I created Helm Chart of Praeco (ElastAlert GUI) . Praeco is Web GUI for ElastAlert. github.com Beta Release repo Installation Screen Shots with BOSH Summary - Installing Praeco (ElastAlert GUI) into Kubernetes with Helm (Beta) Beta Release…
Earlier, I reviewed the open source (OSS) NetFlow collector, as summarized in this article. designetwork.daichi703n.com When I investigated again, I found ElastiFlow , a NetFlow collector and visualizer based on Elasticsearch + Logstash + …
Sometimes a NAT machine is created by iptables on Linux, such as an AWS NAT instance. If you are a network engineer who has experience in operating network devices such as routers and FWs, you will often want to check the connection status…
Implement SSH Public Key Authentication on the Cisco ASA, which is common in server operation. This makes it possible to operate more securely and efficiently. Official information Environment information Setting up SSH public key authenti…
On the 24th day of Cloud Foundry Advent Calender 2018 I will implement chaos engineering which is introduced by advanced companies and services. If it is an environment constructed by BOSH, such as Cloud Foundry and Kubernetes, it can be i…
On the 23rd day of Cloud Foundry Advent Calender 2018 Procedures for building BOSH-Lite in the local environment with VirtualBox are explained in some articles. In these, as described in the BOSH Official, you have to manage and access fro…
Easy Gantt is useful Redmine's Gantt chart tool, but when combined with the theme Gitmike, holidays are not grayed out by default. Note that this problem does not occur in the default theme. Customize CSS so that you can gray out holidays …
In this article I connected the Docker container with an external network 802.1Q VLAN Tag. en-designetwork.hatenablog.com This time with define as Docker-Compose file to make it easier to operate. If I make it further, I think that network…
I am considering a system that utilizes the Docker container for tests such as network communication and route confirmation. It is inefficient to prepare a large number of PCs for testing, so we would like to utilize a lightweight and spee…
In an environment where SSH access to the server is restricted by a firewall or the like, SSH Proxy access to the backend server is established by SSH R-Proxy server (Docker container), not a step-by-step server. There is also a method to …
Task management in Redmine, markup overestimated tickets helps to prevent countermeasure leakage. Equivalent effects can be expected by using remind mail, but it is easy to grasp the situation by markup even when displaying the list. Imple…
For package installation in the Proxy environment, it is necessary to designate the proxy server by environment variables and so on. Similarly for Gem and Bundler, setting of environment variables http_proxy is required. During constructio…
When adding a plugin to Docker Redmine, if you need to install the Gem package, set the Proxy environment variable in docker-compose.yml. The problems that occurred, the contents of the investigation, and how to respond are shown. Environm…
Redmine running on Docker response when creating and updating tickets got worse, and as the problem was solved by investigating cause/workaround, write down the procedure. As a result, by setting the SMTP mail notification to Async (asynch…
I will introduce Hinemos that is integrated monitoring system NTT-DATA develops as OSS, with Docker. Here is the official Docker Image, but it seems that the version is old and maintenance is not done, so create it from original Dockerfile…
Basically install BOSH on OpenStack as described here. https://bosh.io/docs/init-openstack.html Although it is possible to work with CentOS that is used as a host of OpenStack, in my environment using PackStack, did not work well because o…
Since OpenStack Queens has been released, we verify from installation to initial use. Using PackStack, which can easily build OpenStack environment, build a practical OpenStack verification environment with a little customization. OpenStac…
When building OpenStack for verification and deploying CirrOS, the SSH key pair was not imported, and an issue occurred that CANNOT login to the instance by the SSH private-public key. OS is similar for CirrOS and Debian. (Switch to passwo…
This article implemented DS-Lite Internet access at ZOOT NATIVE & CentOS. en-designetwork.hatenablog.com However, it is troublesome (problem of familiarity) to operate CentOS (Linux) as a router, so build an equivalent DS-Lite environment …
This article tested Internet access speedup by IPv6 connection, but IPv6 Plus (MAP-E) provided by @nifty requires dedicated equipment, the Cisco ASA5505, VyOS, Linux etc. can only perform simple IPoE connection , It was not possible to spe…
Since the speed of home Internet has slowed and dissatisfaction has become bigger, I will try to introduce IPv6 aiming for improvement. Although there are restrictions for continued use of the Cisco ASA, it was possible to construct a mini…
Kibana 's long - awaited feature, the ability to CSV - export search results on the Discover tab. It is finally implemented from Version 6. I can not wait for the GA release, I tried the Alpha version. github.com Kibana 6.0.0-alpha2 is rel…
In this article I built a feature addition version that can be exported from Discover tab of Kibana, but honestly it took quite a lot of trouble. en-designetwork.hatenablog.com Over time, there seems to be someone who created the same func…
Change the scroll setting when switching to Vim screen with iTerm 2 popular as a MacBook terminal. I often see an article saying .vimrc the following setting, but it did not work well in my environment. vi ~/.vimrc set mouse=a This time, n…
As described in this article, Beats (Filebeat) is sending Fluentd in a simple log. en-designetwork.hatenablog.com I noticed that the following logs occurred frequently among them. It seems to be a mechanism of Beats' s Metrics monitoring, …
Beats is a lightweight log shipper with a buffer and retransmission function (acknowledgment), and installing it on the server that generates logs makes it easy to analyze logs in Elasticsearch. I usually use Fluentd (td-agent) as the main…
My colleague said, "I want to study servers at home, but there is only an old PC (32 bit) and I can not build ESXi." In order to provide a verification environment, I built ESXi hosting environment in my home laboratory. I am using ESXi v6…
When load balancing HTTP/S with F5 BIG-IP, make S-NAT and add X-Forwarded-Proto, X-Forwarded-For HTTP header. The setting method of this time is based on the information of this discussion. https://devcentral.f5.com/questions/x-forwarded-p…
I attempted to deploy F5 BIG-IP VE (Virtual Edition) to VMware ESXi 6.5 for evaluation, but an error occurred and the deployment failed. As a result, ALL, LTM's OVA image could not be deployed, and deployment succeeded with 1 SLOT model. E…
Add HDD to Dell PowerEdge T110 II used as home server. The existing DISK uses the initial installed RAID controller PERC H200A and has a RAID1 configuration. Since up to four HDDs can be connected to the controller, the remaining two are a…
