RSA key not working with openssh server >= 8.8

[crazyn2]

Server: Ubuntu 22.04 OpenSSH_8.9p1 Ubuntu-3, OpenSSL 3.0.2 15 Mar 2022

[Info  - 01:16:00.976] Resolving ssh remote authority 'ssh-remote+sshtest' (attemp #1)
[Trace  - 01:16:00.980] Identity keys:
/home/zby/.ssh/id_rsa ssh-rsa SHA256:xxxxxxm2ZjsTMv+xxxodrReQDHCv7AIIxviy0MjfxJc=
[Info  - 01:16:01.21] Trying no-auth authentication
[Info  - 01:16:01.30] Trying publickey authentication: /home/zby/.ssh/id_rsa ssh-rsa SHA256:0NdTW6m2ZjsTMv+w5EodrReQDHCv7AIIxviy0MjfxJc=
[Info  - 01:16:01.38] Trying password authentication
[Trace  - 01:16:13.956] Server install command:

# Server installation script

TMP_DIR="${XDG_RUNTIME_DIR:-"/tmp"}"

DISTRO_VERSION="1.70.2"
DISTRO_COMMIT="6c122d9b2d1af2c37bd55caad614321eb53b342f"
DISTRO_QUALITY="stable"
DISTRO_VSCODIUM_RELEASE="22230"

SERVER_APP_NAME="codium-server"
SERVER_INITIAL_EXTENSIONS=""
SERVER_LISTEN_FLAG="--port=0"
SERVER_DATA_DIR="$HOME/.vscodium-server"
SERVER_DIR="$SERVER_DATA_DIR/bin/$DISTRO_COMMIT"
SERVER_SCRIPT="$SERVER_DIR/bin/$SERVER_APP_NAME"
SERVER_LOGFILE="$SERVER_DATA_DIR/.$DISTRO_COMMIT.log"
SERVER_PIDFILE="$SERVER_DATA_DIR/.$DISTRO_COMMIT.pid"
SERVER_TOKENFILE="$SERVER_DATA_DIR/.$DISTRO_COMMIT.token"
SERVER_ARCH=
SERVER_CONNECTION_TOKEN=
SERVER_DOWNLOAD_URL=

LISTENING_ON=
OS_RELEASE_ID=
ARCH=
PLATFORM=

# Mimic output from logs of remote-ssh extension
print_install_results_and_exit() {
    echo "c4ef5ea32130208e202785ce: start"
    echo "exitCode==$1=="
    echo "listeningOn==$LISTENING_ON=="
    echo "connectionToken==$SERVER_CONNECTION_TOKEN=="
    echo "logFile==$SERVER_LOGFILE=="
    echo "osReleaseId==$OS_RELEASE_ID=="
    echo "arch==$ARCH=="
    echo "platform==$PLATFORM=="
    echo "tmpDir==$TMP_DIR=="
    echo "c4ef5ea32130208e202785ce: end"
    exit 0
}

# Check if platform is supported
PLATFORM="$(uname -s)"
case $PLATFORM in
    Linux)
        # Only linux for now
        ;;
    *)
        echo "Error platform not supported: $PLATFORM"
        print_install_results_and_exit 1
        ;;
esac

# Check machine architecture
ARCH="$(uname -m)"
case $ARCH in
    x86_64)
        SERVER_ARCH="x64"
        ;;
    armv7l | armv8l)
        SERVER_ARCH="armhf"
        ;;
    arm64 | aarch64)
        SERVER_ARCH="arm64"
        ;;
    *)
        echo "Error architecture not supported: $ARCH"
        print_install_results_and_exit 1
        ;;
esac

# https://www.freedesktop.org/software/systemd/man/os-release.html
OS_RELEASE_ID="$(grep -i '^ID=' /etc/os-release 2>/dev/null | sed 's/^ID=//gi' | sed 's/"//g')"
if [[ -z $OS_RELEASE_ID ]]; then
    OS_RELEASE_ID="$(grep -i '^ID=' /usr/lib/os-release 2>/dev/null | sed 's/^ID=//gi' | sed 's/"//g')"
    if [[ -z $OS_RELEASE_ID ]]; then
        OS_RELEASE_ID="unknown"
    fi
fi

