[월:] 2019년 06월

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USN-4017-2: Linux kernel vulnerabilities

2019-06-18 KENNETH 0

USN-4017-2: Linux kernel vulnerabilities linux, linux-aws, linux-azure, linux-lts-trusty, linux-lts-xenial vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 14.04 ESM Ubuntu 12.04 ESM Summary The system could be made to crash if it received specially crafted network traffic. Software Description linux – Linux kernel linux-aws – Linux kernel for Amazon Web Services (AWS) systems linux-azure – Linux kernel for Microsoft Azure Cloud systems linux-lts-xenial – Linux hardware enablement kernel from Xenial for Trusty linux-lts-trusty – Linux hardware enablement kernel from Trusty for Precise ESM Details USN-4017-1 fixed vulnerabilities in the Linux kernel for Ubuntu. This update provides the corresponding updates for the Linux kernel for Ubuntu 16.04 ESM and Ubuntu 14.04 ESM. Jonathan Looney discovered that the TCP retransmission queue implementation in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment (SACK) sequences. [ more… ]

OpenTracing for NGINX and NGINX Plus

2019-06-18 KENNETH 0

OpenTracing for NGINX and NGINX Plus For all its benefits, a microservices architecture also introduces new complexities. One is the challenge of tracking requests as they are processed, with data flowing among all the microservices that make up the application. A new methodology called distributed (request) tracing has been invented for this purpose, and OpenTracing is a specification and standard set of APIs intended to guide design and implementation of distributed tracing tools. In NGINX Plus Release 18 (R18), we added the NGINX OpenTracing module to our dynamic modules repository (it has been available as a third‑party module on GitHub for a couple of years now). A big advantage of the NGINX OpenTracing module is that by instrumenting NGINX and NGINX Plus for distributed tracing you get tracing data for every proxied application, without having to instrument the applications individually. In [ more… ]

Windows 10 Tip: Start, simplified

2019-06-18 KENNETH 0

Windows 10 Tip: Start, simplified Editor’s note: We’re back with the summer batch of weekly Windows 10 tips posts, which highlight some of the many helpful features that come with the Windows 10 May 2019 Update. We’ve been working hard behind the scenes to make your daily life easier with a streamlined update process, as well as clean and simple experiences for your desktop. If you feel like your life is too cluttered, some of you might find respite in the simplified Start layout that comes with the Windows 10 May 2019 Update. New Windows 10 users – those who have new devices, new user accounts and clean installs – will see the new Start layout by default when they start up. Existing Windows 10 users who upgrade to the Windows 10 May 2019 update can choose to quickly uninstall [ more… ]

[도서] 코딩 강화 파이썬

2019-06-17 KENNETH 0

[도서] 코딩 강화 파이썬 분야별 신상품 – 국내도서 – 컴퓨터와 인터넷 [도서]코딩 강화 파이썬 이규호 저 | 제이펍 | 2019년 06월 판매가 17,820원 (10%할인) | YES포인트 990원(5%지급) 기초부터 차근차근 나선형 구조로 배우는 진짜 입문서! 이 책은 저자가 고등학생을 대상으로 프로그래밍을 가르칠 때 마땅한 교재가 없음을 느껴 집필했습니다. 따라서 중학교 수준의 배경지식만 있으면 배울 Source: [도서] 코딩 강화 파이썬

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Prevent the impact of a Linux worm by updating Exim (CVE-2019-10149)

2019-06-15 KENNETH 0

Prevent the impact of a Linux worm by updating Exim (CVE-2019-10149) This week, MSRC confirmed the presence of an active Linux worm leveraging a critical Remote Code Execution (RCE) vulnerability, CVE-2019-10149, in Linux Exim email servers running Exim version 4.87 to 4.91. Azure customers running VMs with Exim 4.92 are not affected by this vulnerability.  Azure has controls in place to help limit the spread of this worm from work we’ve already done to combat SPAM, but customers using the vulnerable software would still be susceptible to infection.  Customers using Azure virtual machines (VMs) are responsible for updating the operating systems running on their VMs. As this vulnerability is being actively exploited by worm activity, MSRC urges customers to observe Azure security best practices and patterns and to patch or restrict network access to VMs running the affected versions of Exim.  [ more… ]