Some more articles reformatting

content/blog/commands/busybox-web-server.md

@@ -4,7 +4,7 @@ date: 2019-04-16
 description: How to serve static files from only busybox
 tags:
   - linux
-  - simple utilities
+  - toolbox
 ---
 
 ## The command

content/blog/commands/date.md

@@ -3,7 +3,7 @@ title: "Convert unix timestamp to readable date"
 date: 2011-01-06
 description: the -d flag of the date command combined with @timestamp
 tags:
-  - simple utilities
+  - toolbox
 ---
 
 ## The trick

content/blog/commands/dmidecode.md

@@ -3,7 +3,7 @@ title: "DMIdecode"
 date: 2011-02-16
 description: Some DMIdecode common flags
 tags:
-  - simple utilities
+  - toolbox
 ---
 
 ## Introduction

content/blog/commands/find-hardlinks.md

@@ -3,8 +3,8 @@ title: "Find hardlinks to a same file"
 date: 2018-03-02
 description: How to list hardlinks that link to the same file
 tags:
-  - find
+  - toolbox
-  - simple utilities
+  - unix
 ---
 
 {{< highlight sh >}}

content/blog/commands/find-inodes-used.md

@@ -3,8 +3,8 @@ title: "Find where inodes are used"
 date: 2018-04-25
 description: How to locate what is taking all the inodes in the subdirectory of a given device
 tags:
-  - find
+  - toolbox
-  - simple utilities
+  - unix
 ---
 
 {{< highlight sh >}}

content/blog/commands/ipmi.md

@@ -3,7 +3,7 @@ title: "ipmitool"
 date: 2018-03-05
 description: some ipmitool command examples
 tags:
-  - simple utilities
+  - toolbox
 ---
 
 ## Usage examples

content/blog/commands/mdadm.md

@@ -4,7 +4,7 @@ date: 2011-11-15
 description: some mdadm command examples
 tags:
   - linux
-  - simple utilities
+  - toolbox
 ---
 
 ## Watch the array status

content/blog/commands/rrdtool.md

@@ -3,7 +3,7 @@ title: "rrdtool"
 date: 2018-09-25
 description: How to graph manually with rrdtool
 tags:
-  - simple utilities
+  - toolbox
 ---
 
 ## Graph manually

content/blog/miscellaneous/bash-tcp-client.md

@@ -3,7 +3,7 @@ title: "Bash tcp client"
 date: 2018-03-21
 description: Bash tcp client
 tags:
-  - simple utilities
+  - toolbox
 ---
 
 ## Having some fun with bash

content/blog/miscellaneous/i3dropdown.md

@@ -1,11 +1,13 @@
 ---
 title: "i3dropdown"
-linkTitle: "i3dropdown"
 date: 2020-01-23
-description: >
+description: How to use i3dropdown to pump up your graphical environment
-  i3dropdown
+tags:
+  - toolbox
 ---
 
+## Introduction
+
 i3dropdown is a tool to make any X application drop down from the top of the screen, in the famous quake console style back in the day.
 
 ## Compilation
@@ -29,4 +31,3 @@ bindsym Mod4+shift+p exec /home/julien/bin/i3dropdown -W 90 -H 50 pavucontrol pa
 
 To work properly, i3dropdown needs to have the path to the i3 socket. Because the command to get the socketpath from i3 is a little slow, it is best to cache it somewhere. By default
 i3dropdown recognises `/tmp/i3wm-socket-path`. Then each window managed by i3dropdown needs to be floating. The last line bind a key to invoke or mask the app.
-

content/blog/miscellaneous/libreoffice.md

@@ -1,9 +1,15 @@
 ---
 title: "Removing libreoffice write protection"
-linkTitle: "Removing libreoffice write protection"
 date: 2018-03-05
-description: >
+description: How to remove libreoffice write protection on a document
-  Removing libreoffice write protection
+tags:
+  - toolbox
 ---
 
