Pinboard (jchris)
https://pinboard.in/u:jchris/public/
recent bookmarks from jchrisretrohacker.github.io/2015/09/28/Populating-known_hosts-File.html2022-01-14T10:55:10+00:00
https://retrohacker.github.io/2015/09/28/Populating-known_hosts-File.html
jchrisssh sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:3756770ba340/China und andere Länder dauerhaft mit iptables blocken : Domina ignis : GwenDragons technisches Blog2021-10-06T10:52:16+00:00
https://labs.gwendragon.de/blog/Computer/Linux/Tools/china-dauerhaft-mit-iptables-blocken
jchrissysadmin iptables securityhttps://pinboard.in/https://pinboard.in/u:jchris/b:9b2cacae4829/How To Find Files Based On their Permissions In Linux - OSTechNix2021-05-20T08:38:34+00:00
https://ostechnix.com/find-files-based-permissions/
jchrisknowhow sysadmin unixhttps://pinboard.in/https://pinboard.in/u:jchris/b:efa0ce2af5a5/Common SSL Certificate Errors and How to Fix Them2021-05-18T09:48:05+00:00
https://www.globalsign.com/en/blog/top-ssl-certificate-errors-and-solutions
jchrisopenssl sysadmin webmasterhttps://pinboard.in/https://pinboard.in/u:jchris/b:4acdc7b96490/File Integrity Assessment Via SSH2021-04-10T13:16:57+00:00
http://www.deer-run.com/~hal/sysadmin/FIA-via-SSH.html
jchrissysadmin securityhttps://pinboard.in/https://pinboard.in/u:jchris/b:cca3c4185036/Linux Password Enforcement with PAM2021-04-10T13:13:42+00:00
http://www.deer-run.com/~hal/linux_passwords_pam.html
jchrissysadmin securityhttps://pinboard.in/https://pinboard.in/u:jchris/b:dd324b4c1c7b/Setup Postfix to Relay Mail for Specific Domains or Users - Mad9Scientist.com2021-02-06T21:51:16+00:00
https://mad9scientist.com/postfix-relay-mail-specific-domains/
jchrispostfix sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:61275aab7146/How To Install Perl Modules On Linux - OSTechNix2021-01-07T12:23:13+00:00
https://ostechnix.com/how-to-install-perl-modules-on-linux/
jchrisperl sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:acebf1938100/Setting up a Linux Workstation for Software Development · tkainrad2020-12-11T20:42:26+00:00
https://tkainrad.dev/posts/setting-up-linux-workstation/
jchrishowto sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:b20d09731d2b/Linux Software Raid: Enlarge Raid Array of Hetzner EX41 - Christosoft Blog2020-11-11T19:29:02+00:00
https://blog.christosoft.de/2016/08/linux-software-raid-enlarge-hetzner-ex41/
jchrishetzner linux sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:03d7c3e83967/Installing Debian 10 Buster with Encrypted LVM and btrfs Subvolumes - paritybit.ca2020-10-17T17:36:30+00:00
https://www.paritybit.ca/blog/debian-with-btrfs
jchrisdebian luks sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:832c329167fa/Installing & Recovering Ubuntu Server 14.04 using BTRFS – it's notes2020-10-07T06:05:37+00:00
https://blog.cadena-it.com/linux-tips-how-to/installing-recovering-ubuntu-server-14-04-using-btrfs/
jchrisfilesystem sysadminhttps://pinboard.in/u:jchris/b:5292ab8d093f/Postfix After-Queue Content Filter2020-06-04T06:33:09+00:00
http://www.postfix.org/FILTER_README.html
jchrisemail postfix sysadminhttps://pinboard.in/u:jchris/b:673ac46fa55b/A Beginners Guide to Self Hosting – FuzzyTek2020-05-25T07:39:35+00:00
https://fuzzytek.ml/linux/selfhostingguide/
jchrissysadmin @todo @u2020https://pinboard.in/https://pinboard.in/u:jchris/b:f5dd0aaaa7bf/An introduction to DNS troubleshooting | Enable Sysadmin2020-04-30T18:42:14+00:00
https://www.redhat.com/sysadmin/intro-dns-troubleshooting
jchrisbind dns sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:c89b52c38176/Aaron Toponce : Install ZFS on Debian GNU/Linux2020-04-21T20:11:30+00:00
https://pthree.org/2012/04/17/install-zfs-on-debian-gnulinux/
jchrisfilesystem howto sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:4bbea8f933c4/How you should set up a full-disk-encryption passphrase on a laptop2020-02-11T07:23:59+00:00
