp instead to get the value of MsgToForward?
My configuration if needed.
<Input inSyslog>
Module im_udp
Host 127.0.0.1
Port 514
</Input>
<Output outSyslog2>
Module om_udp
Host 127.0.0.1
Port 1514
Exec parse_syslog_ietf(); parse_json($Message); $Message = $MsgToForward; to_syslog_ietf();
</Output>
<Route Syslog>
Path inSyslog => outSyslog2
</Route>
Any help is welcomed. Thank you :)
Whok.
Whok1996 created
NXLOG Use Case
bturnbough created
HI Everyone,
I'm evaluating various Log centralization / log analysis tools for our enterprise. I've been looking into graylog for some time and have gotten to the point where I'm comfortable in it. I just started to look into NXLOG and I'm wondering which offering to choose.
From what I can see, NXLog is more capable than graylog as far as log collection goes.
Can someone help me understand this better? I see a lot of setups using BOTH, and I'm not really sure I want to use two systems --- we're not all that complex here to warrant that kind of setup.
Thank you!!!
Brad
bturnbough created
protecting passwords stored in nxlog config
EH_272573 created
How can I protect passwords that are stored in the nxlog config to access different systems. I am using the sql connector with a local sql account and it requires the username and password to be inputed into the config.
EH_272573 created
Modules for Citrix Access Gateway & Citrix NetScaler
BC_471242 created
Do we have NXLog modules to process Citrix Access Gateway & Citrix NetScaler logs?
BC_471242 created
How to output Syslog Dell Firewall Logs to a local file directory
FN_379889 created
I am looking to output syslog logs from Dell Firewall into a local directory on my windows box and I am getting error message as below:
===
2020-12-11 07:01:21 WARNING not starting unused module syslogs
2020-12-11 07:01:21 INFO nxlog-ce-2.10.2150 started
2020-12-11 07:01:21 ERROR failed to open tmp/output; The system cannot find the path specified.
=====
I do not understand where i can reference the "tmp/output" within the "C:\Program Files (x86)\nxlog*" or how i can point the output file to another directory.
This is a windows box and i will like the files to be written to a folder path under C directory.
Can anyone help?
FN_379889 created
Windows Event Forwarding
slaterun1234 created
I would like to forward Windows Security Events into Azure's Log Analytics using NXLog instead of the Microsoft Monitoring Agent (MMA).
Does anyone been able to do this? If so, would you care to share your config file setup?
slaterun1234 created
Regex/Variable
SP_895311 created
Hi,
I'm currently using nxlog to forward RADIUS messages via syslog to my firewall. However, it has recently started complaining that the packets are too big, and so fragmentation is occurring which it doesn't like.
The temporary fix was to force the packets to cut at 1450 bytes, and this is my current 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
<Extension _xml>
Module xm_xml
</Extension>
<Extension _charconv>
Module xm_charconv
AutodetectCharsets iso8859-2, utf-8, utf-16, utf-32
</Extension>
<Extension _exec>
Module xm_exec
</Extension>
<Extension _fileop>
Module xm_fileop
# Check the size of our log file hourly, rotate if larger than 5MB
<Schedule>
Every 1 hour
Exec if (file_exists('%LOGFILE%') and \
(file_size('%LOGFILE%') >= 5M)) \
file_cycle('%LOGFILE%', 8);
</Schedule>
# Rotate our log file every week on Sunday at midnight
<Schedule>
When @weekly
Exec if file_exists('%LOGFILE%') file_cycle('%LOGFILE%', 8);
</Schedule>
</Extension>
<Input NPS>
Module im_file
File "C:\Windows\System32\LogFiles\IN*.log"
InputType LineBased
SavePos TRUE
ReadFromLast TRUE
<Exec>
# Discard everything that doesn't seem to be an xml event
if $raw_event !~ /^<Event>/ drop();
# Filter to only events containing all required data (type, username and ip)
if $raw_event !~ /(Type\sdata_type="0">)(\d{1,2})(<\/Acct)(.+)(Name\sdata_type="1">)([a-zA-Z0-9\$\._-]{3,15})(.*)(<\/User)(.+)(Address\sdata_type="3">)([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})(<\/Framed)/ drop ();
# Truncates event to 1400 bytes due to MTU limits
$raw_event = substr($raw_event, 0, 1450);
# Reduces event string to just required data (type, username and ip)
# Parse xml
parse_xml();
</Exec>
</Input>
<Output Firewall>
Module om_udp
# Put your Firewal Management interface IP address
# Don't change port or protocol (should be UDP 514 or TCP 6514)
Host 192.168.1.1
Port 514
</Output>
<Output SyslogServer>
# Put your Syslog Server IP address and port
# Allows monitoring of messages being sent to firewall
Module om_udp
Host 192.168.1.10
Port 514
</Output>
<Route 1>
Path NPS => Firewall
</Route>
<Route 2>
Path NPS => SyslogServer
</Route>
However, I'd prefer a neater solution, rather than just chopping the end off the packet. The only parts of the packet I'm interested in forwarding are:
Event Regex: <Acct-Status-Type\sdata_type="0">1</Acct-Status-Type>{1}
Username Regex: <User-Name\sdata_type="1">([a-zA-Z0-9\._-]+)</User-Name>
Address Regex: <Framed-IP-Address\sdata_type="3">([0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3})</Framed-IP-Address>
Is there a way to extract just those bits and parse that to the output?