-You can choose to ignore write-protection by setting `Tools > Options > libreOffice Writer > Formatting Aids > Protected Areas > Ignore protection`.
+## The problem
+
+Sometimes you have to edit a corporate document which vim cannot really open for edition and you are dumbstruck as to why the software won't just let you make your changes without jumping through hoops.
+
+## The solution
+
+You can choose to ignore write-protection by setting `Tools > Options > libreOffice Writer > Formatting Aids > Protected Areas > Ignore protection`. Yes, so much menu nesting for something so stupid!

content/blog/miscellaneous/link-deleted-inode.md

@@ -1,10 +1,21 @@
 ---
 title: "Link to a deleted inode"
-linkTitle: "Link to a deleted inode"
 date: 2018-03-05
-description: >
+description: How to restore a hardlink to a deleted inode
-  Link to a deleted inode
+tags:
+  - unix
 ---
 
-Get the inode number from `lsof`, then run `debugfs -w /dev/mapper/vg-home -R 'link <16008> /some/path'` where 16008 is the inode number (the < > are important, they tell debugfs you manipulate an inode). The path is relative to the root of the block device you are restoring onto.
+## The problem
 
+Sometimes a file gets deleted by mistake, but thankfully it is still opened by some software.
+
+## The solution
+
+Get the inode number from `lsof` (or from `fstat` if you are on a modern system), then run something like the following :
+
+{{< highlight sh >}}
+debugfs -w /dev/mapper/vg-home -R 'link <16008> /some/path'
+{{< /highlight >}}
+
+In this example 16008 is the inode number you want to link to (the < > are important, they tell debugfs you are manipulating an inode). Beware that **the path is relative to the root of the block device** you are restoring onto.

content/blog/miscellaneous/make.md

@@ -1,10 +1,11 @@
 ---
 title: "Understanding make"
-linkTitle: "Understanding make"
 date: 2018-01-30
-description: >
+description: A link to a great article for understanding make
-  Understanding make
+tags:
+  - toolbox
 ---
 
-http://gromnitsky.users.sourceforge.net/articles/notes-for-new-make-users/
+## The article
 
+Here is a link to a great article for understanding make : http://gromnitsky.users.sourceforge.net/articles/notes-for-new-make-users/

content/blog/miscellaneous/mencoder.md

@@ -1,12 +1,14 @@
 ---
-title: "Aggregate images into a video with mencoder"
+title: "Turning images into a video with mencoder"
-linkTitle: "Aggregate images into a video with mencoder"
 date: 2018-04-30
-description: >
+description: How to turn images into a video with mencoder
-  Aggregate images into a video withmencoder
+tags:
+  - toolbox
 ---
 
 ## Aggregate png images into a video
+
+Example command :
 {{< highlight sh >}}
 mencoder mf://*.png -mf w=1400:h=700:fps=1:type=png -ovc lavc -lavcopts vcodec=mpeg4:mbd=2:trell -oac copy -o output.avi
 {{< /highlight >}}

content/blog/miscellaneous/mssql-centos-7.md

@@ -1,11 +1,20 @@
 ---
 title: "Installing mssql on centos 7"
-linkTitle: "Installing mssql on centos 7"
 date: 2019-07-09
-description: >
+description: How to install mssql on centos 7
-  Installing mssql on centos 7
+tags:
+  - Centos
+  - rhel
+  - toolbox
 ---
 
+## Disclaimer
+
+I had to do this in order to help a friend, I do not think I would ever willingly put mssql in production unless I went crazy.
+
+## Procedure
+
+Here is how to setup mssql on a fresh centos 7
 {{< highlight sh >}}
 vi /etc/sysconfig/network-scripts/ifcfg-eth0
 vi /etc/resolv.conf
@@ -26,4 +35,3 @@ rm -f /etc/localtime
 ln -s /usr/share/zoneinfo/Europe/Paris /etc/localtime
 /opt/mssql-tools/bin/sqlcmd -S localhost -U SA -p
 {{< /highlight >}}
-

content/blog/miscellaneous/my-postgresql-role-cannot-login.md

@@ -1,12 +1,18 @@
 ---
 title: "Cannot login role into postgresql"
-linkTitle: "Cannot login role into postgresql"
 date: 2015-11-24
-description: >
+description: How to fix a "Cannot login role" error on postgresql
-  Cannot login role into postgresql
+tags:
+  - PostgreSQL
 ---
 
