Christopher Juckins

SysAdmin Tips, Tricks and other Software Tools

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start [2020/04/12 08:43] juckinsstart [2024/01/17 17:30] (current) juckins
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 \\ \\
 [[Allowing passive FTP connections]]\\ [[Allowing passive FTP connections]]\\
 +[[.htaccess files|Apache .htaccess but allow from IP address]]\\
 [[awk examples]]\\ [[awk examples]]\\
 [[Bash configs: .bashrc vs .bash_profile]]\\ [[Bash configs: .bashrc vs .bash_profile]]\\
Line 8: Line 9:
 [[Burn CD from .iso image]]\\ [[Burn CD from .iso image]]\\
 [[Canon LiDE 70 scanner in Linux]]\\ [[Canon LiDE 70 scanner in Linux]]\\
-[[CentOS PHP5.2 upgrade]]\\ 
-[[CentOS PHP5.5 upgrade]]\\ 
-[[CentOS PHP5.6 upgrade]]\\ 
-[[CentOS PHP7.2 upgrade]]\\ 
-[[CentOS PHP7.4 upgrade]]\\ 
 [[Checking network speed]]\\ [[Checking network speed]]\\
 [[Combine / Merge PDF files]]\\ [[Combine / Merge PDF files]]\\
Line 23: Line 19:
 [[Distorted IE Images / Dell Laptop 1920x1200]]\\ [[Distorted IE Images / Dell Laptop 1920x1200]]\\
 [[Dokuwiki Links|Dokuwiki Reference Links]] \\ [[Dokuwiki Links|Dokuwiki Reference Links]] \\
 +[[Dynamic DNS and LetsEncrypt]]\\
 [[Enigmail Setup and GnuPG keys]]\\ [[Enigmail Setup and GnuPG keys]]\\
 [[/etc/passwd and /etc/shadow Error Messages]]\\ [[/etc/passwd and /etc/shadow Error Messages]]\\
Line 33: Line 30:
 [[Force HTTPS/SSL by directory with .htaccess]]\\ [[Force HTTPS/SSL by directory with .htaccess]]\\
 [[Force HTTPS/SSL by directory with httpd.conf]]\\ [[Force HTTPS/SSL by directory with httpd.conf]]\\
 +[[GCC Update]]\\
 [[Gmail encryption|Gmail encryption and other tips]]\\ [[Gmail encryption|Gmail encryption and other tips]]\\
 [[Google Analytics Tips]]\\ [[Google Analytics Tips]]\\
Line 41: Line 39:
 [[High CPU Usage]]\\ [[High CPU Usage]]\\
 [[How to restart a print queue]]\\ [[How to restart a print queue]]\\
-[[.htaccess files]]\\ 
 [[HTTP server fails to start]]\\ [[HTTP server fails to start]]\\
 [[HTTPS Server Configuration]]\\ [[HTTPS Server Configuration]]\\
Line 51: Line 48:
 [[Memory testing]]\\ [[Memory testing]]\\
 [[Memory usage|Monitoring Memory Usage]]\\ [[Memory usage|Monitoring Memory Usage]]\\
 +[[Monitoring Network Performance]]\\
 [[Mount a USB flash drive]]\\ [[Mount a USB flash drive]]\\
 [[Mount CDROM]]\\ [[Mount CDROM]]\\
Line 60: Line 58:
 [[NSS Tips]]\\ [[NSS Tips]]\\
 [[NTP Tips]]\\ [[NTP Tips]]\\
-[[NVIDIA Settings]]\\+[[NVIDIA Settings|NVIDIA Drivers and Settings]]\\
 [[PHP Tricks]]\\ [[PHP Tricks]]\\
 +[[CentOS PHP5.6 upgrade|PHP 5.6 upgrade - CentOS]]\\
 +[[CentOS PHP7.2 upgrade|PHP 7.2 upgrade - CentOS]]\\
 +[[CentOS PHP7.4 upgrade|PHP 7.4 upgrade - CentOS]]\\
 +[[CentOS PHP8.1 upgrade|PHP 8.1 upgrade - Rocky Linux 8]]\\
 +[[PHP8.1 upgrade|PHP 8.1 upgrade - Rocky Linux 9]]\\
 +[[PHP8.2 on CentOS 7|PHP 8.2 upgrade - CentOS 7]]\\
 +[[PHP8.2 on Rocky Linux 8|PHP 8.2 upgrade - Rocky Linux 9]]\\
