# Web Development

**URL:** https://community.unix.com/c/applications/web-dev/73.md

[Latest](https://community.unix.com/latest.md) · [Categories](https://community.unix.com/categories.md)

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## [About the Web Development category](https://community.unix.com/t/about-the-web-development-category/138112)

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**Author:** [@system](https://community.unix.com/u/system)\
**Replies:** 0

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Javascript, Javascript libs and toolkits, LAMP, Apache, MySQL, HTML, and other web coding posts.

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## [SysAdmin x DevOps project ideas for 2026 on-premises setup?](https://community.unix.com/t/sysadmin-x-devops-project-ideas-for-2026-on-premises-setup/397421)

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**Author:** [@Ihattaren](https://community.unix.com/u/Ihattaren)\
**Replies:** 1\
**Last updated:** [January 27, 2026, 2:18pm UTC](https://community.unix.com/t/sysadmin-x-devops-project-ideas-for-2026-on-premises-setup/397421 "2026-01-27T14:18:28Z")

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This is what chatgpt gave to me. :hammer\_and\_wrench: Project 1 — Production Linux Server Setup Goal: Turn a fresh Linux VM into a production-ready server Do this: Create a non-root sudo user Disable password SSH,…

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## [Postmortem: Russian Botnet DDoS and the Ubuntu 18 Collapse](https://community.unix.com/t/postmortem-russian-botnet-ddos-and-the-ubuntu-18-collapse/397382)

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**Author:** [@Neo](https://community.unix.com/u/Neo)\
**Replies:** 1\
**Last updated:** [December 7, 2025, 7:08am UTC](https://community.unix.com/t/postmortem-russian-botnet-ddos-and-the-ubuntu-18-collapse/397382 "2025-12-07T07:08:28Z")

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Over two weeks ago this site experienced a severe and prolonged slowdown on the legacy Ubuntu 18 server that hosted both the Discourse community.unix.com forum and the Rails man-pages application. The system became pract…

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## [Rails Console Script - Watch memcache status for Rails App](https://community.unix.com/t/rails-console-script-watch-memcache-status-for-rails-app/397381)

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**Author:** [@Neo](https://community.unix.com/u/Neo)\
**Replies:** 5\
**Last updated:** [December 7, 2025, 7:07am UTC](https://community.unix.com/t/rails-console-script-watch-memcache-status-for-rails-app/397381 "2025-12-07T07:07:35Z")

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Here is a simple script I use to watch the memcached status for a Rails app (the unix.com man-pages Rails app), from the Rails console: Rails console: irb(main):019\* loop do irb(main):020\* s = Rails.cache.stats.values…

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## [Contact Form not displaying as it should](https://community.unix.com/t/contact-form-not-displaying-as-it-should/396749)

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**Author:** [@ignatius](https://community.unix.com/u/ignatius)\
**Replies:** 2\
**Last updated:** [March 27, 2025, 6:34pm UTC](https://community.unix.com/t/contact-form-not-displaying-as-it-should/396749 "2025-03-27T18:34:11Z")

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First of all, kudos on the new web design. Looks good. I have some HTML that i'm trying to incorporate into my web site. It works well. The problem is that I cannot "move" around the web site with the mouse as I once c…

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## [Progress: Squashing and Redirecting Rouge Bots](https://community.unix.com/t/progress-squashing-and-redirecting-rouge-bots/396753)

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**Author:** [@Neo](https://community.unix.com/u/Neo)\
**Replies:** 0\
**Last updated:** [March 25, 2025, 10:28am UTC](https://community.unix.com/t/progress-squashing-and-redirecting-rouge-bots/396753 "2025-03-25T10:28:05Z")

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Well, Hell Yes! :fire: Just a few weeks ago, this Discourse site was getting slammed with around 4 million rogue bot hits per day: Now we’re down to about 10% of that—hovering in the 300K range daily: I wrote a …

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## [MP4 displayed on a web site](https://community.unix.com/t/mp4-displayed-on-a-web-site/396669)

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**Author:** [@ignatius](https://community.unix.com/u/ignatius)\
**Replies:** 2\
**Last updated:** [March 10, 2025, 1:43am UTC](https://community.unix.com/t/mp4-displayed-on-a-web-site/396669 "2025-03-10T01:43:35Z")

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Hi. I have a unique problem. I'm trying to display an MP4 on the background of my website. And I would like to have a telnet client that displays over it. I can load the MP4, and it plays, as expected. The problem is th…

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## [Javascript if statement](https://community.unix.com/t/javascript-if-statement/396335)

