Compare Array of IPs with rsyslog
There is a list of IPs (their quantity is changing every few minutes) stored in a log-file. The logfile only contains unique IPs (sort -u):
IP-Pool.log [Example]:
192.168.1.1
192.168.1.2
10.1.1.0
.
.
I would like to filter occuring connection events with rsyslog and sort them by:
- Events where $msg contains one IP of Array[IP-Pool-List]
- Events where $msg doesn't contain any IP of Array[IP-Pool-List]
Therefore I would have to put the IPs into an array so they can be compared but I haven't found a way to do so.
if $msg contains 'connection-event-id' then {
if $msg contains 'Array[IP-Pool-List] then {
-/var/log/event_contains_ip.log
STOP
}
else{
-/var/log/event_doesnt_contain_ip.log
STOP
}
}
Would I also have to restart the rsyslogd service in order to refresh the array [IP-Pool-List], since the file is changing every few minutes ?
Is there a way to solve this with rsyslog, or is there an easier/better way to do this ?
EDIT
I used crontab and inotifywait to keep the IP-Pool-File up to date.
@reboot inotifywait -q -m -e modify /var/log/client-ips.log |
while read -r filename events; do sort -u /var/log/client-ips.log
-o /var/log/ips-unique.log ;done
I also asked this question via mail to the "rsyslog-community" their contact mail is listed at the bottom of the rsyslog documentation (https://lists.adiscon.net/mailman/listinfo/rsyslog)
They gave me the advise to use "Lookup-Tables" to solve this. Currently reading how to use them correctly. Since I am a slow learner, this should take a while.
EDIT 2
A new plan is starting to form:
- To get Lookup-Table going, I need to create a JSON-File, which
contains the values I am going to build my filter with - Update the JSON File with "reload_lookup_table" or "JQ", whenever a new IP is added to the
IP-Pool-List. - Use RSYSLOG Lookup-Table to filter for the given IPs and split the
results into two seperate log files | Match.log | NoMatch.log
Hope it'll work this way.
Happy New Year
peacemaker
arrays json jq lookup-tables rsyslog
asked Jan 3 at 12:34
peacemakerpeacemaker
368
add a comment |
There is a list of IPs (their quantity is changing every few minutes) stored in a log-file. The logfile only contains unique IPs (sort -u):
IP-Pool.log [Example]:
192.168.1.1
192.168.1.2
10.1.1.0
.
.
I would like to filter occuring connection events with rsyslog and sort them by:
- Events where $msg contains one IP of Array[IP-Pool-List]
- Events where $msg doesn't contain any IP of Array[IP-Pool-List]
Therefore I would have to put the IPs into an array so they can be compared but I haven't found a way to do so.
if $msg contains 'connection-event-id' then {
if $msg contains 'Array[IP-Pool-List] then {
-/var/log/event_contains_ip.log
STOP
}
else{
-/var/log/event_doesnt_contain_ip.log
STOP
}
}
Would I also have to restart the rsyslogd service in order to refresh the array [IP-Pool-List], since the file is changing every few minutes ?
Is there a way to solve this with rsyslog, or is there an easier/better way to do this ?
EDIT
I used crontab and inotifywait to keep the IP-Pool-File up to date.
@reboot inotifywait -q -m -e modify /var/log/client-ips.log |
while read -r filename events; do sort -u /var/log/client-ips.log
-o /var/log/ips-unique.log ;done
I also asked this question via mail to the "rsyslog-community" their contact mail is listed at the bottom of the rsyslog documentation (https://lists.adiscon.net/mailman/listinfo/rsyslog)
They gave me the advise to use "Lookup-Tables" to solve this. Currently reading how to use them correctly. Since I am a slow learner, this should take a while.
EDIT 2
A new plan is starting to form:
- To get Lookup-Table going, I need to create a JSON-File, which
contains the values I am going to build my filter with - Update the JSON File with "reload_lookup_table" or "JQ", whenever a new IP is added to the
IP-Pool-List. - Use RSYSLOG Lookup-Table to filter for the given IPs and split the
results into two seperate log files | Match.log | NoMatch.log
Hope it'll work this way.
Happy New Year
peacemaker
arrays json jq lookup-tables rsyslog
asked Jan 3 at 12:34
peacemakerpeacemaker
368
add a comment |
There is a list of IPs (their quantity is changing every few minutes) stored in a log-file. The logfile only contains unique IPs (sort -u):
IP-Pool.log [Example]:
192.168.1.1
192.168.1.2
10.1.1.0
.
