Category: Web

Getting all your repos with corresponding architecthre

Getting all your repos with corresponding architecthre requires surprise amount of API shinnanigans!

Dockerfiles/list.sh at main · shaman007/Dockerfiles

April 10, 2025
Current state of my K8S
Works:
- WordPress
- Tiny-Tiny RSS
- Matrix
- Nextcloud with image recognition
- Dovecot
- Postfix with DKIM
- MySQL
- PostgresQL
To do:
- Mastodon (dunno why but why not)
- Greylisintg
- Antispam
- Antivirus (clamav)
- Minecraft server
- Own Language tool instance
- Own Firefox sync instance
- Calendar and contacts sync
- Ubiquity controller
- Logs and metrics collection properly
- Local docker registry
- Video transcoding
- Other bits and dimes
- ????
August 9, 2023
YO-HO-HO

Now I have matrix!

@shaman007:matrix.andreybondarenko.com

July 31, 2023

Spam to aol.com

Some open relay spams a lot with this kind of messages:

Received-SPF: neutral (google.com: 95.216.139.147 is neither permitted nor denied by best guess record for domain of noreply.tye@kojmpwphuzgk.com) client-ip=95.216.139.147;
To: <abondarenko@aol.com>
Sender: support.S2quNYj43Z.673059
CC: <abondarenko@aol.com>
In-Reply-To: <CADT5qSj0REQQpwKiW6P5cL27kFYMN9CKrxS2quNYj43Z46NH1Cu5OuqVwXww@nzv.Americans Urged To Take Advantage Of Today’s Low Rates>
Message-ID: <ZF3lf1bGTw-Ct-Y9ADdPrxQfxtw8L0vHg-95.216.139.147@ismtpd0003p1iad1.sendgrid.net>
References: <----=_Part_zxX5LNJYyq8_2925087682796.s-east-2.amazonawzxX5LNJYyq8@>
Content-Type: multipart/Digest; boundary="----=_Part_zxX5LNJYyq8_2925087682796.s-east-2.amazonONj3L3voxQenV"
From: "`V.i.v.a-loan`@#" <wmu2NhS-rxQfxtw8L0v-noReply@kojmpwphuzgk.com>
MIME-Version: 2.0
Subject: Get_up.to-$15,000 just~in.time.for-Christmas!``357`
Date: [Date]

Google mail does not treat this as spam, but I can just drop all mail to abondarenko@aol.com. Interesting!

December 17, 2021

Let’s encrypt is wonderful, but certificate are getting expired every 3 months. Since it’s a first time I need to renew them, I have done it manually. The tool authenticates you (by default) with special file created in the .well-know/acme-challenge directory of the root, so the blog engine should not interfere or rewrite anything and should not return it’s own 404 page. Historically my nginx.conf has lots of existing redirects and rules, I am too lazy to correct and simplify it, so simple

localtion ~ .well-known {
        allow all;
    }

does not work. And I am too lazy to figure out why it is so (bad for me). So the most simple way to renew certs for me is to switch to minimal config. Putting it here for the future reference.

user  nginx;  
worker_processes  1;
error_log  /var/log/nginx/error.log;
pid        /run/nginx.pid;
events {
    worker_connections  1024;
}
http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';
    access_log  /var/log/nginx/access.log  main;
    server_names_hash_bucket_size 128;
    index   index.html index.htm;
    server { listen 80;
        listen [::]:80;
        server_name andreybondarenko.com;
location / {
                 root   /var/www/;
        }

    }
}

December 29, 2016

TOC and collapsible block samples
I am writing some tool for my daily work that produces fancy HTML page from RHEL, CentOS or Fedora log and config files, so it would be more easy to read them. Nothing special, just some bash scripts with sed, grep and awk that produce HTML with some CSS and JQuery.
1. TOC I really liked: http://projects.jga.me/toc/ It’s very easy to use and implement, it just looking through the document for h1, h2, etc tags. Scope and what tags to look can be customized.
2. Collapsible blocks sample: https://codepen.io/peternguyen/pen/hICga/
May be it would be yet another “log2html” framework in the end.
December 25, 2016
I2P browser

https://c.na7.visual.force.com/500A000000Vn1HlIAJ

November 24, 2016
Today’s news on security

Article: https://techcrunch.com/2016/10/21/many-sites-including-twitter-and-spotify-suffering-outage/

October 21, 2016
Interesing “feature” of the Mediawiki

Just have a bit digged in the Mediawiki, that is quite popular Wiki engine 🙂 Found out that the articles are located in the “prefix_text” table, with all the changes, obviously. So changes are being stored as a new copy of the article: if you have 100kb article and you need to save a change in 1 symbol, there would be 100kb growth (plus additional data) of the table. No wonder that the Wikipedia need new servers all the time! Cannot imagine size of their DBs.

October 21, 2016
Backuping mysql
Recently I have to backup mysql database on quite heavily loaded server and I wanted to make backup daily on one hand and I wanted them not to affect production on the other. DB size is more than 150 Gb, about 50k users daily.

First approach was ty try to simply run musqldump and see what would happen. Site was down right after the backup has begun. Then I have tried to nice the mysqldump with
```
/usr/bin/nice -n 10 ionice -c2 -n 7
```
The result was better, site was down at about 10% of the job. Next I add –single-transaction, that have solved about 95% of problems, still some time site was down, so I had to add -q option. The final command was:
```
/usr/bin/nice -n 10 ionice -c2 -n 7 /usr/bin/mysqldump --plugin-dir=/usr/lib/mysql/plugin --user=dbuser -h bd.lxc --port=3306 --all-databases --single-transaction -q|/bin/gzip >  /var/bcp/backup-db-`/bin/date -I`.sql.gz
```
October 19, 2016