# Create installation folder
if [[ ! -d $SERVER_DIR ]]; then
    mkdir -p $SERVER_DIR
    if (( $? > 0 )); then
        echo "Error creating server install directory"
        print_install_results_and_exit 1
    fi
fi

SERVER_DOWNLOAD_URL="$(echo "https://github.com/VSCodium/vscodium/releases/download/\${version}.\${release}/vscodium-reh-linux-\${arch}-\${version}.\${release}.tar.gz" | sed "s/\${quality}/$DISTRO_QUALITY/g" | sed "s/\${version}/$DISTRO_VERSION/g" | sed "s/\${commit}/$DISTRO_COMMIT/g" | sed "s/\${arch}/$SERVER_ARCH/g" | sed "s/\${release}/$DISTRO_VSCODIUM_RELEASE/g")"

# Check if server script is already installed
if [[ ! -f $SERVER_SCRIPT ]]; then
    pushd $SERVER_DIR > /dev/null

    wget --tries=3 --timeout=10 --quiet -O vscode-server.tar.gz $SERVER_DOWNLOAD_URL
    if (( $? > 0 )); then
        echo "Error downloading server from $SERVER_DOWNLOAD_URL"
        print_install_results_and_exit 1
    fi

    tar -xf vscode-server.tar.gz --strip-components 1
    if (( $? > 0 )); then
        echo "Error while extracting server contents"
        print_install_results_and_exit 1
    fi

    if [[ ! -f $SERVER_SCRIPT ]]; then
        echo "Error server contents are corrupted"
        print_install_results_and_exit 1
    fi

    rm -f vscode-server.tar.gz

    popd > /dev/null
else
    echo "Server script already installed in $SERVER_SCRIPT"
fi

# Try to find if server is already running
if [[ -f $SERVER_PIDFILE ]]; then
    SERVER_PID="$(cat $SERVER_PIDFILE)"
    SERVER_RUNNING_PROCESS="$(ps -o pid,cmd -p $SERVER_PID | grep $SERVER_SCRIPT)"
else
    SERVER_RUNNING_PROCESS="$(ps -o pid,cmd -A | grep $SERVER_SCRIPT | grep -v grep)"
fi

if [[ -z $SERVER_RUNNING_PROCESS ]]; then
    if [[ -f $SERVER_LOGFILE ]]; then
        rm $SERVER_LOGFILE
    fi
    if [[ -f $SERVER_TOKENFILE ]]; then
        rm $SERVER_TOKENFILE
    fi

    touch $SERVER_TOKENFILE
    chmod 600 $SERVER_TOKENFILE
    SERVER_CONNECTION_TOKEN="b7d7a91b-0038-4959-b7dd-1d47e5075979"
    echo $SERVER_CONNECTION_TOKEN > $SERVER_TOKENFILE

    $SERVER_SCRIPT --start-server --host=127.0.0.1 $SERVER_LISTEN_FLAG $SERVER_INITIAL_EXTENSIONS --connection-token-file $SERVER_TOKENFILE --telemetry-level off --enable-remote-auto-shutdown --accept-server-license-terms &> $SERVER_LOGFILE &
    echo $! > $SERVER_PIDFILE
else
    echo "Server script is already running $SERVER_SCRIPT"
fi

if [[ -f $SERVER_TOKENFILE ]]; then
    SERVER_CONNECTION_TOKEN="$(cat $SERVER_TOKENFILE)"
else
    echo "Error server token file not found $SERVER_TOKENFILE"
    print_install_results_and_exit 1
fi

if [[ -f $SERVER_LOGFILE ]]; then
    for i in {1..5}; do
        LISTENING_ON="$(cat $SERVER_LOGFILE | grep -E 'Extension host agent listening on .+' | sed 's/Extension host agent listening on //')"
        if [[ -n $LISTENING_ON ]]; then
            break
        fi
        sleep 0.5
    done

    if [[ -z $LISTENING_ON ]]; then
        echo "Error server did not start sucessfully"
        print_install_results_and_exit 1
    fi
else
    echo "Error server log file not found $SERVER_LOGFILE"
    print_install_results_and_exit 1
fi