Apologies if it's obvious, but I don't really understand how nxlog works! Give me powershell and I'm happy....
Thanks,
Stephen
SP_895311 created
Send Username of windows event
IB_956097 created
Hi,
i'm forwarding windows event to SIEM with nxlog
i'm trying to send to SIEM the username of logged user (the user of event), without success
it's possible to send username ?
thanks you
IB_956097 created
Adiscon Loganalyzer compatibility
IB_956097 created
Hi All,
I'm trying solution to forward windows evento log to centralized server (Adiscon Loganalyzer, if you know free alternative please help me)
it's possible to convert raw data or filter data in "messages" to set it in respective fields?
For example, in SIEM (loganalyzer), i have two views (syslog and eventlog)
syslog view is all ok
eventlog view has blank field :
Eventlog Type
Event Source
Event ID
Event User
It's possible to filter message and write it to respective blank fields?
i have this basic nxlog.conf configuration
<Extension _syslog>
Module xm_syslog
</Extension>
<Input eventlog>
Module im_msvistalog
</Input>
<Output out>
Module om_tcp
Host 10.0.2.50
Port 514
Exec to_syslog_bsd();
</Output>
<Route eventlog_to_out>
Path eventlog => out
</Route>
OUTPUT (excuse me for the language) :
� stato tentato un accesso utilizzando credenziali esplicite. Soggetto: #011ID sicurezza:#011#011S-1-5-21-2102024564-1642127871-3539904672-1001 #011Nome account:#011#011prova #011Dominio account:#011#011PCNAME #011ID accesso:#011#0110x1E125 #011GUID accesso:#011#011{00000000-0000-0000-0000-000000000000} Account di cui sono state utilizzate le credenziali: #011Nome account:#011#011admin #011Dominio account:#011#011PCNAME #011GUID accesso:#011#011{00000000-0000-0000-0000-000000000000} Server di destinazione: #011Nome server di destinazione:#011nasbackup #011Informazioni aggiuntive:#011nasbackup Informazioni sul processo: #011ID processo:#011#0110x4 #011Nome processo:#011#011 Informazioni di rete: #011Indirizzo di rete:#01110.0.2.128More Information #011Porta:#011#011#011445 Questo evento viene generato quando un processo tenta di far accedere un account specificando esplicitamente le credenziali dell'account. Generalmente si verifica in configurazioni di tipo batch, ad esempio attività pianificate, oppure quando si utilizza il comando RUNAS.#015
IB_956097 created
How to collect more than one log per input module without using a wildcard
casey1234 created
Hi!
We have some logs that we would like for NXLog to monitor.
The logs are located in a folder where lots of logs also reside.
For that reason we don't wish to use a wildcard, because many of the logs we don't care to monitor.
How can we in a single input module monitor three files, say file1, file2, and file3?
The information found here indicates that you can use multiple File directives but when I tried it didn't work.
Example:
<Input inLog>
Module im_file
File "/var/log/file1.log"
File "/var/log/file2.log"
File "/var/log/file3.log"
<Exec>
$logtime = strptime($raw_event, '%Y-%m-%d %H:%M:%S');
$timestamp = strftime($logtime, '%s');
$server = hostname_fqdn();
if $raw_event =~ /\[INFO\]/ $log_type = 'INFO';
if $raw_event =~ /\[WARNING\]/ $log_type = 'WARNING';
if $raw_event =~ /\[ERROR\]/ $log_type = 'ERROR';
</Exec>
</Input>
Do I need three different input modules or can I use just one?
Thanks in advance!
casey1234 created
where to find the generic nxlog-5.1.6303_rpm_x86_64.rpm
SA_572107 created
hi guys,
Does anyone knows where to find the nxlog-5.1.6303_rpm_x86_64.rpm i am planning to install it on the oracle linux 7 and the epel of oracle linux 7 does not have the rpm for the nxlog.
any help is greatly appreciated.
