# Multiple syslog input into logstash

**URL:** <https://discuss.elastic.co/t/multiple-syslog-input-into-logstash/316360>\
**Category:** Logstash\
**Created:** [October 11, 2022, 4:46pm UTC](https://discuss.elastic.co/t/multiple-syslog-input-into-logstash/316360 "2022-10-11T16:46:47Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![kazishafiullah](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kazishafiullah/32/111940_2.png) [@kazishafiullah](https://discuss.elastic.co/u/kazishafiullah)\
**Post date:** [October 11, 2022, 4:46pm UTC](https://discuss.elastic.co/t/multiple-syslog-input-into-logstash/316360/1 "2022-10-11T16:46:47Z")

</div>

Hello,

I wanted to parse logs of network devices into logstash. I have configured individual pipeline for cisco and paloalto. I have configured the input as syslog with different ports and output to different index names. But I see that paloalto logs are parsing with its configured index pattern and cisco index pattern also. I am confused why it is happening. Here are my two input and output of pipelines.

Cisco pipeline input:

```auto
input {
    syslog {
        port => "5014"
        type => "syslog"
        tags => ["ios-parsed"]
    }
}

```

Paloalto pipeline input:

```auto
input {
    syslog {
        timezone => "Asia/Dhaka"
        port => "5514"
        type => "syslog"
        tags => ["PAN-OS_syslog"]
    }
}

```

Cisco pipeline output:

```auto
output {
  elasticsearch {
    hosts => ["localhost:9200"]
    index => "cisco-logs-%{+YYY.MM.dd}"
  }
}

```

Paloalto pipeline output:

```auto
output {

    if "PAN-OS_traffic" in [tags] {
        elasticsearch {
            index => "panos-traffic"
            hosts => ["localhost:9200"]
        }
    }

    else if "PAN-OS_threat" in [tags] {
        elasticsearch {
            index => "panos-threat"
            hosts => ["localhost:9200"]
        }
    }
    else if "PAN-OS_Config" in [tags] {
        elasticsearch {
            index => "panos-config"
            hosts => ["localhost:9200"]
        }
    }

    else if "PAN-OS_System" in [tags] {
        elasticsearch {
            index => "panos-system"
            hosts => ["localhost:9200"]
        }
    }
}

```

Is there any mistake in inputs and outputs or in filter I am using. I have done filter for both of them with the tags in the input.

---

<div class="post-metadata">

**Author:** ![leandrojmp](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/leandrojmp/32/107231_2.png) [@leandrojmp](https://discuss.elastic.co/u/leandrojmp)\
**Post date:** [October 11, 2022, 4:51pm UTC](https://discuss.elastic.co/t/multiple-syslog-input-into-logstash/316360/2 "2022-10-11T16:51:32Z")

</div>

Are you using [multiple pipelines](https://www.elastic.co/guide/en/logstash/current/multiple-pipelines.html#multiple-pipelines) in `pipelines.yml`?

How are you running Logstash? What does your `pipelines.yml` looks like.

If you do not configured multiple pipelines in `pipelines.yml` you may not have individual pipelines, you may have just one big pipeline merging all your configuration files.

Your cisco output does not have a conditional:

```auto
output {
  elasticsearch {
    hosts => ["localhost:9200"]
    index => "cisco-logs-%{+YYY.MM.dd}"
  }
}

```

So, everything that pass through your inputs and filters will be sent to this index, which seems to be your case.

---

<div class="post-metadata">

**Author:** ![kazishafiullah](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kazishafiullah/32/111940_2.png) [@kazishafiullah](https://discuss.elastic.co/u/kazishafiullah)\
**Post date:** [October 11, 2022, 5:24pm UTC](https://discuss.elastic.co/t/multiple-syslog-input-into-logstash/316360/3 "2022-10-11T17:24:27Z")

</div>

Hello leandrojmp,

Thanks for your reply.