# Finish server setup
print_install_results_and_exit 0

[Trace  - 01:16:14.216] Server install command stdout:
Server script already installed in /home/zby/.vscodium-server/bin/6c122d9b2d1af2c37bd55caad614321eb53b342f/bin/codium-server
Server script is already running /home/zby/.vscodium-server/bin/6c122d9b2d1af2c37bd55caad614321eb53b342f/bin/codium-server
c4ef5ea32130208e202785ce: start
exitCode==0==
listeningOn==43727==
connectionToken==9672a3b4-e1f5-4fc3-a97d-a3b568045124==
logFile==/home/zby/.vscodium-server/.6c122d9b2d1af2c37bd55caad614321eb53b342f.log==
osReleaseId==ubuntu==
arch==x86_64==
platform==Linux==
tmpDir==/run/user/997==
c4ef5ea32130208e202785ce: end

[Trace  - 01:16:14.219] Creating forwarding server 42883(local) => 33743(socks) => 43727(remote)

[crazyn2]

now, it's remaining setting up connection interface

[Info  - 01:54:02.333] Resolving ssh remote authority 'ssh-remote+sshtest' (attemp #1)
[Trace  - 01:54:02.338] Identity keys:
/home/zby/.ssh/id_rsa ssh-rsa SHA256:0NdTW6m2ZjsTMv+w5EodrReQDHCv7AIIxviy0MjfxJc=
[Info  - 01:54:02.619] Trying no-auth authentication
[Info  - 01:54:02.627] Trying publickey authentication: /home/zby/.ssh/id_rsa ssh-rsa SHA256:0NdTW6m2ZjsTMv+w5EodrReQDHCv7AIIxviy0MjfxJc=
[Info  - 01:54:02.636] Trying password authentication
[Trace  - 01:54:27.799] Server install command:

# Server installation script

TMP_DIR="${XDG_RUNTIME_DIR:-"/tmp"}"

DISTRO_VERSION="1.70.2"
DISTRO_COMMIT="6c122d9b2d1af2c37bd55caad614321eb53b342f"
DISTRO_QUALITY="stable"
DISTRO_VSCODIUM_RELEASE="22230"

SERVER_APP_NAME="codium-server"
SERVER_INITIAL_EXTENSIONS=""
SERVER_LISTEN_FLAG="--port=0"
SERVER_DATA_DIR="$HOME/.vscodium-server"
SERVER_DIR="$SERVER_DATA_DIR/bin/$DISTRO_COMMIT"
SERVER_SCRIPT="$SERVER_DIR/bin/$SERVER_APP_NAME"
SERVER_LOGFILE="$SERVER_DATA_DIR/.$DISTRO_COMMIT.log"
SERVER_PIDFILE="$SERVER_DATA_DIR/.$DISTRO_COMMIT.pid"
SERVER_TOKENFILE="$SERVER_DATA_DIR/.$DISTRO_COMMIT.token"
SERVER_ARCH=
SERVER_CONNECTION_TOKEN=
SERVER_DOWNLOAD_URL=

LISTENING_ON=
OS_RELEASE_ID=
ARCH=
PLATFORM=

# Mimic output from logs of remote-ssh extension
print_install_results_and_exit() {
    echo "61e61ca7fda45079d3cd4c7c: start"
    echo "exitCode==$1=="
    echo "listeningOn==$LISTENING_ON=="
    echo "connectionToken==$SERVER_CONNECTION_TOKEN=="
    echo "logFile==$SERVER_LOGFILE=="
    echo "osReleaseId==$OS_RELEASE_ID=="
    echo "arch==$ARCH=="
    echo "platform==$PLATFORM=="
    echo "tmpDir==$TMP_DIR=="
    echo "61e61ca7fda45079d3cd4c7c: end"
    exit 0
}

# Check if platform is supported
PLATFORM="$(uname -s)"
case $PLATFORM in
    Linux)
        # Only linux for now
        ;;
    *)
        echo "Error platform not supported: $PLATFORM"
        print_install_results_and_exit 1
        ;;
esac

# Check machine architecture
ARCH="$(uname -m)"
case $ARCH in
    x86_64)
        SERVER_ARCH="x64"
        ;;
    armv7l | armv8l)
        SERVER_ARCH="armhf"
        ;;
    arm64 | aarch64)
        SERVER_ARCH="arm64"
        ;;
    *)
        echo "Error architecture not supported: $ARCH"
        print_install_results_and_exit 1
        ;;
esac