+## The problem
+
+Login is a permission on postgresql, that sometimes is not obvious it can cause issues.
+
+## The solution
+
+Simply log in as postgres or another administrator account and run :
 {{< highlight sh >}}
 ALTER ROLE "user" LOGIN;
 {{< /highlight >}}
-

content/blog/miscellaneous/nginx-ldap.md

@@ -1,11 +1,13 @@
 ---
 title: "LDAP auth with nginx"
-linkTitle: "LDAP auth with nginx"
 date: 2018-03-05
-description: >
+description: How to setup LDAP authentication with nginx
-  LDAP auth with nginx
+tags:
+  - nginx
 ---
 
+## How to
+
 {{< highlight sh >}}
 ldap_server ldap {
     auth_ldap_cache_enabled on;
@@ -22,4 +24,3 @@ ldap_server ldap {
     #require group "cn=admins,ou=groups,dc=adyxax,dc=org";
 }
 {{< /highlight >}}
-

content/blog/miscellaneous/osm-overlay-example.md

@@ -1,12 +1,18 @@
 ---
 title: "OpenStreetMap overlay example"
-linkTitle: "OpenStreetMap overlay example"
 date: 2020-05-19
-description: >
+description: An example of how to query things visually on OpenStreetMap
-  An example of how to query things visually on OpenStreetMap
+tags:
+  - toolbox
 ---
 
-http://overpass-turbo.eu/
+## The problem
+
+OpenStreetMap is a great resource and there is a lot more information stored there than you can easily see.
+
+## The solution
+
+Go to http://overpass-turbo.eu/ and enter a filter script similar to the following :
 {{< highlight html >}}
 <osm-script>
   <query type="node">
@@ -17,3 +23,5 @@ http://overpass-turbo.eu/
   <print mode="body"/>
 </osm-script>
 {{< /highlight >}}
+
+This example will highlight the recycling points near a target location. From there you can build almost any filter you can think of!

content/blog/miscellaneous/pleroma.md

@@ -1,14 +1,17 @@
 ---
 title: "Pleroma installation notes"
-linkTitle: "Pleroma installation notes"
 date: 2018-11-16
-description: >
+description: How to install pleroma
-  Pleroma installation notes
+tags:
+  - toolbox
 ---
 
+## Introduction
+
 This article is about my installation of pleroma in a standard alpine linux lxd container.
 
 ## Installation notes
+
 {{< highlight sh >}}
 apk add elixir nginx postgresql postgresql-contrib git sudo erlang-ssl erlang-xmerl erlang-parsetools erlang-runtime-tools make gcc build-base vim vimdiff htop curl
 /etc/init.d/postgresql start
@@ -46,6 +49,7 @@ curl http://localhost:4000/api/v1/instance
 
 If this works, you can shut it down with two C-c and we can configure nginx. This article doesn't really cover my setup since my nginx doesn't run there, and I am using letsencrypt wildcard certificates fetched somewhere else unrelated, so to simplify I only paste the vhost part of the configuration :
 {{< highlight sh >}}
+
 ### in nginx.conf inside the container ###
 # {{{ pleroma
 proxy_cache_path /tmp/pleroma-media-cache levels=1:2 keys_zone=pleroma_media_cache:10m max_size=500m inactive=200m use_temp_path=off;

content/blog/miscellaneous/postgresql-read-only.md

@@ -1,17 +1,18 @@
 ---
 title: "Grant postgresql read only access"
-linkTitle: "Grant postgresql read only access"
 date: 2015-11-24
-description: >
+description: How to grant read only access to a postgresql user
-  Grant postgresql read only access
+tags:
+  - PostgreSQL
 ---
 
