ELK-Stack (Elasticsearch Kibana Logstash) – Index not writable (read-only)

Error: [INFO ][logstash.outputs.elasticsearch] retrying failed action with response code: 403 ({“type”=>”cluster_block_exception”, “reason”=>”blocked by: [FORBIDDEN/12/index read-only / allow delete (api)];”}) Log-Message Resolution 1. Cleanup your disk or expand it 2. Set Indices to “read_only_allow_delete”: “false” You can do this over Kibana –> Dev Tools Or via curl

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Ubuntu: Set Time and Timezone

Check current date / time List available timezones Set timezone Check current date/time configuration Sync time with ntp Ensure that “status systemd-timesyncd” is running Time synchronistation is enabled by default. Run the command timedatectl and ensure that “System clock synchroized” and “systemd-timesyncd.service active” are both set to yes. If not,

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System, Event-ID 1102, SNMP

Log Name System Source SNMP Event-ID 1102 Level Warning User N/A Task Category None Message The SNMP Service is ignoring extension agent dll C:\Program Files\QLogic Cosporation\SNMP\qlaspmgnt.dll because it is missing or misconfigured. The path “C:\Program Files\\QLogic Cosporation\SNMP\” does not exist. It should be ” C:\Program Files\QLogic Corporation\SNMP\”. Edit path in

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Cisco Nexus: Scheduled Backup

Create Backup-Script on nexus Maybe you need to use another vrf. This depends on what vrf you configure on your Management-VLAN-Interface Create Task using Embedded Event Manager (EEM) Description snmp oid 1.3.6.1.4.1.9.9.109.1.1.1.1.6.1: check CPU-Load entry-val 12345: if CPU-Load is below 12345% poll-interval 86400: run actions every 86400 seconds Hint On

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Windows Subsystem for Linux (WSL)

Enable via Powershell Set Default Linux-Distribution (if you have installed multiple distros) List current installed distributions Install new distribution Browse the following URL:https://aka.ms/wslstoreYou will be redirected to the Windows Store App. Select desired distro and install it. List currently running distributions Terminate Linux-Distribution Run WSL-Command (Linux Commands) from cmd Change

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