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RHSA-2016:1096-1: Important: kernel security and bug fix update

2016-05-23 KENNETH 0

RHSA-2016:1096-1: Important: kernel security and bug fix update Red Hat Enterprise Linux: An update for kernel is now available for Red Hat Enterprise Linux 6.4 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. CVE-2015-5364, CVE-2015-5366 Source: RHSA-2016:1096-1: Important: kernel security and bug fix update

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Windows Nano Server Technical Preview 5 and MySQL

2016-05-23 KENNETH 0

Windows Nano Server Technical Preview 5 and MySQL Windows Nano Server is a deployment option of the upcoming Windows Server 2016. It is a “headless” version of Windows Server, pared back to provide the bare essentials necessary to host server / “born in the cloud” applications such as MySQL.… Source: Windows Nano Server Technical Preview 5 and MySQL

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Optimizing NFS Performance

2016-05-23 KENNETH 0

origin : http://nfs.sourceforge.net/nfs-howto/ar01s05.html 5. Optimizing NFS Performance Careful analysis of your environment, both from the client and from the server point of view, is the first step necessary for optimal NFS performance. The first sections will address issues that are generally important to the client. Later (Section 5.3 and beyond), server side issues will be discussed. In both cases, these issues will not be limited exclusively to one side or the other, but it is useful to separate the two in order to get a clearer picture of cause and effect. Aside from the general network configuration – appropriate network capacity, faster NICs, full duplex settings in order to reduce collisions, agreement in network speed among the switches and hubs, etc. – one of the most important client optimization settings are the NFS data transfer buffer sizes, specified by the mount command [ more… ]

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Apache Benchmark apr_socket_recv error when performing a load test

2016-05-23 KENNETH 0

origin : http://blog.scene.ro/posts/apache-benchmark-apr_socket_recv/ Problem Apache Benchmark breaks with apr_socket_recv: Connection reset by peer (104) when performing a load test. This is even more annoying since we do not get results for the requests performed before this one. Context linux host, Ubuntu 14.04, 3.11.0-17-generic kernel performing a load test against a jekyll serve ran on localhost using ab v2.3 for the load test both jekyll and ab are being ran on the same machine Sample Output benny@alpha:~$ ab -c 50 -n 1000 http://localhost:8080/ This is ApacheBench, Version 2.3 <$Revision: 1528965 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benchmarking localhost (be patient) Completed 100 requests Completed 200 requests Completed 300 requests Completed 400 requests Completed 500 requests Completed 600 requests Completed 700 requests Completed 800 requests Completed 900 requests apr_socket_recv: Connection reset by peer [ more… ]

AWS 클라우드 기반 Arduino Web Editor 및 Cloud Platform 공개

2016-05-21 KENNETH 0

AWS 클라우드 기반 Arduino Web Editor 및 Cloud Platform 공개 샌프란스시코에서 열린 Maker Faire 에서 Arduino는 AWS를 기반한 신규 Arduino Web Editor와 Arduino Cloud Platform를 출시하였습니다. 아두이노를 활용하시는 분이시라면, 개발 시 여러 단계가 필요하다는 것을 아실 것입니다. 먼저 PC 시리얼에 보드를 연결하고, 필요한 쉴드(shield)와 Wi-Fi 연결을 한 후, 기본적인 통신이 가능합니다. 또한, 개발 환경을 설치 및 설정 한 후 애플리케이션 개발을 준비합니다. 아두이노 모델에 따라 사용 라이브러리도 다르기 때문에 이러한 모든 설치 작업이 마무리 되어야 마침내 개발 및 디버깅, 테스트가 가능해집니다. Arduino Code Editor Arduino Code Editor는 개발을 위한 설치 과정을 단순화 합니다. 웹 브라우저에서 AWS Lambda 및 여러 AWS 서비스를 사용한 웹 에디터를 실행하면, 클라우드 기반으로 프로그램 코드를 작성 및 수정 저장이 가능합니다. (동료들과 공동 작업도 가능합니다). 에디터는 여러분이 가진 보드(네이티브 플러그인이 필요)를 인지하고, 스스로 설정하게 됩니다. 코드에서 사용하는 보드 호환 라이브러리도 설치되고, 코드 역시 클라우드 기반으로 컴파일 되어서 [ more… ]