Sorry I have mistakenly used pipeline word. I was about to say configuration file in /etc/logstash/conf.d/ directory. Yes, I understand your logic of output as their is no condition. I have put a condition and found that Paloalto logs are not coming with cisco index now. If I want to get the cisco logs now do I need to create different pipeline for them. My pipeline.yml configurations is default.

```auto
- pipeline.id: main
  path.config: "/etc/logstash/conf.d/*.conf"

```

Note: I can't see any cisco logs now after putting condition.

My configuration for cisco is below:

```auto
input {
  udp {
    port => 5014
    type => syslog
  }
}

filter {
    ##########################
    # General section
    ##########################
    grok {
        match => [
            "message", "<%{NONNEGINT:syslog_pri}>\d+: (%{SYSLOGHOST:device}: )?\*?\.?(\d+: )?%{CISCOTIMESTAMP:log_date}(\s+%{WORD})?: (%%{CISCO_REASON:vendor_facility}-%{INT}-%{CISCO_REASON:vendor_facility_process}: )?%{GREEDYDATA:log_message}"
        ]
        add_tag => ["ios_parsed"]
    }
    syslog_pri { }
    ##########################
    # Config Audit section
    ##########################
    if "ios_parsed" in [tags] and "PARSER" in [vendor_facility] {
        grok {
            match => {
                "log_message" => "User:%{USER:username}\s+From\s+%{IP:source_ip}\s+logged command:%{GREEDYDATA:command_used}"
            }
        }

        mutate {
            add_tag => ["cisco-traffic"]
        }
    }
    ############################
    # Interface status section
    ############################
    if "ios_parsed" in [tags] and "LINEPROTO" in [vendor_facility] and "UPDOWN" in [vendor_facility_process] {
        grok {
            match => {
                "log_message" => "User:%{USER:username}\s+From\s+%{IP:source_ip}\s+logged command:%{GREEDYDATA:command_used}"
            }
        }

        mutate {
            add_tag => ["cisco-traffic"]
        }
    }
    ###################################
    # OSPF Adjacency change section
    ###################################
    if "ios_parsed" in [tags] and "OSPF" in [vendor_facility] and "ADJCHG" in [vendor_facility_process] {
        grok {
            match => {
                "log_message" => "Process\s+%{NUMBER:ospf_instance},\s+Nbr\s+%{IP:ospf_neighbor}\s+on\s+%{DATA:ospf_interface}\s+from\s+%{DATA:before_ospf_state}\s+to\s+%{DATA:after_ospf_state},\s+%{GREEDYDATA:opsf_state_action_result}"
            }
        }

        mutate {
            add_tag => ["cisco-traffic"]
        }
    }

    ###################################
    # BGP Neighbor state
    ###################################
    if "ios_parsed" in [tags] and "BGP" in [vendor_facility] and "NOTIFICATION" in [vendor_facility_process] {
        grok {
            match => {
                "log_message" => "sent\s+to\s+neighbor\s+%{IP:bgp_neighbor}\s+passive\s+%{URIPARAM:retries}\s+%{GREEDYDATA:bgp_other_message}"
            }
        }

        mutate {
            add_tag => ["cisco-traffic"]
        }
    }

    ###################################
    # Configuration change by user
    ###################################
    if "ios_parsed" in [tags] and "SYS" in [vendor_facility] and "CONFIG_I" in [vendor_facility_process] {
        grok {
            match => {
                "log_message" => "Configured\s+from\s+console\s+by\s+%{USER:username}\s+on\s+vty0\s+%{IP:source_ip}"
            }
        }

        mutate {
            add_tag => ["cisco-traffic"]
        }
    }

}

output {
    if "cisco-traffic" in [tags]{
        elasticsearch {
        hosts => ["localhost:9200"]
        index => "cisco-logs-%{+YYY.MM.dd}"
        }
    }
}

```

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [November 8, 2022, 5:25pm UTC](https://discuss.elastic.co/t/multiple-syslog-input-into-logstash/316360/4 "2022-11-08T17:25:20Z")

</div>

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