+## The solution
+
+Here is the bare minimum a user need in order to have complete read only access on a postgresql database :
 {{< highlight sh >}}
 GRANT CONNECT ON DATABASE "db" TO "user";
 \c db
 GRANT USAGE ON SCHEMA public TO "user";
 GRANT SELECT ON ALL TABLES IN SCHEMA public TO "user";
-ALTER DEFAULT PRIVILEGES IN SCHEMA public
+ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT SELECT ON TABLES TO "user";
-   GRANT SELECT ON TABLES TO "user";
 {{< /highlight >}}
-

content/blog/miscellaneous/postgresql-reassign.md

@@ -1,11 +1,14 @@
 ---
 title: "Change owner on a postgresql database and all tables"
-linkTitle: "Change owner on a postgresql database and all tables"
 date: 2012-04-20
-description: >
+description: How to change owner on a postgresql database and all tables
-  Change owner on a postgresql database and all tables
+tags:
+  - PostgreSQL
 ---
 
+## The solution
+
+Here is the sequence of commande that will change the owner of all objects in a database from a user named "support" to another named "test-support":
 {{< highlight sh >}}
 ALTER DATABASE name OWNER TO new_owner
 for tbl in `psql -qAt -c "select tablename from pg_tables where schemaname = 'public';" YOUR_DB` ; do  psql -c "alter table $tbl owner to NEW_OWNER" YOUR_DB ; done

content/blog/miscellaneous/pulseaudio.md

@@ -1,11 +1,12 @@
 ---
 title: "Pulseaudio"
-linkTitle: "Pulseaudio"
 date: 2018-09-25
-description: >
+description: Some pulseaudio commands
-  Pulseaudio
+tags:
+  - linux
 ---
 
+## The commands
+
 - List outputs : `pacmd list-sinks | grep -e 'name:' -e 'index'`
 - Select a new one : `pacmd set-default-sink alsa_output.usb-C-Media_Electronics_Inc._USB_PnP_Sound_Device-00.analog-stereo`
-

content/blog/miscellaneous/purge-postfix-queue-based-content.md

@@ -1,13 +1,18 @@
 ---
 title: "Purge postfix queue based on email contents"
-linkTitle: "Purge postfix queue based on email contents"
 date: 2009-04-27
-description: >
+description: How to selectively purge a postfix queue based on email contents
-  Purge postfix queue based on email contents
+tags:
+  - toolbox
 ---
 
+## The problem
 
+Sometimes a lot of spam can acacumulate in a postfix queue.
+
+## The solution
+
+Here is a command that can search through queued emails for a certain character string (here XXX as an example) and delete the ones that contain it :
 {{< highlight sh >}}
 find /var/spool/postfix/deferred/ -type f -exec grep -li 'XXX' '{}' \; | xargs -n1 basename | xargs -n1 postsuper -d
 {{< /highlight >}}
-

content/blog/miscellaneous/qmail.md

@@ -1,9 +1,9 @@
 ---
 title: "Qmail"
-linkTitle: "Qmail"
 date: 2018-03-05
-description: >
+description: Some qmail commands
-  Qmail
+tags:
+  - toolbox
 ---
 
 ## Commands
@@ -18,4 +18,3 @@ description: >
 - http://www.lifewithqmail.org/lwq.html
 - http://www.fileformat.info/tip/linux/qmailnow.htm
 - https://www.hivelocity.net/kb/how-to-change-queue-lifetime-for-qmail/
-

content/blog/miscellaneous/rocketchat.md

@@ -1,11 +1,18 @@
 ---
 title: "RocketChat"
-linkTitle: "RocketChat"
 date: 2019-08-06
-description: >
+description: How to quickly setup a RocketChat container with docker
-  RocketChat
+tags:
+  - docker
+  - toolbox
 ---
 
+## The problem
+
+I needed to test some scripts that interact with a rocketchat instance at work. The documentation was lacking especially the mongo initiate part so here is how I did it.
+
+## The commands
+
 Docker simple install :
 {{< highlight sh >}}
 docker run --name db -d mongo --smallfiles --replSet hurricane
@@ -15,4 +22,3 @@ docker exec -ti db mongo
 
 docker run -p 3000:3000 --name rocketchat --env ROOT_URL=http://hurricane --env MONGO_OPLOG_URL=mongodb://db:27017/local?replSet=hurricane  --link db -d rocket.chat
 {{< /highlight >}}
-

content/blog/miscellaneous/screen-cannot-open-terminal.md

@@ -1,17 +1,24 @@
 ---
 title: "Screen cannot open terminal error"
-linkTitle: "Screen cannot open terminal error"
 date: 2018-07-03
-description: >
+description: How to fix a "Screen cannot open terminal" error
-  Screen cannot open terminal error
+tags:
+  - toolbox
+  - unix
 ---
 
