VirtualTam's bookmarks

21. IoT logging with MQTT, Fluentd / Fluent Bit and Loki 2020-08-15

    tags: embedded, fluentd, internet-of-things, network/mqtt, observability/grafana, observability/logging, observability/logging/grafana-loki

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    Open questions, potential solutions or workarounds:

    • Loki does not support out-of-order message ingestion
      • https://github.com/grafana/loki/issues/1544
      • https://github.com/project-hatohol/fluent-plugin-sort
    • There is not Java client for Loki
      • https://github.com/grafana/loki/issues/1158
      • https://grafana.com/docs/loki/latest/api/
      • https://github.com/grafana/loki/tree/master/cmd/fluent-bit
    • The Wiced MQTT queue might be limited depending on the volume of logs
      • https://iotexpert.com/2017/03/08/embedded-world-2017-wiced-wifi-mqtt-and-the-amazon-iot-cloud/
22. What is "AWS Security Scanner" in my server logs? 2020-07-31

    tags: cloud/aws, network, security

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    • https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/configuring-instance-metadata-service.html
    • https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-metadata.html
    • https://docs.aws.amazon.com/cli/latest/reference/ec2/modify-instance-metadata-options.html
    • https://aws.amazon.com/blogs/security/defense-in-depth-open-firewalls-reverse-proxies-ssrf-vulnerabilities-ec2-instance-metadata-service/
    • https://aws.amazon.com/blogs/aws/new-host-based-routing-support-for-aws-application-load-balancers/
    • https://aws.amazon.com/about-aws/whats-new/2018/07/elastic-load-balancing-announces-support-for-redirects-and-fixed-responses-for-application-load-balancer/
    • https://www.reddit.com/r/aws/comments/e18e5n/botexploit_what_is_this_trying_to_do_and_how
    • https://www.reddit.com/r/aws/comments/e18e5n/botexploit_what_is_this_trying_to_do_and_how/f8qympp/
    • https://forums.aws.amazon.com/thread.jspa?threadID=316889
    • https://owasp.org/www-community/attacks/Server_Side_Request_Forgery
    • https://www.wired.com/story/capital-one-paige-thompson-case-hacking-spree/
    • https://krebsonsecurity.com/2019/08/what-we-can-learn-from-the-capital-one-hack/
    • https://krebsonsecurity.com/2019/07/capital-one-data-theft-impacts-106m-people/
    • http://www.thecloudavenue.com/2019/08/how-capital-one-hack-was-achieved-in-aws.html
    • http://www.thecloudavenue.com/2019/11/changes-to-aws-ec2-instance-metadata-service.html
23. Live Looping with Bitwig Studio on Linux 2020-02-29

    tags: audio, bitwig, digital-audio-workstation, linux, loop

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    • https://www.kvraudio.com/forum/viewtopic.php?f=259&t=530584
    • https://www.kvraudio.com/forum/viewtopic.php?f=259&t=530584&start=15
    • https://www.kvraudio.com/forum/viewtopic.php?f=259&t=515018
    • https://www.kvraudio.com/forum/viewtopic.php?f=268&t=534459
    • https://www.youtube.com/watch?v=eHVoygoMuIs
    • https://www.youtube.com/watch?v=DomZafMSfE0
    • https://www.youtube.com/watch?v=kE8iaFdS4B8
    • https://github.com/solinas3000/Looper4BitwigScript
    • https://www.reddit.com/r/Bitwig/comments/bnjcp5/looper_preset_for_bitwig_3/
    • https://www.reddit.com/r/Bitwig/comments/bup7f0/updated_looper_fx_preset_now_support_dynamic/
    • https://www.reddit.com/r/Bitwig/comments/bahmdh/advice_turn_bitwig_into_a_jamming_daw/
24. pspg: Unix pager designed for work with tables. Designed for PostgreSQL, but MySQL is supported too. Now it can be used as CSV or TSV viewer. 2020-01-10

    tags: command-line, database, database/mysql, database/postgresql, pager, programming/csv, table