 +[[PHP8.3 on Rocky Linux 9|PHP 8.3 upgrade - Rocky Linux 9]]\\
 +[[Public IP]]\\
 [[Querying X Windows Screen Resolution Settings]]\\ [[Querying X Windows Screen Resolution Settings]]\\
 [[Recommended network card for linux]]\\ [[Recommended network card for linux]]\\
Line 71: Line 78:
 [[rsync ignore hidden files]]\\ [[rsync ignore hidden files]]\\
 [[Sanitizing PHP for malicious user input]]\\ [[Sanitizing PHP for malicious user input]]\\
 +[[Self-signed SSL certificates]]\\
 [[SELinux Configuration]]\\ [[SELinux Configuration]]\\
 +[[Sequence of Numbers|seq to print a sequence of numbers]]\\
 [[Setting System Clock to UTC/GMT Timezone]]\\ [[Setting System Clock to UTC/GMT Timezone]]\\
 [[Soft Link Trick]]\\ [[Soft Link Trick]]\\
Line 77: Line 86:
 [[SSH disable reverse DNS]]\\ [[SSH disable reverse DNS]]\\
 [[ssh_exchange_identification error]]\\ [[ssh_exchange_identification error]]\\
 +[[SSH authentication using only password, ignoring keys]]\\
 [[SSH Login Banners]]\\ [[SSH Login Banners]]\\
 [[SSH without a password using public/private keys]]\\ [[SSH without a password using public/private keys]]\\
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 [[VPN Client]]\\ [[VPN Client]]\\
 [[VPN Notes]]\\ [[VPN Notes]]\\
 +[[Xfce Notes]]\\
 [[Yum won't update (unsubscriptable object)]]\\ [[Yum won't update (unsubscriptable object)]]\\
 \\ \\
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 \\ \\
 [[Best Practices]]\\ [[Best Practices]]\\
-[[Install/Configure CPAN|CPAN (Perl) Repository Tips]]\\+[[Install/Configure CPAN|Using CPAN]]\\
 [[Local Perl Modules]]\\ [[Local Perl Modules]]\\
 [[Manipulating Date Strings]]\\ [[Manipulating Date Strings]]\\
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 [[Remove newlines]]\\ [[Remove newlines]]\\
 [[Replace String Inline]]\\ [[Replace String Inline]]\\
 +[[Sending email]]\\
 \\ \\
 **Linux Opensource and other Software Tools**\\ **Linux Opensource and other Software Tools**\\
Line 107: Line 119:
 [[Adding a second hard drive]]\\ [[Adding a second hard drive]]\\
 [[Bootable USB drive from .iso file in Linux]]\\ [[Bootable USB drive from .iso file in Linux]]\\
-[[CentOS 6 Migration Notes]]\\ 
-[[CentOS 7 Migration Notes]]\\ 
 [[ClamAV Antivirus]]\\ [[ClamAV Antivirus]]\\
 [[Dell BIOS updates when running Linux]]\\ [[Dell BIOS updates when running Linux]]\\
Line 119: Line 129:
 [[GIMP tricks]]\\ [[GIMP tricks]]\\
 [[Git Notes]]\\ [[Git Notes]]\\
-[[GMail as a Relay on Linux|GMail as a Relay on Linux (best solution)]]\\ +[[GMail as a Relay on Linux|GMail as a Relay on Linux with Postfix (non 2-factor auth)]]\\ 
-[[GMail on Linux with SSMTP|GMail on Linux with SSMTP (stopped working)]]\\ +[[GMail as a Relay on Linux CENTOS7|GMail as a Relay on Linux CENTOS7 (working for 2-factor auth)]]\\ 
-[[GMail on Linux with MSMTP]]\\+[[GMail as a Relay on Linux CENTOS8|GMail as a Relay on Linux Ubuntu 20.04 LTS and CENTOS8 (working for 2-factor auth)]]\\ 