# https://www.freedesktop.org/software/systemd/man/os-release.html
OS_RELEASE_ID="$(grep -i '^ID=' /etc/os-release 2>/dev/null | sed 's/^ID=//gi' | sed 's/"//g')"
if [[ -z $OS_RELEASE_ID ]]; then
    OS_RELEASE_ID="$(grep -i '^ID=' /usr/lib/os-release 2>/dev/null | sed 's/^ID=//gi' | sed 's/"//g')"
    if [[ -z $OS_RELEASE_ID ]]; then
        OS_RELEASE_ID="unknown"
    fi
fi

# Create installation folder
if [[ ! -d $SERVER_DIR ]]; then
    mkdir -p $SERVER_DIR
    if (( $? > 0 )); then
        echo "Error creating server install directory"
        print_install_results_and_exit 1
    fi
fi

SERVER_DOWNLOAD_URL="$(echo "https://github.com/VSCodium/vscodium/releases/download/\${version}.\${release}/vscodium-reh-linux-\${arch}-\${version}.\${release}.tar.gz" | sed "s/\${quality}/$DISTRO_QUALITY/g" | sed "s/\${version}/$DISTRO_VERSION/g" | sed "s/\${commit}/$DISTRO_COMMIT/g" | sed "s/\${arch}/$SERVER_ARCH/g" | sed "s/\${release}/$DISTRO_VSCODIUM_RELEASE/g")"

# Check if server script is already installed
if [[ ! -f $SERVER_SCRIPT ]]; then
    pushd $SERVER_DIR > /dev/null

    wget --tries=3 --timeout=10 --quiet -O vscode-server.tar.gz $SERVER_DOWNLOAD_URL
    if (( $? > 0 )); then
        echo "Error downloading server from $SERVER_DOWNLOAD_URL"
        print_install_results_and_exit 1
    fi

    tar -xf vscode-server.tar.gz --strip-components 1
    if (( $? > 0 )); then
        echo "Error while extracting server contents"
        print_install_results_and_exit 1
    fi

    if [[ ! -f $SERVER_SCRIPT ]]; then
        echo "Error server contents are corrupted"
        print_install_results_and_exit 1
    fi

    rm -f vscode-server.tar.gz

    popd > /dev/null
else
    echo "Server script already installed in $SERVER_SCRIPT"
fi

# Try to find if server is already running
if [[ -f $SERVER_PIDFILE ]]; then
    SERVER_PID="$(cat $SERVER_PIDFILE)"
    SERVER_RUNNING_PROCESS="$(ps -o pid,cmd -p $SERVER_PID | grep $SERVER_SCRIPT)"
else
    SERVER_RUNNING_PROCESS="$(ps -o pid,cmd -A | grep $SERVER_SCRIPT | grep -v grep)"
fi

if [[ -z $SERVER_RUNNING_PROCESS ]]; then
    if [[ -f $SERVER_LOGFILE ]]; then
        rm $SERVER_LOGFILE
    fi
    if [[ -f $SERVER_TOKENFILE ]]; then
        rm $SERVER_TOKENFILE
    fi

    touch $SERVER_TOKENFILE
    chmod 600 $SERVER_TOKENFILE
    SERVER_CONNECTION_TOKEN="5ca43eb9-b216-452e-8dde-a349e3864deb"
    echo $SERVER_CONNECTION_TOKEN > $SERVER_TOKENFILE

    $SERVER_SCRIPT --start-server --host=127.0.0.1 $SERVER_LISTEN_FLAG $SERVER_INITIAL_EXTENSIONS --connection-token-file $SERVER_TOKENFILE --telemetry-level off --enable-remote-auto-shutdown --accept-server-license-terms &> $SERVER_LOGFILE &
    echo $! > $SERVER_PIDFILE
else
    echo "Server script is already running $SERVER_SCRIPT"
fi

if [[ -f $SERVER_TOKENFILE ]]; then
    SERVER_CONNECTION_TOKEN="$(cat $SERVER_TOKENFILE)"
else
    echo "Error server token file not found $SERVER_TOKENFILE"
    print_install_results_and_exit 1
fi

if [[ -f $SERVER_LOGFILE ]]; then
    for i in {1..5}; do
        LISTENING_ON="$(cat $SERVER_LOGFILE | grep -E 'Extension host agent listening on .+' | sed 's/Extension host agent listening on //')"
        if [[ -n $LISTENING_ON ]]; then
            break
        fi
        sleep 0.5
    done

    if [[ -z $LISTENING_ON ]]; then
        echo "Error server did not start sucessfully"
        print_install_results_and_exit 1
    fi
else
    echo "Error server log file not found $SERVER_LOGFILE"
    print_install_results_and_exit 1
fi