Tim
SA_572107 created
Log Forwarding to CloudWatch
MG_649952 created
Hi,
I have found a number of items on collecting logs from CloudWatch, but none on forwarding events to CloudWatch? I think we would need those App Keys we generate etc.
Anyone have any information on this or better yet - a CloudWatch Forwarder Template.
My thanks,
MG
MG_649952 created
For im_wseventing , fields Task and Category seemed to be messed up.
TD_609646 created
Take for example event 4624, with output as JSON to kafka, there is a JSON field in im_msvistalog:
"Category":"Logon",
...
"Task":12544,
Now, looking at an event 4624 collected via im_wseventing, the JSON looks like this:
"Task":"Logon"
Note: Field Category is missing! As "Task" contains the category, in reality, the Task is missing here..
Please fix that for the WEC collector.
Best regards
Theo
TD_609646 created
Missing parent/creator process id for event 4688 with im_wseventing
TD_609646 created
For event 4688 I can only extract the parent process id out of the message body but there is no field in JSON containing only the parent process id. In im_msvistalog this field is properly added to JSON. Example in im_wseventing:
{
"EventTime":"2020-11-23 00:25:57",
"Hostname":"...",
"Keywords":-9214364837600034816,
"EventType":"AUDIT_SUCCESS",
"SeverityValue":2,
"Severity":"INFO",
"EventID":4688,
"SourceName":"Microsoft-Windows-Security-Auditing",
"ProviderGuid":"{ANONYMIZED}",
"Version":2,
"Task":13312,
"OpcodeValue":0,
"RecordNumber":14699970,
"ProcessID":4,
"ThreadID":7924,
"Channel":"Security",
"Message":"A new process has been created.\r\n\r\nCreator Subject:\r\n\tSecurity ID:\t\tS-1-5-18\r\n\tAccount Name:\t\ANON$\r\n\tAccount Domain:\t\ANON\r\n\tLogon ID:\t\tANON\r\n\r\nTarget Subject:\r\n\tSecurity ID:\t\tS-1-0-0\r\n\tAccount Name:\t\t-\r\n\tAccount Domain:\t\t-\r\n\tLogon ID:\t\t0x0\r\n\r\nProcess Information:\r\n\tNew Process ID:\t\t0x114c\r\n\tNew Process Name:\tC:\\Windows\\System32\\cmd.exe\r\n\tToken Elevation Type:\tTokenElevationTypeDefault (1)\r\n\tCreator Process ID:\t0x1f8c\r\n\tProcess Command Line:\t\r\n\r\nToken Elevation Type indicates the type of token that was assigned to the new process in accordance with User Account Control policy.\r\n\r\nType 1 is a full token with no privileges removed or groups disabled. A full token is only used if User Account Control is disabled or if the user is the built-in Administrator account or a service account.\r\n\r\nType 2 is an elevated token with no privileges removed or groups disabled. An elevated token is used when User Account Control is enabled and the user chooses to start the program using Run as administrator. An elevated token is also used when an application is configured to always require administrative privilege or to always require maximum privilege, and the user is a member of the Administrators group.\r\n\r\nType 3 is a limited token with administrative privileges removed and administrative groups disabled. The limited token is used when User Account Control is enabled, the application does not require administrative privilege, and the user does not choose to start the program using Run as administrator.",
"Category":"Process Creation",
"Opcode":"Info",
"SubjectUserSid":"ANON",
"SubjectUserName":"ANON",
"SubjectDomainName":"ANON",
"SubjectLogonId":"ANON",
"NewProcessId":"0x114c",
"NewProcessName":"C:\\Windows\\System32\\cmd.exe",
"TokenElevationType":"%%1936",
"TargetUserSid":"S-1-0-0",
"TargetUserName":"-",
"TargetDomainName":"-",
"TargetLogonId":"0x0",
"EventReceivedTime":"2020-11-23 02:13:00",
"SourceModuleName":"security_event_collect",
"SourceModuleType":"im_msvistalog"}
Please add the missing field.
Best regards
Theo
TD_609646 created
Windows Server 2016 NXLOG service keep on stopping every few days
TI_825837 created
When I check the Windows "Services", it is running, but the logs are not transferred.
After restarting the service, it works fine for a few days. After a few days, the logs will not be transferred.
I think that "★" is because the transfer destination server is temporarily offline.
If I can't connect even once, can I connect after that?
2020-11-12 14:41:17 INFOnxlog-ce-2.10.2150 has started
★ 2020-11-12 14:41:17 Error 10.17.140.209 Failed to connect to udp socket: 514; An attempt was made to perform a socket operation on an unreachable host.