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    • https://okbob.blogspot.com/2017/07/i-hope-so-every-who-uses-psql-uses-less.html
25. GitHub Load Balancer Director and supporting tooling 2019-12-31

    tags: high-availability, load-balancing, network, network/http, network/http-server/haproxy, network/tcp, source-code-management/github

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    • https://github.com/github/glb-director
    • https://github.blog/2018-06-20-mysql-high-availability-at-github/
26. AWS | Enable Enhanced Networking with Elastic Network Adapters for vintage OS AMIs 2019-09-17

    tags: chroot, cloud/aws, linux, linux/debian, linux/kernel, virtualization, xen

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    Paravirtual (PV) to Hardware Virtual Machine (HVM):

    • https://stackoverflow.com/questions/24330721/amazon-ec2-how-to-convert-an-existing-pv-ami-to-hvm

    ENA support:

    • https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/enhanced-networking-ena.html
    • https://forums.aws.amazon.com/thread.jspa?threadID=166135
    • https://aws.amazon.com/premiumsupport/knowledge-center/boot-error-linux-m5-c5/
    • https://bugs.centos.org/view.php?id=14107
    • https://ygrene.tech/how-to-enable-ena-support-for-aws-amis-in-5-steps-and-make-your-bamboo-remote-jobs-really-fast-f2a4254a9955

    Build Debian AMIs from scratch:

    • https://bootstrap-vz.readthedocs.io/en/master/
    • https://github.com/andsens/bootstrap-vz
    • https://www.slideshare.net/JamesBromberger/debian-cloud-building-the-debian-amis
    • https://blog.james.rcpt.to/2012/12/06/official-debian-images-on-amazon-web-services-ec2/

    Squeeze:

    • https://lists.debian.org/debian-cloud/2013/02/msg00023.html

    Wheezy:

    • https://lists.debian.org/debian-cloud/2014/10/msg00009.html
    • https://lists.debian.org/debian-cloud/2014/11/msg00000.html

    Boot to chroot:

    • https://unix.stackexchange.com/questions/85714/boot-into-a-chroot
    • https://wiki.debian.org/chroot
    • https://wiki.debian.org/Debootstrap
    • https://superuser.com/questions/384437/booting-linux-system-from-chroot-is-there-a-better-way-to-do-this/384457#384457
    • https://github.com/lemonsqueeze/boot-chroot
27. Network Automation and Programmability Abstraction Layer with Multivendor support 2019-07-15

    tags: automation, ddos, hardware, linux/kernel/ebpf, network, network/router

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    • https://github.com/napalm-automation/napalm
    • https://pynet.twb-tech.com/blog/automation/napalm-ios.html
    • https://blog.cloudflare.com/the-internet-is-hostile-building-a-more-resilient-network/
    • https://blog.ipspace.net/2015/06/napalm-integrating-ansible-with-network.html
28. Xournal++ is a handwriting notetaking software with PDF annotation support 2019-06-21

    tags: document, notebook, notes, pdf

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29. CloudWatch GetMetricData support by mtanda · Pull Request #11624 · grafana/grafana · GitHub 2019-04-04

    tags: cloud/aws, observability, observability/grafana

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    • https://docs.aws.amazon.com/AmazonCloudWatch/latest/APIReference/API_MetricDataQuery.html
    • https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/using-metric-math.html
    • https://community.grafana.com/t/how-to-plot-the-rate-of-change-or-the-incline-of-a-line-plot/14334/6
30. ONNX - Open Neural Network Exchange 2019-01-14

    tags: machine-learning, machine-learning/tensorflow, neural-network

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    • https://github.com/onnx/onnx
    • https://github.com/onnx/onnxmltools
    • http://onnx.ai/supported-tools
31. Markdown — Sphinx documentation 2018-10-21

    tags: documentation, documentation/sphinx, programming/markdown, read-the-docs, web