-If you encounter :
+## The problem
+
+At my current workplace there are die hard screen fanatics that refuse to upgrade to tmux. Sometimes I get the following error :
 {{< highlight sh >}}
 Cannot open your terminal '/dev/pts/0' - please check.
 {{< /highlight >}}
 
-Then you did not open the shell with the user you logged in with. You can make screen happy by running : 
+## The solution
+
+This error means that you did not open the shell with the user you logged in with. You can make screen happy by running : 
 {{< highlight sh >}}
 script /dev/null
 {{< /highlight >}}
+
+In this new environment your screen commands will work normally.

content/blog/miscellaneous/seti-at-home.md

@@ -1,11 +1,17 @@
 ---
 title: "Seti@Home"
-linkTitle: "Seti@Home"
 date: 2018-03-05
-description: >
+description: Getting back into Seti@Home 15 years later
-  Seti@Home
+tags:
+  - toolbox
 ---
 
+## Introduction
+
+Me and some friends were feeling nostalgics of running Seti@Home as a screensaver in the early 2000s and were delighted to see that the project is still alive and kicking.
+
+## The commands
+
 {{< highlight sh >}}
 apt install boinc
 echo "graou" > /var/lib/boinc-client/gui_rpc_auth.cfg
@@ -15,4 +21,3 @@ boinccmd --host localhost --passwd graou --get_state|less
 boinccmd --host localhost --passwd graou --lookup_account http://setiathome.berkeley.edu <EMAIL> XXXXXX
 boinccmd --host localhost --passwd graou --project_attach http://setiathome.berkeley.edu <ACCOUNT_KEY>
 {{< /highlight >}}
-

content/blog/miscellaneous/sqlite-pretty-print.md

@@ -1,16 +1,16 @@
 ---
 title: "Sqlite pretty print"
-linkTitle: "Sqlite pretty print"
 date: 2019-06-19
-description: >
+description: How to pretty print your Sqlite output
-  Sqlite pretty print
+tags:
+  - SQLite
 ---
 
-- In ~/.sqliterc :
+## The solution
+In `~/.sqliterc` add the following :
 {{< highlight sh >}}
 .mode column
 .headers on
 .separator ROW "\n"
 .nullvalue NULL
 {{< /highlight >}}
-

content/blog/miscellaneous/switching-to-hugo.md

@@ -1,11 +1,13 @@
 ---
 title: "Switching to Hugo"
-linkTitle: "Switching to Hugo"
 date: 2019-12-19
-description: >
+description: I switched my personal wiki from dokuwiki to Hugo
-  I switched my personal wiki from dokuwiki to Hugo
+tags:
+  - hugo
 ---
 
+## Introduction
+
 This is the website you are currently reading. It is a static website built using hugo. This article details how I installed hugo, how I initialised this website and how I manage it. I often refer to it as wiki.adyxax.org because I hosted a unique dokuwiki for a long time as my main website (and a pmwiki before that), but with hugo it has become more than that. It is now a mix of wiki, blog and showcase of my work and interests.
 
 ## Installing hugo

content/blog/netapp/investigate-memory-errors.md

@@ -1,11 +1,13 @@
 ---
 title: "Investigate memory errors"
-linkTitle: "Investigate memory errors"
 date: 2018-07-06
-description: >
+description: How to investigate memory errors on a data ONTAP system
-  How to investigate memory errors on a data ONTAP system
+tags:
+  - netapp
 ---
 
+## The commands
+
 {{< highlight sh >}}
 set adv
 system node show-memory-errors -node <cluster_node>

content/blog/travels/new-zealand.md

@@ -1,7 +0,0 @@
----
-title: "I am back from New Zealand"
-linkTitle: "Back from New Zealand"
-date: 2019-12-08
-description: >
-  I am back from New Zealand, after three and a half weeks over there.
----