Linux – Czit notes

Open Thread OpenWRT/Debian/SLZB-MR3 Configuration

przez kszyh | 24 sierpnia 2025 - 12:49 |1 września 2025 Bez kategorii, Linux

This is my configuration to run Thread/Matter configuration to work together with Home Assistant. Assumptions: enp2s0 – ethernet card id 192.168.0.128:7638 – ip and port of socket listening on SLZB-MR3 This works on Debian 13 (trixie) and OpenWRT 24.10.2 SLZB-MR3 OpenWRT

# Add IPv6 to existing LAN interface 
uci set network.globals.ula_prefix='fd12:3456:789a::/48'
uci set network.lan.ipv6='1'
uci set network.lan.ip6assign='64'
uci set network.lan.ip6hint='0'

# Enable Multicast snooping
uci set network.lan.multicast_snooping='1'

uci commit network
/etc/init.d/network restart

# Enable DHCPv6 server (IPv4 DHCP will continue working)
uci set dhcp.lan.dhcpv6='server'
uci set dhcp.lan.ra='server'
uci set dhcp.lan.ra_management='1' 
uci set dhcp.lan.ra_default='1'
uci set dhcp.lan.ra_lifetime='1800'
uci set dhcp.lan.ra_addresses='1'

uci commit dhcp
/etc/init.d/odhcpd restart

# Add IPv6 to existing LAN interface

uci set network.globals.ula_prefix='fd12:3456:789a::/48'

uci set network.lan.ipv6='1'

uci set network.lan.ip6assign='64'

uci set network.lan.ip6hint='0'

# Enable Multicast snooping

uci set network.lan.multicast_snooping='1'

uci commit network

/etc/init.d/network restart

# Enable DHCPv6 server (IPv4 DHCP will continue working)

uci set dhcp.lan.dhcpv6='server'

uci set dhcp.lan.ra='server'

uci set dhcp.lan.ra_management='1'

uci set dhcp.lan.ra_default='1'

uci set dhcp.lan.ra_lifetime='1800'

uci set dhcp.lan.ra_addresses='1'

uci commit dhcp

/etc/init.d/odhcpd restart

opkg update
opkg install umdns

1 2	opkg update opkg install umdns

Debian I installed avahi-daemon… Continue reading →

Ansible cheat sheet

przez kszyh | 17 kwietnia 2024 - 12:00 |29 kwietnia 2024 Linux

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Run playbook with extra params

ansible-playbook /ansible/playbooks/01-first-time-login.yml  -i inventory.ini --limit core3 --extra-vars "ansible_ssh_pass=pass ansible_become_password=pass"

1	ansible-playbook /ansible/playbooks/01-first-time-login.yml -i inventory.ini --limit core3 --extra-vars "ansible_ssh_pass=pass ansible_become_password=pass"

Using secrets

ansible-playbook /ansible/playbooks/01-first-time-login.yml  -i inventory.ini -e @secrets.enc --vault-password-file password-file --limit core3

1	ansible-playbook /ansible/playbooks/01-first-time-login.yml -i inventory.ini -e @secrets.enc --vault-password-file password-file --limit core3

password-file must contain password in plain text

In which container PID is running?

przez kszyh | 2 kwietnia 2024 - 12:06 |2 kwietnia 2024 Bez kategorii, Linux, Skrypty

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Sometimes we only know the PID (e.g. from nvidia-smi). We do not know what container the PID is running in.

TARGET_PID=331711
for container in $(docker ps -q); do
    if docker top $container | awk '{print $2}' | grep -q $TARGET_PID; then
        container_name=$(docker inspect --format '{{.Name}}' $container | sed 's/^\/\(.*\)/\1/')
        echo "PID $TARGET_PID is running in container: $container (Name: $container_name)"
        exit 0
    fi
done
echo "PID $TARGET_PID is not running in any active container."

TARGET_PID=331711

for container in $(docker ps -q); do

if docker top $container | awk '{print $2}' | grep -q $TARGET_PID; then

container_name=$(docker inspect --format '{{.Name}}' $container | sed 's/^\/$.*$/\1/')

echo "PID $TARGET_PID is running in container: $container (Name: $container_name)"

exit 0

done

echo "PID $TARGET_PID is not running in any active container."

