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Install InspIRCd 4 on Debian (official .deb package)

Guide based on the official docs:
docs.inspircd.org — Debian installation (https://docs.inspircd.org/4/installation/debian/)

Supported (x86-64):

• Debian 12 (Bookworm)
• Debian 13 (Trixie)
• Debian 14 (Forky)

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1. Remove the old Debian-repo package (if present)

If you previously installed InspIRCd from Debian's own repositories:

cp -r /etc/inspircd ~/inspircd-conf
cp -r /var/run/inspircd ~/inspircd-data
sudo apt purge inspircd

After installing the official package you can restore config/data:
cp -r ~/inspircd-conf/* /etc/inspircd
cp -r ~/inspircd-data/* /var/lib/inspircd


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2. Download the package

sudo apt install wget

Debian 12 (Bookworm):
wget "https://github.com/inspircd/inspircd/releases/download/v4.12.1/inspircd_4.12.1.deb12u1_amd64.deb"

Debian 13 (Trixie):
wget "https://github.com/inspircd/inspircd/releases/download/v4.12.1/inspircd_4.12.1.deb13u1_amd64.deb"

Debian 14 (Forky):
wget "https://github.com/inspircd/inspircd/releases/download/v4.12.1/inspircd_4.12.1.deb14u1_amd64.deb"

Check for a newer version on the releases page (https://github.com/inspircd/inspircd/releases) if needed.

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3. Optional — verify SHA-256

sha256sum ./inspircd_4.12.1.deb12u1_amd64.deb
# or the deb13 / deb14 filename

Compare with the checksum on the GitHub release page.

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4. Install

# Debian 12
sudo apt install "./inspircd_4.12.1.deb12u1_amd64.deb"

# Debian 13
sudo apt install "./inspircd_4.12.1.deb13u1_amd64.deb"

# Debian 14
sudo apt install "./inspircd_4.12.1.deb14u1_amd64.deb"


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5. Configure & start

Config lives in [tt]/etc/inspircd[/tt]. Edit your config, then:

sudo systemctl start inspircd.service
sudo systemctl enable inspircd.service

Without systemd:
sudo -g irc -u irc inspircd


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File locations

• Config: [tt]/etc/inspircd[/tt]
• Data: [tt]/var/lib/inspircd[/tt]
• Logs: [tt]/var/log/inspircd[/tt]

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Source: InspIRCd 4 — Debian installation (https://docs.inspircd.org/4/installation/debian/)

Next: configuration guide (https://docs.inspircd.org/4/configuration). Questions? Post your Debian version and any apt errors.