2020-11-2009: 56: 06 Warning nxlog service outage
2020-11-2009: 56: 06 Warning nxlog-ce received end request signal and ended ...
2020-11-20 09:56:08 INFOnxlog-ce-2.10.2150 has started
TI_825837 created
Specify "Template Type" selection seems to be missing.
RR_719059 created
Hello everyone. I'm new to NXLog but I'm glad to be here and to learn.
We have the Enterprise edition and I'm trying to work out how the template structure works. The user doc (135.3. Creating Templates) references the image below.
However when I try and create a template, I don't have the label or drop down to select MASTER / SUB as a template type as shown in the screenshot. -->
Missing Template Option
Is there something in the config to turn that function on and off that I might be missing? For reference, we're using version 5.5.5398 of the NXLog Manager via Docker image.
RR_719059 created
Using PowerShell to fetch logs and emptying monitored directory at specified intervals
PT_537256 created
I'm looking at a slightly unusual application logging which has turned out quite challenging to handle with NXLog, as is, and for that I've been experimenting of running PS scripts using NXLog.
In principle, I'd like to know if it is possible to build the following scenario using NXLog Enterprise agent.
Running of PS script (using NXLog) to fetch log files at interval from variable directories and putting them into another (a copy of logs not older than 1 hour, PS script would manage this, but needs to be invoked by NXLog agent).
Reading selected events from the fetched logs and dispatching them to another system (note, this is completed in another scenario already so I know this would work).
Deleting of all logs from the import directory after they have been read. This could be managed with the xm_fileop, I believe.
I have been experimenting of running PS scripts, unsuccesfully so far, but I'm going through the docs and examples to understand how would one execute a (any) script using the NXLog agent.
Any advice will be highly appreciated.
PT_537256 created
Trying to parse Tomcat logs using nxlog, getting error
LS_140907 created
Hi team,
Can someone please help me with parsing the below tomcat log (contains multiple lines) ?
**tomcat log snippet: **
19-Aug-2020 12:39:51.412 INFO [Catalina-utility-2] org.apache.catalina.startup.HostConfig.undeploy Undeploying context [/front]
19-Aug-2020 12:40:31.462 INFO [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [D:\Tomcat\webapps\front]
19-Aug-2020 12:40:32.813 SEVERE [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployDirectory Error deploying web application directory [D:\Tomcat\webapps\front]
java.lang.IllegalStateException: Error starting child
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:720)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1133)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1866)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
I am trying to use the same example (url below) from nxlog official guide, but didn't help.
https://nxlog.co/documentation/nxlog-user-guide/apache-tomcat.html
**Please see my conf file content below: **
define REGEX /(?x)^(?<EventTime>\d{2}-\d{3}-\d{4}\ \d{2}:\d{2}:\d{2}).\d{3}\
(?<Severity>\S+)\ [(?<Class>\S+)]\ (?<Message>[\s\S]+)/
Module xm_multiline
HeaderLine %REGEX%
Module im_file
File 'D:\Tomcat\logs\catalina.*.log'
SavePos TRUE
InputType multiline
Exec if $raw_event =~ %REGEX% $EventTime = parsedate($EventTime);
log_info($raw_event);
log_info($Message);
Exec $Message = 'TOMCAT_Catalina ' + $raw_event ; $SyslogFacilityValue = 1; $SyslogSeverityValue=5;
**And getting below errors: **
2020-11-13 14:25:54 ERROR failed to compile regular expression '(?x)^(?<EventTime>\d{2}-\d{3}-\d{4}\ \d{2}:\d{2}:\d{2}).\d{3}\ (?<Severity>\S+)\ [(?<Class>\S+)]\ (?<Message>[\s\S]+)', error at position 136: unmatched parentheses
2020-11-13 14:25:54 ERROR invalid expression in 'HeaderLine' at C:\Program Files (x86)\nxlog\conf\custom\tomcatCatalina.conf:7
2020-11-13 14:25:54 ERROR Invalid InputType 'multiline' at C:\Program Files (x86)\nxlog\conf\custom\tomcatCatalina.conf:19
2020-11-13 14:25:54 ERROR module 'tomcat_catalina_log' has configuration errors, not adding to route '4' at C:\Program Files (x86)\nxlog\conf\custom\tomcatCatalina.conf:53
2020-11-13 14:25:54 ERROR route 4 is not functional without input modules, ignored at C:\Program Files (x86)\nxlog\conf\custom\tomcatCatalina.conf:53
Please help.
Thanks in advance!
LS_140907 created