http://canonical.org/~kragen/cryptsetup
jchrisdebian security sysadminhttps://pinboard.in/u:jchris/b:d4915b67a7a2/Checksums in Storage Systems and Why You Should Care - Quobyte Blog2019-12-18T07:05:31+00:00
https://www.quobyte.com/blog/2018/05/10/checksums-in-storage-systems-and-why-you-should-care/
jchrischecksum storage sysadminhttps://pinboard.in/u:jchris/b:17e175b7c433/Installation workarounds for a corrupt BIOS: GRUB Rescue and removing the hard drive solution – Dragon vs Linux2019-12-05T14:09:31+00:00
https://dragonvslinux.wordpress.com/2018/01/30/installation-workarounds-for-a-corrupt-bios-grub-rescue-and-removing-the-hard-drive-solution/
jchrislinux grub howto sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:993f5c0254a1/VLANs for sysadmins: The basics | Enable Sysadmin2019-11-14T12:39:28+00:00
https://www.redhat.com/sysadmin/vlans-sysadmins-basics
jchrisnetworking sysadmin knowhowhttps://pinboard.in/https://pinboard.in/u:jchris/b:ecb260c0995f/SSL Configuration2019-11-09T11:06:29+00:00
https://eatabrick.org/20140409_heartbleed.html
jchrisSSL sysadmin webmaster configurationhttps://pinboard.in/u:jchris/b:a218de8e3468/OpenWrt Project: Wi-Fi configuration2019-11-03T08:15:09+00:00
https://openwrt.org/docs/guide-user/network/wifi/start
jchrisopenwrt wifi howto sysadminhttps://pinboard.in/u:jchris/b:bec10c5b8556/WiFiAnalyzer | Android application to analyze WiFi signals.2019-11-03T07:57:17+00:00
https://vremsoftwaredevelopment.github.io/WiFiAnalyzer/
jchrisandroid app wifi sysadminhttps://pinboard.in/u:jchris/b:60ea3678bcb5/Htop Explained2019-11-01T07:23:34+00:00
https://peteris.rocks/blog/htop/
jchrislinux performance reference sysadminhttps://pinboard.in/u:jchris/b:24ff4c30e70f/System verschlüsseln › Wiki › ubuntuusers.de2019-10-31T06:55:49+00:00
https://wiki.ubuntuusers.de/System_verschl%C3%BCsseln/
jchrissysadmin encryption howtohttps://pinboard.in/u:jchris/b:83b576c4391b/Linux Tipps & Tricks: Installation eines vollverschlüsselten Debian/Devuan Systems (www.linux-praktiker.de)2019-10-31T06:37:08+00:00
http://www.linux-praktiker.de/html/deutsch/tipps/installation-debian.htm
jchrishowto encryption linux sysadminhttps://pinboard.in/u:jchris/b:58ba54a6a41f/Chris's Wiki :: blog/linux/ReplacingNetstatNotBad2019-08-04T15:47:50+00:00
https://utcc.utoronto.ca/~cks/space/blog/linux/ReplacingNetstatNotBad
jchrislinux networking ip sysadmin @motoxhttps://pinboard.in/u:jchris/b:24e3b55bd5f3/Out-of-Office Messages are a Security Risk - The Lone Sysadmin2019-02-19T12:26:54+00:00
https://lonesysadmin.net/2019/02/03/out-of-office-messages-are-a-security-risk/
jchrisemail security sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:ea006d65788b/GitHub - StreisandEffect/streisand: Streisand sets up a new server running your choice of WireGuard, OpenConnect, OpenSSH, OpenVPN, Shadowsocks, sslh, Stunnel, or a Tor bridge. It also generates custom instructions for all of these services. At the end of2019-02-11T08:54:28+00:00
https://github.com/StreisandEffect/streisand
jchrisgithub privacy security sysadmin vpnhttps://pinboard.in/https://pinboard.in/u:jchris/b:2f71cd3814c3/A system administrator's guide to getting started with Ansible - FAST!2018-08-14T18:09:27+00:00
https://www.redhat.com/en/blog/system-administrators-guide-getting-started-ansible-fast
jchrisansible sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:124223dc2f5b/Back to basics: What sysadmins must know about logging and monitoring | HPE2018-06-01T19:40:57+00:00
https://www.hpe.com/us/en/insights/articles/back-to-basics-what-sysadmins-must-know-about-logging-and-monitoring-1805.html
jchriscontainer linux sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:23ad2b23089f/Command Line Mac: How to find out which files were installed with a Mac package2018-05-20T20:04:59+00:00
http://commandlinemac.blogspot.de/2008/12/how-to-find-out-which-files-were.html