# Finish server setup
print_install_results_and_exit 0

[Trace  - 01:55:08.495] Server install command stdout:
Error downloading server from https://github.com/VSCodium/vscodium/releases/download/1.70.2.22230/vscodium-reh-linux-x64-1.70.2.22230.tar.gz
61e61ca7fda45079d3cd4c7c: start
exitCode==1==
listeningOn====
connectionToken====
logFile==/home/zby/.vscodium-server/.6c122d9b2d1af2c37bd55caad614321eb53b342f.log==
osReleaseId==ubuntu==
arch==x86_64==
platform==Linux==
tmpDir==/run/user/997==
61e61ca7fda45079d3cd4c7c: end

[Error  - 01:55:08.496] Error resolving authority
Error: Couldn't install vscode server on remote server, install script returned non-zero exit status
	at t.installCodeServer (/home/zby/.vscode-oss/extensions/jeanp413.open-remote-ssh-0.0.6/out/extension.js:1:402261)
	at processTicksAndRejections (node:internal/process/task_queues:96:5)
	at async /home/zby/.vscode-oss/extensions/jeanp413.open-remote-ssh-0.0.6/out/extension.js:1:374031

[jeanp413]

Hi @crazyn2 I think you are hitting this upstream bug mscdex/ssh2#989 (upstream fix mscdex/ssh2#1200)
To confirm it:

• could you try using a different ssh key like ed25519 or
• in your remote server Open file /etc/ssh/sshd_config and add PubkeyAcceptedKeyTypes=+ssh-rsa and then Restart the service sshd (source)

Let me know if that works

[crazyn2]

I've tried both of them. Successfully in Linux terminal command but not in vscodim.

[Info  - 07:58:03.462] Resolving ssh remote authority 'ssh-remote+sshtest' (attemp #1)
[Trace  - 07:58:03.476] Identity keys:
/home/zby/.ssh/id_ed25519 ssh-ed25519 SHA256:9wYmKe1dXvJZq1tO+zrZ7/5o05hXziPiI8GJzOaet7c=
zby@zby-atgaff ssh-rsa SHA256:uRl3vczWRvdIIud1qgmo3hNP7mQe44Yf/otSEqJoemg=
zby@zby-atgaff ecdsa-sha2-nistp521 SHA256:hhqmNjP2IalKX3mYYrKIzzTIgJkUBQLmX4bLor98D+s=
[Error  - 07:59:33.477] Error resolving authority
Error: Timed out while waiting for handshake
	at Timeout.<anonymous> (/home/zby/.vscode-oss/extensions/jeanp413.open-remote-ssh-0.0.6/out/extension.js:1:143509)
	at listOnTimeout (node:internal/timers:557:17)
	at processTimers (node:internal/timers:500:7)
[Info  - 07:59:49.25] Resolving ssh remote authority 'ssh-remote+sshtest' (attemp #2)
[Trace  - 07:59:49.29] Identity keys:
/home/zby/.ssh/id_ed25519 ssh-ed25519 SHA256:9wYmKe1dXvJZq1tO+zrZ7/5o05hXziPiI8GJzOaet7c=
zby@zby-atgaff ssh-rsa SHA256:uRl3vczWRvdIIud1qgmo3hNP7mQe44Yf/otSEqJoemg=
zby@zby-atgaff ecdsa-sha2-nistp521 SHA256:hhqmNjP2IalKX3mYYrKIzzTIgJkUBQLmX4bLor98D+s=
[Info  - 07:59:49.99] Trying no-auth authentication
[Info  - 07:59:49.109] Trying publickey authentication: /home/zby/.ssh/id_ed25519 ssh-ed25519 SHA256:9wYmKe1dXvJZq1tO+zrZ7/5o05hXziPiI8GJzOaet7c=
[Trace  - 07:59:49.135] Server install command:

# Server installation script

TMP_DIR="${XDG_RUNTIME_DIR:-"/tmp"}"