Debug docker container

przez kszyh | 25 lipca 2022 - 14:18 |25 lipca 2022 Linux

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ENTRYPOINT ["tail", "-f", "/dev/null"]

1	ENTRYPOINT ["tail", "-f", "/dev/null"]

Overwrite docker config

przez kszyh | 25 lipca 2022 - 10:46 |25 lipca 2022 Linux

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Create a /etc/systemd/system/docker.service.d/docker.conf file and specify your overrides there. https://stackoverflow.com/a/31385025

Execute SQL file on SQLServer in Docker container

przez kszyh | 14 lutego 2022 - 12:47 |14 lutego 2022 Linux

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/opt/mssql-tools/bin/sqlcmd -S 127.0.0.1 -d database -U sa -P password -i /sql/SAP_data.sql

1	/opt/mssql-tools/bin/sqlcmd -S 127.0.0.1 -d database -U sa -P password -i /sql/SAP_data.sql

Extend LUKS on LVM (by adding new drive)

przez kszyh | 14 lutego 2022 - 08:02 |14 lutego 2022 Linux

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Verify the drive designations:

lvmdiskscan

1	lvmdiskscan

Add new drive to LVM Physical volume:

pvcreate /dev/sdf

1	pvcreate /dev/sdf

Extend volume group:

vgextend vg_data /dev/sdf

1	vgextend vg_data /dev/sdf

Resize logical volume:

lvm lvextend -l +100%FREE /dev/vg_data/storage

1	lvm lvextend -l +100%FREE /dev/vg_data/storage

Resize encrypted partition:

cryptsetup luksOpen /dev/vg_data/storage storage
cryptsetup resize storage
e2fsck -f /dev/mapper/storage
resize2fs -p /dev/mapper/vg_data

cryptsetup luksOpen /dev/vg_data/storage storage

cryptsetup resize storage

e2fsck -f /dev/mapper/storage

resize2fs -p /dev/mapper/vg_data

Verify sizes:

mount /storage/
df --human

1 2	mount /storage/ df --human

mc (Midnight Commander) favourites directories (bookmarks)?

przez kszyh | 11 kwietnia 2021 - 10:51 |11 kwietnia 2021 Linux

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Adding:

CTRL+x, h

CTRL+x, h

Jump/Edit:

CTRL+\

CTRL+\

Putty does not show correct prompt using Powerline fonts

przez kszyh | 6 listopada 2020 - 08:41 |6 listopada 2020 Linux

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https://github.com/arialdomartini/oh-my-git/issues/10#issuecomment-166732282

Sentry – Docker

przez kszyh | 4 lutego 2020 - 14:40 |11 lutego 2020 Linux

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snuba

FROM "getsentry/snuba:latest"

1	FROM "getsentry/snuba:latest"

snuba-consumer

FROM "getsentry/snuba:latest"
CMD ["consumer", "--auto-offset-reset=latest", "--max-batch-time-ms", "750"]

1 2	FROM "getsentry/snuba:latest" CMD ["consumer", "--auto-offset-reset=latest", "--max-batch-time-ms", "750"]

snuba-replacer

FROM "getsentry/snuba:latest"
CMD ["replacer", "--auto-offset-reset=latest", "--max-batch-size", "3"]

1 2	FROM "getsentry/snuba:latest" CMD ["replacer", "--auto-offset-reset=latest", "--max-batch-size", "3"]

snuba-cleanup

FROM "getsentry/snuba:latest"
RUN apt-get update && apt-get install -y cron && rm -r /var/lib/apt/lists/*
RUN echo "*/5 * * * * gosu snuba snuba cleanup --dry-run False" | crontab -
ENTRYPOINT ["/usr/sbin/cron"]
CMD ["-l", "-L", "15", "-f"]

FROM "getsentry/snuba:latest"

RUN apt-get update && apt-get install -y cron && rm -r /var/lib/apt/lists/*

RUN echo "*/5 * * * * gosu snuba snuba cleanup --dry-run False" | crontab -

ENTRYPOINT ["/usr/sbin/cron"]

CMD ["-l", "-L", "15", "-f"]

sentry-web

sudo SENTRY_IMAGE=getsentry/sentry:10.0.0 ./install.sh

1	sudo SENTRY_IMAGE=getsentry/sentry:10.0.0 ./install.sh

FROM "sentry-onpremise-local:latest"

1	FROM "sentry-onpremise-local:latest"

sentry-cron

FROM "sentry-onpremise-local:latest"
CMD ["run", "cron"]

1 2	FROM "sentry-onpremise-local:latest" CMD ["run", "cron"]

sentry-worker

FROM "sentry-onpremise-local:latest"
ENV PYTHONWARNINGS "ignore:Unverified HTTPS request"
CMD ["run", "worker"]

FROM "sentry-onpremise-local:latest"

ENV PYTHONWARNINGS "ignore:Unverified HTTPS request"

CMD ["run", "worker"]

sentry-forwarder

FROM "sentry-onpremise-local:latest"
CMD ["run", "post-process-forwarder", "--commit-batch-size", "1"]

1 2	FROM "sentry-onpremise-local:latest" CMD ["run", "post-process-forwarder", "--commit-batch-size", "1"]

Archiwum kategorii: Linux

Open Thread OpenWRT/Debian/SLZB-MR3 Configuration

Ansible cheat sheet

In which container PID is running?

Debug docker container

Overwrite docker config

Execute SQL file on SQLServer in Docker container

Extend LUKS on LVM (by adding new drive)

mc (Midnight Commander) favourites directories (bookmarks)?

Putty does not show correct prompt using Powerline fonts

Sentry – Docker

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