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**Author:** [@jgt](https://community.unix.com/u/jgt)\
**Replies:** 4\
**Last updated:** [January 21, 2025, 3:06pm UTC](https://community.unix.com/t/javascript-if-statement/396335 "2025-01-21T15:06:56Z")

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I have a web page that includes the following javascript, but the if statement does not work. I have tried changing the = sign in the if statement to ==, but that causes the EMPL\_MENU to not execute, and also not show an…

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## [HTML/JS that doesn't display properly](https://community.unix.com/t/html-js-that-doesnt-display-properly/396162)

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**Author:** [@ignatius](https://community.unix.com/u/ignatius)\
**Replies:** 5\
**Last updated:** [January 1, 2025, 4:38am UTC](https://community.unix.com/t/html-js-that-doesnt-display-properly/396162 "2025-01-01T04:38:01Z")

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Hi. I have some problematic HTML and/or JS. Here's some JS. \<script\> const links = { link1: 'http://somesite.com', } let currentIframeId; // top left red button to close the full page iframe const closeBtn = docu…

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## [Email solution for self hosted website](https://community.unix.com/t/email-solution-for-self-hosted-website/395218)

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**Author:** [@ziggelflex](https://community.unix.com/u/ziggelflex)\
**Replies:** 8\
**Last updated:** [September 6, 2024, 12:41am UTC](https://community.unix.com/t/email-solution-for-self-hosted-website/395218 "2024-09-06T00:41:28Z")

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Hi, I have a website that at some point in the the near future will have a nodejs backend. I have thought about and most probably will transfer the site to a hosting service VPS. Whether the site is self hosted or paid …

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## [Running dmidecode from PHP script](https://community.unix.com/t/running-dmidecode-from-php-script/394955)

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**Author:** [@crimso](https://community.unix.com/u/crimso)\
**Replies:** 7\
**Last updated:** [August 6, 2024, 4:26pm UTC](https://community.unix.com/t/running-dmidecode-from-php-script/394955 "2024-08-06T16:26:21Z")

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Greetings, Not sure if this is the right place for this but figured I'd start here. I am experimenting with PHP and HTML and I've wrote some code to return specific values when you point a browser at a server. The code …

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## [Json with nested arrays](https://community.unix.com/t/json-with-nested-arrays/394708)

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**Author:** [@ziggelflex](https://community.unix.com/u/ziggelflex)\
**Replies:** 2\
**Last updated:** [July 12, 2024, 7:03pm UTC](https://community.unix.com/t/json-with-nested-arrays/394708 "2024-07-12T19:03:13Z")

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Having a issue with a json file. Can't seem to get JavaScript to render images. If I hard code it it works fine but otherwise no luck. HTML: \<!DOCTYPE html\> \<html lang="en"\> \<head\> \<meta charset="UTF-8" /\> \<m…

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## [Splitting one flex column div into two](https://community.unix.com/t/splitting-one-flex-column-div-into-two/393872)

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**Author:** [@ziggelflex](https://community.unix.com/u/ziggelflex)\
**Replies:** 15\
**Last updated:** [April 20, 2024, 7:08pm UTC](https://community.unix.com/t/splitting-one-flex-column-div-into-two/393872 "2024-04-20T19:08:47Z")

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Hey you guys, I have tried almost everything to get this working! I want to split one child into another two columns see image Here is my code: HTML \<!DOCTYPE html\> \<html lang="en"\> \<head\> \<meta charset="UT…

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## [Javascript: select content of popup window](https://community.unix.com/t/javascript-select-content-of-popup-window/393847)

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**Author:** [@technossomy](https://community.unix.com/u/technossomy)\
**Replies:** 4\
**Last updated:** [April 19, 2024, 12:14pm UTC](https://community.unix.com/t/javascript-select-content-of-popup-window/393847 "2024-04-19T12:14:49Z")

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I have a Leaflet page similar to this one: Quick Start - Leaflet Clicking anywhere on the map yields a popup with the coordinates. For the purposes of creating polygons of my own, I want to have the contents of this pop…

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## [Can't get a div to centre! School boy I know!](https://community.unix.com/t/cant-get-a-div-to-centre-school-boy-i-know/393388)

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**Author:** [@ziggelflex](https://community.unix.com/u/ziggelflex)\
**Replies:** 6\
**Last updated:** [March 1, 2024, 3:01pm UTC](https://community.unix.com/t/cant-get-a-div-to-centre-school-boy-i-know/393388 "2024-03-01T15:01:14Z")

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I have created an example here: HTML \<!DOCTYPE html\> \<html lang="en"\> \<head\> \<meta charset="UTF-8" /\> \<meta name="viewport" content="width=device-width, initial-scale=1.0" /\> \<title\>Document\</title\> \<l…

