VMware releases patches from time to time within each major version. Conventionally, in a standalone environment without vCenter, it was necessary to install VIB (VMware Infrastructure Bundle) with esxcli. However, since ESXi 6.5 has WebGU…
In Logstash, since the configured Config becomes effective as a whole, it becomes a single output setting with a simple setting. Therefore, it is possible to set multiple outputs by conditionally branching according to items with if. Based…
In Logstash, try setting the same as Fluentd (td-agent) forest plugin and copy combined. As a result, even if the log type and the sender increase, it is possible to simplify without adding the output setting every time. What to expect - S…
Kibana is available as a log visualization tool for Elasticsearch, but sometimes I want to create a dashboard with Grafana by combining data such as ZABBIX. As a starting point, describe how to link Elasticsearch as Grafana's data source. …
Visualize the Cisco ASA FW log with Fluentd (td-agnet), which is popular as a log collection tool. Logs received by Fuentd are indexed by ElasticSearch and visualized by Kibana. Fluentd plugin and settings Cisco ASA Logging Configuration F…
One of the functions that is hardly implemented while being requested by Kibana is export from the Discover screen. Github also has long been requested as an issue. github.com Among them, there are some people who provide function implemen…
Since the Cisco ASA is a security device, It does not support CDP/LLDP which collects information on neighboring NW devices. Information on the Cisco Support Community Several questions on ASA's CDP/LLDP compliance status are being made. T…
A problem occurred in the home lab's wireless AP Cisco Aironet AIR1131AG, in which the status of the Dot11Radio interface became reset after recovery from a power outage. The cause of the blackout was due to excess power supply capacity of…
I created a DNS name confirmation confirmation tool in Express + Node.js for API cooperation between servers. Since name resolution is performed on Node.js on the server, it is possible to check in the same environment as the actual applic…
I am building a DMZ in my home lab with the Cisco ASA 5505. In the case of a simple inside-outside setting, set the security level to inside: 100, outside: 0 and allow traffic from outside by FW and NAT. However, inclusion of the DMZ makes…
I had trouble communicating from the DMZ to the inside when I built a DMZ with ASA 5505 in my home laboratory. Components Cisco ASA 5505 (BASE License, Ver.9.2 (3)) Cisco Catalyst 2960 VMware ESXi Because ASA 5505 can not use VLAN trunk wi…
When I started using Ansible, the operation became slow when the setting amount became large. I solved the problem by dividing it, so make a note of the confirmation point. (CentOS 7.3 ansible 2.2.1.0) As a result, waiting for DNS timeout …
When setting the sorting rule in Outlook, AND / OR combination can not be done well if it is the usual setting. I will introduce the recommended settings especially when you want to use the OR condition. Microsoft Community Use header info…
Ubuntu is one of the major distributions of Linux and has a wide share in desktop applications. When installing various software, it is necessary to pay attention to the version of kernel in addition to the version of the OS itself. The co…
I sometimes want to check whether the published server is accessible from other server, and created a simple program with Express + Node.js. By doing this, you can check that you can not do it by itself, such as access confirmation to the …
As introduced in this article, the sync-request module can perform HTTP communication by synchronous processing. This makes simple code without callback processing by asynchronous processing peculiar to javascript. However, on the sync-req…
When implementing HTTPS (SSL), examination of certificates is also required. When publishing many sites, there are many FQDNs, but you can reduce the number of certificates by using wild card certificates, multi domain (SANs) certificates.…
With Secure Shell provided with Chromebook (Google Chrome), you can run Linux (CentOS) server without TeraTerm on Chromebook. In this procedure, switching to developer mode is unnecessary. Generate public key Copy the public key / private …
Install CeontOS 7.3 on VMware vSphere ESXi 6.5. Use the free (Essential) version of ESXi. Unfortunately, since vCenter can not be used at no charge, it is a standalone configuration. For the guest OS use the Linux distribution CentOS. Sinc…
With the basic license, the Cisco ASA 5505 can set up to three VLANs. However, if you try to set it normally, you will get an error when setting nameif in the third VLAN. Describe how to resolve the error and set nameif in the third VLAN. …
Cisco Aironet is one of wireless APs popular in the enterprise. Since AIR1131AG is also exhibited in second-hand market, it is easy to introduce it to home network. There are many centrally controlled types by WLC in the enterprise, and ma…
Used as internal domain (Internal Domain Name) .Local. In many cases it uses local domains such as test.local and test.internal. Describe the problem of "How to do SSL certificate" which is one of problems occurring while using local domai…
Cloud log management service Papertrail. Minimal features are available for free, making it ideal for managing FW logs etc in home labs. Also, since it is not necessary to construct a syslog server, it is highly effective even in verificat…
When using widely used version management tool Git on Windows, use Git for Windows (Git Bash). When handling Japanese files, describe the correspondence between garbled characters that are displayed as \xx (backslash, \mark number). Instal…
(This article is information as of December 2016) Since I purchase additional home server and two ESXi will be configured, I considered installing vCenter Server. Basically, for verification purposes as a home lab, I am considering using i…
I thought that I would like to replace my server at home, I made various selections and summarize it. The current environment is as follows. DELL PowerEdge SC 440 CPU: Core 2 quad Q6700 2.66 GHz Memory: 8 GB DISK: Western Digital (WD) HDD …
PaaS such as Cloud Foundry generally routes to the CF Router with wildcard DNS, then it will route HTTP from the host of the FQDN within the CF. We will show you how to configure wildcard DNS with the DNS server function of Windows Server …
As introduced in this article, Windows Server can be used free of charge for free for 180 days as an evaluation version. Windows Server Free Usage (2016 Technical Preview 4) - designetwork(EN) Windows Server TP4 has already expired, and yo…
VMware ESXi (vSphere) is not officially supported, but you can use nested virtualization for verification. Using this, I thought of installing Ubuntu (Linux) as a guest OS of ESXi, and using VirtualBox within it. Eventually I wanted to use…
Cloud Foundry has a wide market share as PaaS infrastructure software. Pivotal Cloud Foudry, one of its commercial distributions, is also widely used in commercial services. Cloud Foundry is composed of many components and requires a large…