jchrisosx sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:64330c6f2227/ss command: Display Linux TCP / UDP Network/Socket Information - nixCraft2018-05-08T20:10:45+00:00
https://www.cyberciti.biz/tips/linux-investigate-sockets-network-connections.html
jchrislinux networking sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:6791f21bf09b/SFTP mit Key-Authentication auf (gehosteten) Linux-Servern für Web-Entwickler mit unterschiedlichen Privilegien – II | Linux-Blog – Dr. Mönchmeyer / anracon – Augsburg2018-04-26T15:50:03+00:00
https://linux-blog.anracom.com/2017/02/10/sftp-mit-key-authentication-auf-gehosteten-linux-servern-fuer-web-entwickler-mit-unterschiedlichen-privilegien-ii/
jchrisssh security sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:1e72737dfcb3/An introduction to Libral, a systems management library for Linux | Opensource.com2018-04-25T06:43:05+00:00
https://opensource.com/article/17/5/intro-libral-systems-management-library-linux
jchrislinux sysadmin managementhttps://pinboard.in/u:jchris/b:99194f0d3954/Using Ansible for deploying serverless applications | Opensource.com2018-04-07T19:39:18+00:00
https://opensource.com/article/17/8/ansible-serverless-applications
jchrisansible sysadmin opensource serverhttps://pinboard.in/u:jchris/b:ee47c3ebfa9c/Linux: Verschlüsselte und komprimierte Backups auf DVD | Das Rootserver-Experiment2018-02-18T18:56:09+00:00
http://blog.rootserverexperiment.de/2009/02/04/verschlusselte-komprimierte-dvd-backups-unter-linux/
jchrisencryption filesystem linux sysadmin @goodiehttps://pinboard.in/https://pinboard.in/u:jchris/b:e81045ce2c86/OSX: Changing Hibernation mode — EtherealMind2018-02-18T13:40:20+00:00
http://etherealmind.com/osx-hibernate-mode/
jchrismac osx sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:f2ab27562c51/IP2Location™ IP-Country Database [DB1] | IP2Location.com2018-02-11T17:02:48+00:00
https://www.ip2location.com/databases/db1-ip-country
jchrisdatabase ip networking sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:af21f9d7397d/Blockchains for Immutable Infrastructure – Jascha Is ME2018-02-03T19:26:07+00:00
https://jascha.me/2018/01/07/blockchains-for-immutable-infrastructure/
jchrisblockchain sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:661c5a2a03ae/In defence of swap: common misconceptions2018-01-21T18:58:38+00:00
https://chrisdown.name/2018/01/02/in-defence-of-swap.html
jchrislinux performance sysadmin knowhow tuninghttps://pinboard.in/u:jchris/b:7ce3a9f7167c/Securing the Linux filesystem with Tripwire | Opensource.com2018-01-20T09:01:01+00:00
https://opensource.com/article/18/1/securing-linux-filesystem-tripwire
jchris2atis linux security sysadminhttps://pinboard.in/u:jchris/b:d0ebe1cb06a2/Dropbear SSH2018-01-17T21:27:05+00:00
http://matt.ucc.asn.au/dropbear/dropbear.html
jchrislinux security ssh sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:5b5d6acb33b5/AutoIt - AutoIt2018-01-17T12:32:24+00:00
https://www.autoitscript.com/site/autoit/
jchrisscripting sysadmin windowshttps://pinboard.in/https://pinboard.in/u:jchris/b:9357dec3e20a/Managing passwords and security on your Linux server | Opensource.com2018-01-16T05:43:44+00:00
https://opensource.com/business/16/6/managing-passwords-security-linux
jchrislinux sysadmin security 2atishttps://pinboard.in/u:jchris/b:fb1e30636b4b/How to upgrade Debian 8 Jessie to Debian 9 Stretch - LinuxConfig.org2018-01-11T21:16:22+00:00
https://linuxconfig.org/how-to-upgrade-debian-8-jessie-to-debian-9-stretch
jchrisdebian howto linux sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:018c7108835f/WiFi Speed Test - Android Apps on Google Play2017-12-24T13:46:16+00:00
https://play.google.com/store/apps/details?id=com.pzolee.android.localwifispeedtester
jchrisLocation) or the app won't work properly. This is not required for the app, this is a problem in android 6.0 (without it the app won't see the networks).
