VirtualTam's bookmarks

61. selenium - How to make Xvfb display visible? - Stack Overflow 2017-02-01

    tags: display, selenium, virtual, vnc, x11, xvfb

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62. Unikernels - Rethinking Cloud Infrastructure 2016-12-30

    tags: linux, linux/container, linux/container/docker, unikernel, virtualization, xen

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    https://www.linuxjournal.com/content/unikernels-docker-and-why-you-should-care

63. Linux: Find Out What Process Are Using Swap Space 2016-12-17

    tags: hardware/ram, linux, memory, swap, virtualization/proxmox

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    "Sauf que y a tj un mec dans la boîte qui vient faire chier à demander un environnement Java (sous couvert de Big data tout ça...) je suis d'accord il faudrait le licencier immédiatement mais en attendant c'est la fête du Swap..."

64. Postfix / Dovecot / ClamAV / Spamassassin 2016-12-12

    tags: antivirus, bayesian, email, email/dovecot, email/milter, email/sieve, email/spam, filter, linux, linux/centos, linux/debian, linux/red-hat, roundcube, sysadmin

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    A whole buncha' links with contradictory information on how to properly set up a mail server ;-)

    Disclaimer - My primary goal is to add proper Spamassassin (SA) filtering to an existing Postfix / Dovecot / roundcube installation, i.e.:

    • use SA as a milter (mail filter) to attribute a spam score to incoming mail
    • keep SA up-to-date
    • train SA with spam/ham from the users' virtual mailboxes
    • train SA according to user decisions (actual user or trained mail client with automatic/trained spam detection)

    Here we go!

    Most useful links; I stumbled upon them as soon as I knew what to look for:

    • https://workaround.org/ispmail/jessie/spamassassin
    • https://lelutin.ca/posts/installing_postfix_-_clamav_-_spamassassin_-_dovecot_-_postfixadmin_on_debian_squeeze/

    Official:

    • https://spamassassin.apache.org
    • https://spamassassin.apache.org/gtube/
    • https://wiki.apache.org/spamassassin/FrequentlyAskedQuestions

    Debian:

    • https://wiki.debian.org/DebianSpamAssassin
    • http://www.stefan-seelmann.de/wiki/mailserver-postfix-dovecot (wheezy)
    • https://www.christianroessler.net/tech/2015/spamassassin-dovecot-postfix.html
    • https://www.digitalocean.com/community/tutorials/how-to-configure-a-mail-server-using-postfix-dovecot-mysql-and-spamassassin

    CentOS:

    • https://www.rosehosting.com/blog/how-to-install-and-integrate-spamassassin-with-postfix-on-a-centos-6-vps/
    • https://www.rosehosting.com/blog/how-to-set-up-server-side-email-filtering-with-dovecot-sieve-and-roundcube-on-a-centos-6-vps/
    • http://shisaa.jp/postset/mailserver-1.html - a bit outdated but plenty of useful information regarding how components interact with each other
    • http://wiki2.dovecot.org/HowTo

    RHEL:

    • https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/System_Administrators_Guide/ch-Mail_Servers.html
    • https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/System_Administrators_Guide/s1-email-mta.html
    • https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/System_Administrators_Guide/s1-email-mda.html
65. Cloud gaming 2016-10-25

    tags: asus, blade, cloud, computing, gaming, grid, nvidia

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    • http://arstechnica.com/gaming/2012/05/nvidia-virtualizes-the-gpu-for-streamed-desktops-and-cloud-gaming/
    • http://www.nvidia.com/object/grid-technology.html
    • http://www.lesnumeriques.com/ordinateur/blade-quand-start-up-francaise-se-lance-dans-cloud-gaming-n53689.html
    • http://www.afjv.com/news/6737_asus-s-associe-avec-blade-a-l-origine-du-cloud-gaming-shadow.htm
66. Howto: Setup Debian Web and Mailserver with Apache, PHP-fpm, MySQL, Postfix, Dovecot, virtual users in flatfiles and SSL/TLS · Christian Roessler 2016-10-22

    tags: apache, email, email/dovecot, email/postfix, linux/debian, network/http, programming/php, server, sysadmin

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67. Proxmox VE Bug 839 – LXC containers show host /proc limits instead of actual limits available 2016-08-09

    tags: hardware/cpu, linux, linux/container, linux/container/lxc, observability, resource, virtualization/proxmox

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    via https://forum.proxmox.com/threads/lxc-container-show-load-and-hardware-from-host.26051/ rel https://github.com/lxc/lxcfs/issues/88

68. Literate DevOps 2016-03-29

    tags: babel, development, devops, documentation, editor/emacs, literate, mode, org, sysadmin

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    """ Instead of opening up a terminal to my virtual machine, I pop into Emacs and load this sprint’s /note file/1, create a new header, and enter the shell and ruby commands in this text file.