 +[[GMail on Linux with SSMTP|GMail on Linux with SSMTP (needs more testing)]]\\ 
 +[[GMail on Linux with MSMTP|Gmail on Linux with MSMTP (not well tested nor used)]]\\
 [[GParted - partition editor]]\\ [[GParted - partition editor]]\\
 [[grep tricks]]\\ [[grep tricks]]\\
Line 128: Line 140:
 [[Linux Backups]]\\ [[Linux Backups]]\\
 [[MATE Desktop Notes]]\\ [[MATE Desktop Notes]]\\
 +[[CentOS 6 Migration Notes|Migration Notes - CentOS 6]]\\
 +[[CentOS 7 Migration Notes|Migration Notes - CentOS 7]]\\
 +[[CentOS 8 Migration Notes|Migration Notes - CentOS 8]]\\
 +[[Rocky Linux 8 Migration Notes|Migration Notes - Rocky Linux 8]]\\
 +[[Rocky Linux 9 Migration Notes|Migration Notes - Rocky Linux 9]]\\
 +[[Rocky Linux 9 Migration Checklist|Migration Checklist - Rocky Linux 9]]\\
 [[Mirroring with lftp|lftp to mirror websites]]\\ [[Mirroring with lftp|lftp to mirror websites]]\\
 [[Mirror websites with wget]]\\ [[Mirror websites with wget]]\\
 [[Nagios Config Commands]] \\ [[Nagios Config Commands]] \\
 [[Mantis Tips]]\\ [[Mantis Tips]]\\
-[[MySQL Time/Date Tips]]\\+[[MySQL Time/Date Tips|MySQL Tips]]\\
 [[NoMachine (NX) Remote Access for Unix/Linux|NoMachine (NX) Remote Access for Unix/Linux v3]]\\ [[NoMachine (NX) Remote Access for Unix/Linux|NoMachine (NX) Remote Access for Unix/Linux v3]]\\
 [[NoMachine (NX) Remote Access for Unix/Linux v4]]\\ [[NoMachine (NX) Remote Access for Unix/Linux v4]]\\
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 [[postfix tips]]\\ [[postfix tips]]\\
 [[PostgreSQL tips]]\\ [[PostgreSQL tips]]\\
-[[Python notes]]\\+[[Python code snippets|Python coding notes]]\\ 
 +[[Python virtual environments]]\\ 
 +[[Python notes|Python install notes]]\\ 
 +[[Python notes (work)]]\\ 
 +[[Python alternative upgrade notes]]\\
 [[QGIS]]\\ [[QGIS]]\\
 [[Red Hat 6 Package Manifest]]\\ [[Red Hat 6 Package Manifest]]\\
 [[Red Hat 7 Notes]]\\ [[Red Hat 7 Notes]]\\
 [[Remote Desktop tricks]]\\ [[Remote Desktop tricks]]\\
 +[[Repair XFS Filesystem]]\\
 [[Restore Data and Files from Corrupted Disks]]\\ [[Restore Data and Files from Corrupted Disks]]\\
 [[Samba File Sharing]]\\ [[Samba File Sharing]]\\
Line 156: Line 179:
 [[Clean up HTML Markup with "Tidy" and Perl|Tidy to clean up HTML Markup]] \\ [[Clean up HTML Markup with "Tidy" and Perl|Tidy to clean up HTML Markup]] \\
 [[Ubiquiti UniFi Access Point Notes]]\\ [[Ubiquiti UniFi Access Point Notes]]\\
-[[install_unifi_on_ubuntu|Ubiquiti UniFi controller on Ubuntu]]\\ +[[install_unifi_on_ubuntu|Ubiquiti UniFi controller - running on Ubuntu]]\\ 
-[[install_unifi_on_centos|Ubiquiti UniFi controller on CentOS]]\\ +[[install_unifi_on_centos|Ubiquiti UniFi controller - running on CentOS]]\\ 
-[[Ubuntu Notes]]\\+[[Ubiquiti UniFi controller - Easy Installation]]\\ 
 +[[Ubiquiti UniFi controller - Migrating to new server]]\\ 
 +[[Ubiquiti EdgeRouter 6P Notes]]\\
 [[VirtualBox General Notes]]\\ [[VirtualBox General Notes]]\\