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## [AH00052: child pid 20470 exit signal Aborted (6)](https://community.unix.com/t/ah00052-child-pid-20470-exit-signal-aborted-6/391674)

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**Author:** [@anandtripathi](https://community.unix.com/u/anandtripathi)\
**Replies:** 7\
**Last updated:** [August 10, 2023, 9:30am UTC](https://community.unix.com/t/ah00052-child-pid-20470-exit-signal-aborted-6/391674 "2023-08-10T09:30:57Z")

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Hi, I have apache http server 2.4.51 installed on my VM running on OEL7. In that apache logs intermittently getting signal abort error which is resulting error 500 for client . Checking in apache error logs can see be…

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## [Can't replace() character in Javascript](https://community.unix.com/t/cant-replace-character-in-javascript/391603)

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**Author:** [@ziggelflex](https://community.unix.com/u/ziggelflex)\
**Replies:** 16\
**Last updated:** [July 30, 2023, 9:47am UTC](https://community.unix.com/t/cant-replace-character-in-javascript/391603 "2023-07-30T09:47:04Z")

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const locUnScr = \[3, 5, 7\]; const lowerTrimArr = \['Blaaaaaa\_Beans', 'Trunked\_Split', 'BoooooooooP\_goat'\] let camCase = \[\]; let mergedArr = \[\[...locUnScr\], \[...lowerTrimArr\]\]; for (const \[i, d\] of \[mergedArr\]) { camC…

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## [Brackets in JS](https://community.unix.com/t/brackets-in-js/391290)

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**Author:** [@ziggelflex](https://community.unix.com/u/ziggelflex)\
**Replies:** 1\
**Last updated:** [June 22, 2023, 7:50am UTC](https://community.unix.com/t/brackets-in-js/391290 "2023-06-22T07:50:36Z")

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I'm trying to write this: console.log((250 - ((60 / 3) - (60 / 1))) / 60); But I get an error, the log should output 3.5 when I save the doc it deletes the brackets so it looks like this: console.log((250 - (60 /…

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## [NodeJS + PHP](https://community.unix.com/t/nodejs-php/390378)

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**Author:** [@Remo](https://community.unix.com/u/Remo)\
**Replies:** 7\
**Last updated:** [March 14, 2023, 4:02pm UTC](https://community.unix.com/t/nodejs-php/390378 "2023-03-14T16:02:29Z")

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Hello, I'm trying to use NodeJS with PHP. I want to use NodeJS to instantly insert information into a MYSQL database without refreshing the page. (With PHP you have to refresh). Only thing is. I installed NodeJS and R…

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## [HTML Modal issues](https://community.unix.com/t/html-modal-issues/390221)

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**Author:** [@ignatius](https://community.unix.com/u/ignatius)\
**Replies:** 3\
**Last updated:** [February 27, 2023, 8:53am UTC](https://community.unix.com/t/html-modal-issues/390221 "2023-02-27T08:53:41Z")

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Hi, I have 3 modals that work independently of one another. Everything is nice and spiffy, but the pop-up images are smaller than i'd like. I'm still a newbie to HTML, so I don't really know what to look for, to change. …

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## [MSQL SELECT with REPLACE function](https://community.unix.com/t/msql-select-with-replace-function/390016)

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**Author:** [@Remo](https://community.unix.com/u/Remo)\
**Replies:** 3\
**Last updated:** [February 14, 2023, 12:27pm UTC](https://community.unix.com/t/msql-select-with-replace-function/390016 "2023-02-14T12:27:27Z")

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Hello, Im trying to select values after comma seperated values. Im trying to do this with the SUBSTRING\_INDEX function, however the substring index checks after the comma but there is also a whitespace included after t…

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## [Looking for people to bounce ideas on Web Development](https://community.unix.com/t/looking-for-people-to-bounce-ideas-on-web-development/389466)

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**Author:** [@alvinoo](https://community.unix.com/u/alvinoo)\
**Replies:** 25\
**Last updated:** [January 7, 2023, 1:06pm UTC](https://community.unix.com/t/looking-for-people-to-bounce-ideas-on-web-development/389466 "2023-01-07T13:06:35Z")

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Hi there, I am looking for some advise pertain to web development. As far as I know: Django is a web framework based on Python and is based on MVT model Node.js is a javascript based server and npm is a package manage…

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## [ReactJS - Is there a library for creating folder structures and downloading them](https://community.unix.com/t/reactjs-is-there-a-library-for-creating-folder-structures-and-downloading-them/389301)