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    • https://blog.readthedocs.com/adding-markdown-support/
    • https://stackoverflow.com/questions/2471804/using-sphinx-with-markdown-instead-of-rst
    • https://github.com/rtfd/recommonmark
    • https://stackoverflow.com/questions/2471804/using-sphinx-with-markdown-instead-of-rst
32. NFS Native Support - Docker for Mac - Docker Forums 2018-08-03

    tags: apple/macos, filesystem, linux/container/docker, performance

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    • https://medium.com/@sean.handley/how-to-set-up-docker-for-mac-with-native-nfs-145151458adc
    • https://forums.docker.com/t/nfs-and-write-permission/48395
33. Playing Badass Acorn Archimedes Games on a Raspberry Pi | DXM Tech Support 2018-07-01

    tags: arm, computer, game, hardware/cpu, history, risc

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    • http://davetrott.co.uk/2017/03/strategy-is-sacrifice/
34. ReactOS 0.4.8 released!! | ReactOS Project 2018-04-16

    tags: microsoft, microsoft/windows, nt, operating-system

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    • https://www.reddit.com/r/linux/comments/8cf4em/reactos_48_released_primary_nt6_software_support/
    • https://en.wikipedia.org/wiki/OpenVMS
    • https://en.wikipedia.org/wiki/Dave_Cutler
    • http://www.itprotoday.com/management-mobility/windows-nt-and-vms-rest-story
    • http://www.roughlydrafted.com/2009/07/30/readers-write-how-microsoft-got-windows-nt/
35. termite: A keyboard-centric VTE-based terminal, aimed at use within a window manager with tiling and/or tabbing support. 2018-04-05

    tags: linux, programming/shell, terminal, window-manager/tiling

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36. Atom and RSS libraries for PHP 2018-04-02

    tags: feed, feed/atom, feed/rss, programming/php, validator, web/syndication

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    FeedWriter, aka Universal Feed Generator:

    • https://github.com/mibe/FeedWriter
    • http://ajaxray.com/blog/php-universal-feed-generator-supports-rss-10-rss-20-and-atom/
    • https://www.phpclasses.org/package/4427-PHP-Generate-feeds-in-RSS-1-0-2-0-an-Atom-formats.html

    SimplePie:

    • http://simplepie.org/
    • https://github.com/simplepie/simplepie/

    Zend Feed:

    • https://docs.zendframework.com/zend-feed/
    • https://docs.zendframework.com/zend-feed/writer/
    • https://github.com/zendframework/zend-feed
37. tls - How do I use "openssl s_client" to test for (absence of) SSLv3 support? 2018-03-07

    tags: cryptography/certificate, network/http, network/transport-layer-security, openssl, web

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    • https://www.madboa.com/geek/openssl/
    • https://major.io/2012/02/07/using-openssls-s_client-command-with-web-servers-using-server-name-indication- sni/
    • https://www.feistyduck.com/library/openssl-cookbook/online/ch-testing-with-openssl.html
38. Kotlin and Android | Android Developers 2018-02-14

    tags: mobile/android, programming/c, programming/c++, programming/java, programming/kotlin

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    • https://kotlinlang.org/docs/tutorials/kotlin-android.html
    • https://android.github.io/kotlin-guides/style.html
    • https://proandroiddev.com/android-ndk-interaction-of-kotlin-and-c-c-5e19e35bac74
    • https://medium.com/yalantis-android/android-ndk-calling-kotlin-from-native-code-40a1cb0f6164
    • https://stackoverflow.com/questions/36932662/android-how-to-call-ndk-function-from-kotlin
    • https://android-developers.googleblog.com/2017/05/android-announces-support-for-kotlin.html
    • https://www.youtube.com/watch?v=c6mhYGCKeaI
39. security - What is a retpoline and how does it work? - Stack Overflow 2018-02-11

    tags: linux, linux/kernel, meltdown, security, spectre

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    • https://support.google.com/faqs/answer/7625886
    • https://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-misc.git/commit/?h=spec/retpoline-415-1
    • https://lkml.org/lkml/2018/1/4/724
40. Axe-FX II Linux support? | Fractal Audio Systems Forum 2018-02-10

    tags: audio, axe-fx, gear, hardware, linux

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    • http://wiki.fractalaudio.com/axefx2/index.php?title=USB_connection
    • http://wiki.fractalaudio.com/axefx2/index.php?title=Digital_audio:_USB_Audio,_SPDIF,_AES
    • https://forum.fractalaudio.com/threads/axe-fx-ii-and-linux-again.79061/