.
I would like to filter occuring connection events with rsyslog and sort them by:
- Events where $msg contains one IP of Array[IP-Pool-List]
- Events where $msg doesn't contain any IP of Array[IP-Pool-List]
Therefore I would have to put the IPs into an array so they can be compared but I haven't found a way to do so.
if $msg contains 'connection-event-id' then {
if $msg contains 'Array[IP-Pool-List] then {
-/var/log/event_contains_ip.log
STOP
}
else{
-/var/log/event_doesnt_contain_ip.log
STOP
}
}
Would I also have to restart the rsyslogd service in order to refresh the array [IP-Pool-List], since the file is changing every few minutes ?
Is there a way to solve this with rsyslog, or is there an easier/better way to do this ?
EDIT
I used crontab and inotifywait to keep the IP-Pool-File up to date.
@reboot inotifywait -q -m -e modify /var/log/client-ips.log |
while read -r filename events; do sort -u /var/log/client-ips.log
-o /var/log/ips-unique.log ;done
I also asked this question via mail to the "rsyslog-community" their contact mail is listed at the bottom of the rsyslog documentation (https://lists.adiscon.net/mailman/listinfo/rsyslog)
They gave me the advise to use "Lookup-Tables" to solve this. Currently reading how to use them correctly. Since I am a slow learner, this should take a while.
EDIT 2
A new plan is starting to form:
- To get Lookup-Table going, I need to create a JSON-File, which
contains the values I am going to build my filter with - Update the JSON File with "reload_lookup_table" or "JQ", whenever a new IP is added to the
IP-Pool-List. - Use RSYSLOG Lookup-Table to filter for the given IPs and split the
results into two seperate log files | Match.log | NoMatch.log
Hope it'll work this way.
Happy New Year
peacemaker
arrays json jq lookup-tables rsyslog
asked Jan 3 at 12:34
peacemakerpeacemaker
368
There is a list of IPs (their quantity is changing every few minutes) stored in a log-file. The logfile only contains unique IPs (sort -u):
IP-Pool.log [Example]:
192.168.1.1
192.168.1.2
10.1.1.0
.
.
I would like to filter occuring connection events with rsyslog and sort them by:
- Events where $msg contains one IP of Array[IP-Pool-List]
- Events where $msg doesn't contain any IP of Array[IP-Pool-List]
Therefore I would have to put the IPs into an array so they can be compared but I haven't found a way to do so.
if $msg contains 'connection-event-id' then {
if $msg contains 'Array[IP-Pool-List] then {
-/var/log/event_contains_ip.log
STOP
}
else{
-/var/log/event_doesnt_contain_ip.log
STOP
}
}
Would I also have to restart the rsyslogd service in order to refresh the array [IP-Pool-List], since the file is changing every few minutes ?
Is there a way to solve this with rsyslog, or is there an easier/better way to do this ?
EDIT
I used crontab and inotifywait to keep the IP-Pool-File up to date.
@reboot inotifywait -q -m -e modify /var/log/client-ips.log |
while read -r filename events; do sort -u /var/log/client-ips.log
-o /var/log/ips-unique.log ;done
I also asked this question via mail to the "rsyslog-community" their contact mail is listed at the bottom of the rsyslog documentation (https://lists.adiscon.net/mailman/listinfo/rsyslog)
They gave me the advise to use "Lookup-Tables" to solve this. Currently reading how to use them correctly. Since I am a slow learner, this should take a while.
EDIT 2
A new plan is starting to form:
- To get Lookup-Table going, I need to create a JSON-File, which
contains the values I am going to build my filter with - Update the JSON File with "reload_lookup_table" or "JQ", whenever a new IP is added to the
IP-Pool-List. - Use RSYSLOG Lookup-Table to filter for the given IPs and split the
results into two seperate log files | Match.log | NoMatch.log
Hope it'll work this way.
Happy New Year
peacemaker
arrays json jq lookup-tables rsyslog
arrays json jq lookup-tables rsyslog
asked Jan 3 at 12:34
peacemakerpeacemaker
368
asked Jan 3 at 12:34
peacemakerpeacemaker
368
edited Jan 7 at 11:31
peacemaker
asked Jan 3 at 12:34
peacemakerpeacemaker
368
asked Jan 3 at 12:34
peacemakerpeacemaker
368
asked Jan 3 at 12:34
peacemakerpeacemaker
368
368
add a comment |
add a comment |
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