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**Author:** [@ziggelflex](https://community.unix.com/u/ziggelflex)\
**Replies:** 2\
**Last updated:** [January 4, 2023, 3:25am UTC](https://community.unix.com/t/reactjs-is-there-a-library-for-creating-folder-structures-and-downloading-them/389301 "2023-01-04T03:25:58Z")

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Hi All, Been away a while, I’m half way through a project and have hit a hurdle, no easy options out there. Maybe I’m just not searching Google correctly. I have a ReactJS web app and I want users to be able to create …

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## [Mail attachment not receiving properly](https://community.unix.com/t/mail-attachment-not-receiving-properly/389339)

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**Author:** [@ambareesh29](https://community.unix.com/u/ambareesh29)\
**Replies:** 2\
**Last updated:** [January 4, 2023, 3:08am UTC](https://community.unix.com/t/mail-attachment-not-receiving-properly/389339 "2023-01-04T03:08:54Z")

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Ok iam new here, Iam facing a problem in my mail while receiving the mail attachment as .htm, We contacted the Mail server team and they have checked their side and no issues found but when i check in the clean mail the …

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## [Animation on WordPress site with WP theme](https://community.unix.com/t/animation-on-wordpress-site-with-wp-theme/387937)

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**Author:** [@1337x](https://community.unix.com/u/1337x)\
**Replies:** 5\
**Last updated:** [December 16, 2022, 3:44pm UTC](https://community.unix.com/t/animation-on-wordpress-site-with-wp-theme/387937 "2022-12-16T15:44:15Z")

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Hi, On my website for renewable energy, I would like to add animation that looks like the landing page for https://weschool.com/en/. I looked at their source code and believe that it was created using Adobe XD. I have v…

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## [Apache Load balancer statistics](https://community.unix.com/t/apache-load-balancer-statistics/382873)

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**Author:** [@sandeepkmehra](https://community.unix.com/u/sandeepkmehra)\
**Replies:** 1\
**Last updated:** [May 26, 2021, 1:30am UTC](https://community.unix.com/t/apache-load-balancer-statistics/382873 "2021-05-26T01:30:54Z")

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Hi Friends, We are using apache load balancer in one of our deployments. Need your support on how we can prove that traffic is disributed among both the balancermembers. Any way to get the statistics which show how m…

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## [How to show notification message as popup on webpages](https://community.unix.com/t/how-to-show-notification-message-as-popup-on-webpages/388655)

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**Author:** [@EmiliaJ](https://community.unix.com/u/EmiliaJ)\
**Replies:** 1\
**Last updated:** [November 2, 2022, 10:12am UTC](https://community.unix.com/t/how-to-show-notification-message-as-popup-on-webpages/388655 "2022-11-02T10:12:18Z")

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I am using Concrete5 version 8.5.9 and PHP version 7.4 . I want to figure out how to display a notification message on my webpages. The notification message popup shows on the top right corner of my webpages as a alert…

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## [HTML Modal](https://community.unix.com/t/html-modal/388502)

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**Author:** [@ignatius](https://community.unix.com/u/ignatius)\
**Replies:** 9\
**Last updated:** [October 23, 2022, 5:21am UTC](https://community.unix.com/t/html-modal/388502 "2022-10-23T05:21:29Z")

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Hello again. I have some HTML here, \<div class="popup" onclick="myFunction2()"\>Click me! \<span class="popuptext" id="myPopup2"\> …

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## [PWA’s](https://community.unix.com/t/pwa-s/388260)

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**Author:** [@anon16652331](https://community.unix.com/u/anon16652331)\
**Replies:** 3\
**Last updated:** [October 6, 2022, 6:11am UTC](https://community.unix.com/t/pwa-s/388260 "2022-10-06T06:11:20Z")

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Question for @Neo Are PWA’s the future? I’m starting to believe yes! Love to know your thoughts! Zigs

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## [NSM\_FormMail.pl doesn't send sender email, subject, and name](https://community.unix.com/t/nsm-formmail-pl-doesnt-send-sender-email-subject-and-name/387837)

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**Author:** [@1337x](https://community.unix.com/u/1337x)\
**Replies:** 2\
**Last updated:** [September 2, 2022, 4:40pm UTC](https://community.unix.com/t/nsm-formmail-pl-doesnt-send-sender-email-subject-and-name/387837 "2022-09-02T16:40:33Z")

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My server is configured with NSM FormMail.pl, and I receive emails without the sender's name, email address, or topic. Relevant system detail: NAME="Oracle Linux Server" VERSION="8.6" ID="ol" ID\_LIKE="fedora" VARIANT="…

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