Backport OpenSSH for Debian / Ubuntu distros.

A simple script to build backport openssh deb, using Debian sid sources.

Similar Project:　Backport OpenSSH RPM for CentOS

Current Version:

OpenSSH 9.7p1 (defined in version.env)
OpenSSL 3.0.13

Supported (tested) Distro:

Ubuntu 24.04
Ubuntu 22.04
Ubuntu 20.04
Debian 13/trixie
Debian 12/bookworm
Debian 11/bullseye

Direct Build

# Install Dependencies
sudo apt install pkgconf build-essential fakeroot \
    dpkg-dev debhelper debhelper-compat dh-exec dh-runit \
    libkrb5-dev libpam0g-dev libwrap0-dev \
    libaudit-dev libedit-dev libfido2-dev \
    libgtk-3-dev libselinux1-dev libsystemd-dev \
    libcbor-dev

# pull source
./pullsrc.sh

# direct build
./compile.sh

Docker Build

Build without installing a bunch of dev packages, also for a different distro by changing build-arg.

# pull source from debian sid
./pullsrc.sh

# build a docker image that fits your target system.
docker build \
    -t opensshbuild \
    --build-arg DISTRO=ubuntu \
    --build-arg DISTVER=22.04 \
    --build-arg APT_MIRROR=ftp.us.debian.org \
    -f ./docker/Dockerfile \
    .

# run the build process
docker run --rm -v $PWD/output:/data/output opensshbuild

# clean up docker image
docker image rm opensshbuild
docker builder prune

Install DEBs

Generated DEBs are right under the output directory. (either direct build or docker build).

ls -l output/*.deb

# Ignore dbgsym and tests
find output -maxdepth 1 ! -name '*dbgsym*' ! -name '*tests*' -name '*.deb' | xargs sudo apt install -y

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