    What good is this? Unlike a traditional terminal, this allows me to log, document and execute each command.

    As an old bear with very little brains, my prose can explain the background and purpose of each command. Clicking the hyperlink refreshes my memory of previous discoveries. A keychord executes the code block… """

69. Proxmox VE - Installation (4.1) 2016-01-05

    tags: linux, linux/container, linux/container/lxc, linux/container/openvz, linux/debian, sysadmin, virtualization/hypervisor, virtualization/kvm, virtualization/proxmox, web

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    https://pve.proxmox.com/wiki/Upgrade_from_3.x_to_4.0 https://pve.proxmox.com/wiki/Convert_OpenVZ_to_LXC

70. PHP: php_value vs php_admin_value and the use of php_flag explained 2015-07-06

    tags: configuration, development, observability/logging, programming/php, server, setting, value, web

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    via http://stackoverflow.com/questions/176/error-log-per-virtual-host see http://php.net/manual/en/function.error-log.php

71. Apache: use /etc/hosts to resolve local hosts & use them for virtualhost definition 2015-06-07

    tags: apache, domain, host, local, programming/testing, virtual, web

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    Pro: no need to setup a DNS server to test virtualhosts Con: keep in mind that all "fake" hosts will point to 127.0.0.1!

    1. Use /etc/hosts to declare test hosts / domains / subdomains

    #<ip-address>	<hostname.domain.org>	<hostname>
    127.0.0.1	localhost.localdomain	localhost
    127.0.0.1	host.localdomain	host
    127.0.0.1	sub.host.localdomain	sub.host
    ::1		localhost.localdomain	localhost
    

    2. Allow per-user virtualhost definition in either (depending on your distro)

    • /etc/httpd/conf/httpd.conf
    • /etc/apache2/apache2.conf

    Include /home/albert/.httpd/*.conf

    3. Profit! Create virtualhosts with local hostnames :)
72. Performance Evaluation of Virtualization Technologies for Server Consolidation 2015-06-07

    tags: hp, linux, linux/container, linux/container/openvz, virtualization, xen

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73. IPOP 2015-04-11

    tags: network, network/ip, network/vpn, p2p, virtual

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    IPOP (IP-over-P2P) is an open-source user-centric software virtual network allowing end users to define and create their own virtual private networks (VPNs).

74. jvm.go - GitHub 2015-03-15

    tags: machine, programming/go, programming/java, virtual

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75. WebVirtMgr: web virtualization manager 2015-02-14

    tags: linux, virtualization, virtualization/kvm, web

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76. Kimchi: KVM web management interface 2015-02-14

    tags: linux, programming/python, sysadmin, virtualization, virtualization/kvm, web

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77. Starting and Accessing Jenkins 2015-01-09

    tags: continuous-integration, continuous-integration/jenkins, memory, performance, programming/java, service, virtual

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    To increase the memory allocated and available:

    # /etc/default/jenkins
    JAVA_ARGS="-Xms4G -Xmx16G -Djava.awt.headless=true"
    

    See also

    • Jenkins performance hints: http://soldering-iron.blogspot.com/2014/01/jenkins-performance-hints.html
    • Java commandline options: http://docs.oracle.com/javase/7/docs/technotes/tools/windows/java.html
78. Dexpot | Virtual desktops for Windows 2014-08-04

    tags: desktop, microsoft/windows, virtual, workspace

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79. WarmPlace.Ru. Virtual ANS Spectral Synthesizer 2014-06-21

    tags: ans, audio, digital-audio-workstation, instrument/synthesizer, linux, virtual

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    http://en.wikipedia.org/wiki/ANS_synthesizer

80. VMPK. Virtual MIDI Piano Keyboard 2013-10-01

    tags: digital-audio-workstation, instrument/keyboard, instrument/midi, linux

    [ permalink ]