This app will not be useful unless you have a second phone or computer to use it as server!
You can download the server application (wifi_speed_test.exe/py) to your computer from here: https://bitbucket.org/pzolee/tcpserver/downloads (for wifi_speed_text.py needs Python 2.x). If you have firewall enabled on the server, add 1212 as enabled port or turn off firewall during the test.
Highlighted functions:
* Test Wi-Fi upload and download speed
* UDP speed test
* FTP server speed test
* Samba server speed test
* Tethering and hotspot support (you can test even your usb tethering)
Important: This is not an Internet speed test app!
This application will measure the speed of your local network,
live Internet connection is not required.
This is a free, ad-supported application. Donation will remove ads.
You can donate by buying the WiFi Speed Test Pro - make a donation from the application or visit the Google Play site of WiFi Speed Test Pro: https://play.google.com/store/apps/details?id=com.pzolee.android.localwifispeedtesterpro
Useful links:
Server application for computers: https://bitbucket.org/pzolee/tcpserver/downloads/
Documentation: http://pzoleeblogen.wordpress.com/2013/11/26/wifi-speed-test-for-android-how-to
Online demo about the usage: http://pzoleeblogen.wordpress.com/2014/03/09/wifi-speed-test-for-android-live-demo
]]>android app network sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:c043c4128523/The Linux commands you should NEVER use | HPE™2017-12-18T21:53:26+00:00
https://www.hpe.com/us/en/insights/articles/the-linux-commands-you-should-never-use-1712.html
jchrislinux sysadmin securityhttps://pinboard.in/u:jchris/b:f2308c5c3b95/10 open source tools for your sysadmin toolbox | Opensource.com2017-12-17T09:18:36+00:00
https://opensource.com/16/12/yearbook-10-open-source-sysadmin-tools
jchrislinux sysadmin tools windowshttps://pinboard.in/u:jchris/b:bee41920c3a9/DDoS Guide Relaunch: This Halloween, Keep Your Site Safe from Zombie Attacks | Electronic Frontier Foundation2017-10-31T19:34:27+00:00
https://www.eff.org/deeplinks/2017/10/ddos-guide-relaunch-halloween-keep-your-site-safe-zombie-attacks
jchrissysadmin securityhttps://pinboard.in/u:jchris/b:8f490526519a/Google will ohne Intels ME und ohne UEFI booten2017-10-28T15:25:27+00:00
https://plus.google.com/+KristianK%C3%B6hntopp/posts/Nx88hvKtN16
jchrisgoogle security sysadmin UEFI boot intelhttps://pinboard.in/u:jchris/b:b6706e7be524/Dropbear SSH2017-10-25T10:11:29+00:00
https://matt.ucc.asn.au/dropbear/dropbear.html
jchrisdropbear linux software ssh boot sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:eb31fcded818/Running Your Own Open Source Email Server2017-10-08T19:01:53+00:00
https://code.tutsplus.com/tutorials/running-your-own-open-source-email-server--cms-23004
jchrisemail server sysadmin howtohttps://pinboard.in/https://pinboard.in/u:jchris/b:42415627791d/Build your own DNS name server on Linux | Opensource.com2017-10-06T05:58:58+00:00
https://opensource.com/article/17/4/build-your-own-name-server
jchrisdns bind howto sysadminhttps://pinboard.in/u:jchris/b:24cf8b5c0ab8/Alternatives to top and htop2017-09-26T05:46:53+00:00
https://haydenjames.io/alternatives-top-htop/?_utm_source=1-2-2
jchrislinux tools sysadminhttps://pinboard.in/u:jchris/b:78792fd13e75/Client-Zertifikate als sicherer Login-Ersatz? | PHP Gangsta - Der PHP Blog mit Praxisbezug2017-09-19T20:27:22+00:00
https://www.phpgangsta.de/client-zertifikate-als-sicherer-login-ersatz
jchris server.cert.csr openssl rsa -in privkey.pem -out server.cert.key openssl x509 -in server.cert.csr -out server.cert.crt -req -signkey server.cert.key -days 365 ]]>certificate encryption https sysadmin webmasterhttps://pinboard.in/https://pinboard.in/u:jchris/b:fcec0e8db16c/Tricks to do client certificate authentications behind a reverse proxy2017-09-19T18:10:30+00:00
