Author Archives: dmitriano

Interesting GASP chart

At about 8:50 PM MSK GAZP price reached its upper limit:

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Connecting two phones to Asterisk with PJSIP

I was able to connect to Asterisk running in a Docker container using Linphone app:

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Updating website icon in Joomla 5

For the Cassiopeia template, Joomla will look for the favicons in the following locations:

  1. media/templates/site/cassiopeia/images – they are not there so Joomla will look in the next location.
  2. media/system/images – they are there so Joomla will use them from there.
wget -O - https://sharlines.com | grep -i favicon
        <link href="/media/system/images/joomla-favicon.svg" rel="icon" type="image/svg+xml">
        <link href="/media/templates/site/cassiopeia/images/favicon.ico" rel="alternate icon" type="image/vnd.microsoft.icon">
        <link href="/media/system/images/joomla-favicon-pinned.svg" rel="mask-icon" color="#000">
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Running Asterisk 22 in a Docker container

I build and run Asterisk 22 in a Docker container on my Ubuntu 24.04 and it started to use 100% CPU and within a few hours consumed 100% of the disk space:

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Denying access to /xmlrpc.php on a WordPress website

Today I notices that my WordPress website consumes 30% CPU.

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Preventing OpenVPN clients from seeing each other

Listing existing rules

sudo docker exec -it dockovpn_dockovpn_1 bash
iptables --list
Chain INPUT (policy ACCEPT)
target     prot opt source               destination
ACCEPT     udp  --  anywhere             anywhere             state NEW,ESTABLISHED udp dpt:openvpn
ACCEPT     all  --  anywhere             anywhere

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination
ACCEPT     all  --  anywhere             anywhere
ACCEPT     all  --  10.8.0.0/24          anywhere
ACCEPT     all  --  anywhere             anywhere             state RELATED,ESTABLISHED

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination
ACCEPT     udp  --  anywhere             anywhere             state ESTABLISHED udp spt:openvpn
ACCEPT     all  --  anywhere             anywhere
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Running VPN Server with Access Server in a Docker container

Run the docker container:

sudo docker pull openvpn/openvpn-as
sudo ufw allow 1194/udp
sudo ufw allow 943/tcp
sudo ufw allow 1443/tcp

sudo docker run -d --rm \
  --name=openvpn-as --device /dev/net/tun \
  --cap-add=MKNOD --cap-add=NET_ADMIN \
  -p 943:943 -p 1443:443 -p 1194:1194/udp \
  -v /var/lib/openvpn-as:/openvpn \
  openvpn/openvpn-as

sudo docker logs -f openvpn-as | grep "generated pass"
Auto-generated pass = "*********". Setting in db...
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Creating Docker network for hosting legacy PHP websites

Running test Docker containers

sudo docker network create --subnet=172.20.0.0/16 legacy_net
sudo docker network ls
NETWORK ID     NAME               DRIVER    SCOPE
61aa4a19ec0c   bridge             bridge    local
7c0ebcfd4e3a   dockovpn_default   bridge    local
79ed9c355254   host               host      local
99d8bde8e488   legacy_net         bridge    local
086455f026a8   none               null      local
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Upgrading my Joomla website from 4 to 5

Pre-Update check page displayed that I need Output Buffering:

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Upgrading my Joomla website from 3 to 4

I have the following Joomla version:

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