-[[Android on VirtualBox|VirtualBox running Android Notes]]\\ +[[Android on VirtualBox|VirtualBox running Android]]\\ 
-[[VirtualBox Notes|VirtualBox running CentOS 6 Notes]]\\ +[[VirtualBox Notes|VirtualBox running CentOS 6]]\\ 
-[[VirtualBox for CentOS 7 Notes|VirtualBox running CentOS 7 Notes]]\\ +[[VirtualBox for CentOS 7 Notes|VirtualBox running CentOS 7]]\\ 
-[[VirtualBox for CentOS 8 Notes|VirtualBox running CentOS 8 Notes]]\\ +[[VirtualBox for CentOS 7 to CentOS 8 Upgrade in Place]]\\ 
-[[VirtualBox Notes for Fedora 17|VirtualBox running Fedora Notes]]\\+[[VirtualBox for CentOS 8 Notes|VirtualBox running CentOS 8]]\\ 
 +[[VirtualBox for CentOS Stream Notes|VirtualBox running CentOS 8 Stream]]\\ 
 +[[VirtualBox Notes for Fedora 17|VirtualBox running Fedora]]\\
 [[VirtualBox Notes for RHEL8|VirtualBox running RHEL8]]\\ [[VirtualBox Notes for RHEL8|VirtualBox running RHEL8]]\\
-[[VirtualBox for Windows 10 Notes|VirtualBox running Windows 10 RC Notes]]\\+[[VirtualBox Notes for RHEL9|VirtualBox running RHEL9]]\\ 
 +[[VirtualBox running Rocky Linux 8]]\\ 
 +[[VirtualBox running Rocky Linux 9]]\\ 
 +[[Ubuntu Notes|VirtualBox running Ubuntu 14]]\\ 
 +[[Ubuntu 16 Notes|VirtualBox running Ubuntu 16]]\\ 
 +[[Ubuntu 18 Notes|VirtualBox running Ubuntu 18]]\\ 
 +[[Ubuntu 20 Notes|VirtualBox running Ubuntu 20]]\\ 
 +[[Ubuntu 22 Notes|VirtualBox running Ubuntu 22]]\\ 
 +[[VirtualBox for Windows 10 Notes|VirtualBox running Windows 10 RC]]\\
 [[Xming X Server for Windows]]\\ [[Xming X Server for Windows]]\\
 \\ \\
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 [[Make a free Public WiFi Hotspot]]\\ [[Make a free Public WiFi Hotspot]]\\
 [[Microsoft Excel Tips]]\\ [[Microsoft Excel Tips]]\\
-[[MS Word 2007 default spacing]]\\+[[MS Word 2007 default spacing|Microsoft Word 2007 default spacing]]\\
 [[NT Backup]]\\ [[NT Backup]]\\
 [[Share USB Drive on home network]]\\ [[Share USB Drive on home network]]\\
Line 196: Line 231:
 [[Windows 10 Notes]]\\ [[Windows 10 Notes]]\\
 [[Windows Folders & Quicklaunch Menu]]\\ [[Windows Folders & Quicklaunch Menu]]\\
 +[[Windows ISO]]\\
 [[Windows Update Very Slow]]\\ [[Windows Update Very Slow]]\\
 +[[Windows-only Programs]]\\
 [[WinSCP - Passwordless Login]]\\ [[WinSCP - Passwordless Login]]\\
 \\ \\
Line 205: Line 242:
 Websites - VEGA [[https://subgraph.com/vega/index.en.html]]\\ Websites - VEGA [[https://subgraph.com/vega/index.en.html]]\\
 Websites - ZAP [[https://www.owasp.org/index.php/ZAP]]\\ Websites - ZAP [[https://www.owasp.org/index.php/ZAP]]\\
 +Websites - Pentest Tools [[https://pentest-tools.com/website-vulnerability-scanning/xss-scanner-online]]\\
 \\ \\
 **IT Shopping Links**\\ **IT Shopping Links**\\
 \\ \\
 [[http://www.monoprice.com]] \\ [[http://www.monoprice.com]] \\
-[[http://www.pricewatch.com]] \\+[[https://pcpartpicker.com/]] \\
 \\ \\
 **Other Topics** **Other Topics**
start.1586695409.txt.gz · Last modified: 2020/04/12 08:43 by juckins