http://www.zeitoun.net/articles/client-certificate-x509-authentication-behind-reverse-proxy/start
jchrisapache certificate proxy sysadmin SSLhttps://pinboard.in/https://pinboard.in/u:jchris/b:374ca4e209bf/How To: Linux Hard Disk Encryption With LUKS [ cryptsetup Command ] – nixCraft2017-09-19T17:31:44+00:00
https://www.cyberciti.biz/hardware/howto-linux-hard-disk-encryption-with-luks-cryptsetup-command/
jchrisencryption luks sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:acdba544b81a/Boot time unlocking of encrypted disk via IPv6 SSH (Debian 8 Jessie) - danrl.com2017-09-15T09:00:54+00:00
https://danrl.com/blog/2015/debian-jessi-ssh-fde-unlock/
jchrisboot debian linux encryption howto sysadmin dropbearhttps://pinboard.in/https://pinboard.in/u:jchris/b:03f0e58087ec/Encrypted Btrfs for Lazy Road Warriors' laptops – /techblog2017-09-14T16:47:26+00:00
https://www.redpill-linpro.com/techblog/2016/08/12/btrfs-and-encryption.html
jchrisbtrfs debian encryption howto @goodie sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:5e7480723586/Resizing Encrypted Filesystems2017-09-13T15:10:39+00:00
https://debian-administration.org/article/536/Resizing_Encrypted_Filesystems
jchrisencryption linux filesystem sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:a078ecefedc6/How To Migrate to a full encrypted LVM system2017-09-13T15:09:47+00:00
https://debian-administration.org/article/577/How_To_Migrate_to_a_full_encrypted_LVM_system
jchrisencryption lvm sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:9e024ff1d1b7/A couple of tricks with the secure shell2017-09-13T13:58:56+00:00
https://debian-administration.org/article/438/A_couple_of_tricks_with_the_secure_shell
jchrisdebian ssh tricks sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:d7ad8e2310fe/Unattended, Encrypted, Incremental Network Backups: Part 12017-09-13T13:45:53+00:00
https://debian-administration.org/article/209/Unattended_Encrypted_Incremental_Network_Backups_Part_1
jchrisbackup gnupg sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:aca641499c92/Easily forwarding arbitrary TCP connections with rinetd2017-09-13T10:24:34+00:00
https://debian-administration.org/article/601/Easily_forwarding_arbitrary_TCP_connections_with_rinetd
jchrisnetworking sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:f92d8d13ff15/Look before you leap into Disk Encryption2017-09-13T10:18:09+00:00
https://debian-administration.org/article/692/Look_before_you_leap_into_Disk_Encryption
jchrisencryption sysadmin lukshttps://pinboard.in/https://pinboard.in/u:jchris/b:1fda49133101/Modify Your Partitions With GParted Without Losing Data2017-09-13T07:09:16+00:00
https://www.howtoforge.com/partitioning_with_gparted
jchrislinux filesystem knowhow sysadminhttps://pinboard.in/u:jchris/b:8c5ef9112041/nftables - Debian Wiki2017-09-12T12:49:45+00:00
https://wiki.debian.org/nftables
jchrisdebian iptables nftables stretch sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:c2550c8d8a22/New in Debian stable Stretch: nftables2017-09-12T12:49:06+00:00
http://ral-arturo.org/2017/05/05/debian-stretch-stable-nftables.html
jchrisdebian iptables nftables stretch sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:6077c1d11e13/Getting Started with nftables on Debian Linux 9 Stretch - Linux News Site2017-09-12T12:48:17+00:00
https://www.linuxnewssite.com/getting-started-with-nftables-on-debian-linux-9-stretch-07052017506.html
jchrisdebian iptables nftables stretch sysadminhttps://pinboard.in/https://pinboard.in/u:jchris/b:b5ac23a73f51/