Differences

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--- technical [2017/12/04 15:58] – created jcnash
+++ technical [2024/03/31 15:34] (current) – ↷ Links adapted because of a move operation scott5
@@ Line 1: / Line 1: @@
 ===== Technical Projects and Notes =====
-[[technical|technical page]]
+====   20190416 ====
+**bind mount** to get web server link to files outside //Documentroot// device
+Wanting to give access at home to some files of use for
+home activities, I set up a web server (I tried both nginx
+and apache2). However, a symlink to the files of interest
+pointed outside the current device. I was able to point to
+files in my home directory from a symlink in /var/www/html
+without difficulty. (/home is on same device as /var/www)
+I tried a number of configuration settings in the .conf files,
+including "alias" and various FollowSymLinks tries, without
+success.
+At the April 4 linux-ottawa meeting, Alex Pilon suggested a
+bind mount, and this works.
+My example:
+Directory /var/www/html/ contains files and symlinks
+There is a directory tto18 with 755 permissions and root ownership.
+The command
+sudo mount -o bind /media/john/Rebecca /var/www/html/tto18
+allows local users (on local router, and therefore hopefully
+inside the firewall) to access my machine as "john-j6-18.local"
+and see this directory, which points to a disk that is attached.
+To get this set up when my machine boots, I tried adding
+the command "/home/john/bin/bmreb" to the Startup Items in the Linux Mint
+Control Centre. "bmreb" is a file with contents
+	#!/bin/bash
+	# bmreb -- bind mount rebecca
+	mount -o bind /media/john/Rebecca /var/www/html/tto18
+It is owned by root and has 755 permissions. Rebooting, I found
+that the bind mount was not active. In Linux Mint 19.1, it is now
+necessary to use systemd to start such items as indicated in
+https://forums.linuxmint.com/viewtopic.php?t=275464
+which gives a tutorial. I followed this and have a working
+startup.
 ====   * OCLUG live distro ====
       * [[livedistro:plan2017|Planning outline for OCLUG live USB distro]]
-      * [[livedistro:smurphy170321|Investigation of EFI boot (S Murphy)]]
+      * [[livedistro:scottmurphy20170321|Investigation of EFI boot (S Murphy) 2017]]
-      * [[livedistro:jn170424|Attempts to configure graphical interface (J Nash)]]
+      * [[livedistro:jn170424|Attempts to configure graphical interface (J Nash) 2017]]
+      * [[livedistro:jn190307|New tries to prepare custom iso - March 2019]]
-====   * viewing Comment information in a JPG file browser ====
+====  * viewing Comment information in a JPG file browser ====
       * This investigation was prompted by a need to quickly check the captions saved in JPG files. After some exchange on the linux _at_ oclug.on.ca list, I recorded what I found, including a nice simple tool built on the **feh** package. See {{ :wiki:scanjpgwoes.pdf |}}. Because the Irfanview program for Windows (32 bit particularly) is useful for both Linux and Windows, documentation of how to use it to view JPG Comments in full-screen mode is presented separately as {{ :wiki:viewjpgcmt.pdf |}}.
-====   * removing restrictions on pdf files ====
+====  * removing restrictions on pdf files ====
-      * TD seems in 2017 to have started to put restrictions on pdf statement files. It is useful to be able to delete boilerplate and add in payment records using **pdfshuffler**. Here is a recipe. {{ :wiki:fixpdfrestrictions.pdf |}}
+      * TD Canada Trust seems in 2017 to have started to put restrictions on pdf statement files. It is useful to be able to delete boilerplate and add in payment records using **pdfshuffler**. Here is a recipe. {{ :wiki:fixpdfrestrictions.pdf |}}