DISTRO_VERSION="1.70.2"
DISTRO_COMMIT="6c122d9b2d1af2c37bd55caad614321eb53b342f"
DISTRO_QUALITY="stable"
DISTRO_VSCODIUM_RELEASE="22230"

SERVER_APP_NAME="codium-server"
SERVER_INITIAL_EXTENSIONS=""
SERVER_LISTEN_FLAG="--port=0"
SERVER_DATA_DIR="$HOME/.vscodium-server"
SERVER_DIR="$SERVER_DATA_DIR/bin/$DISTRO_COMMIT"
SERVER_SCRIPT="$SERVER_DIR/bin/$SERVER_APP_NAME"
SERVER_LOGFILE="$SERVER_DATA_DIR/.$DISTRO_COMMIT.log"
SERVER_PIDFILE="$SERVER_DATA_DIR/.$DISTRO_COMMIT.pid"
SERVER_TOKENFILE="$SERVER_DATA_DIR/.$DISTRO_COMMIT.token"
SERVER_ARCH=
SERVER_CONNECTION_TOKEN=
SERVER_DOWNLOAD_URL=

LISTENING_ON=
OS_RELEASE_ID=
ARCH=
PLATFORM=

# Mimic output from logs of remote-ssh extension
print_install_results_and_exit() {
    echo "8a087fabd118d54827d01295: start"
    echo "exitCode==$1=="
    echo "listeningOn==$LISTENING_ON=="
    echo "connectionToken==$SERVER_CONNECTION_TOKEN=="
    echo "logFile==$SERVER_LOGFILE=="
    echo "osReleaseId==$OS_RELEASE_ID=="
    echo "arch==$ARCH=="
    echo "platform==$PLATFORM=="
    echo "tmpDir==$TMP_DIR=="
    echo "8a087fabd118d54827d01295: end"
    exit 0
}

# Check if platform is supported
PLATFORM="$(uname -s)"
case $PLATFORM in
    Linux)
        # Only linux for now
        ;;
    *)
        echo "Error platform not supported: $PLATFORM"
        print_install_results_and_exit 1
        ;;
esac

# Check machine architecture
ARCH="$(uname -m)"
case $ARCH in
    x86_64)
        SERVER_ARCH="x64"
        ;;
    armv7l | armv8l)
        SERVER_ARCH="armhf"
        ;;
    arm64 | aarch64)
        SERVER_ARCH="arm64"
        ;;
    *)
        echo "Error architecture not supported: $ARCH"
        print_install_results_and_exit 1
        ;;
esac

# https://www.freedesktop.org/software/systemd/man/os-release.html
OS_RELEASE_ID="$(grep -i '^ID=' /etc/os-release 2>/dev/null | sed 's/^ID=//gi' | sed 's/"//g')"
if [[ -z $OS_RELEASE_ID ]]; then
    OS_RELEASE_ID="$(grep -i '^ID=' /usr/lib/os-release 2>/dev/null | sed 's/^ID=//gi' | sed 's/"//g')"
    if [[ -z $OS_RELEASE_ID ]]; then
        OS_RELEASE_ID="unknown"
    fi
fi

# Create installation folder
if [[ ! -d $SERVER_DIR ]]; then
    mkdir -p $SERVER_DIR
    if (( $? > 0 )); then
        echo "Error creating server install directory"
        print_install_results_and_exit 1
    fi
fi

SERVER_DOWNLOAD_URL="$(echo "https://github.com/VSCodium/vscodium/releases/download/\${version}.\${release}/vscodium-reh-linux-\${arch}-\${version}.\${release}.tar.gz" | sed "s/\${quality}/$DISTRO_QUALITY/g" | sed "s/\${version}/$DISTRO_VERSION/g" | sed "s/\${commit}/$DISTRO_COMMIT/g" | sed "s/\${arch}/$SERVER_ARCH/g" | sed "s/\${release}/$DISTRO_VSCODIUM_RELEASE/g")"

# Check if server script is already installed
if [[ ! -f $SERVER_SCRIPT ]]; then
    pushd $SERVER_DIR > /dev/null

    wget --tries=3 --timeout=10 --quiet -O vscode-server.tar.gz $SERVER_DOWNLOAD_URL
    if (( $? > 0 )); then
        echo "Error downloading server from $SERVER_DOWNLOAD_URL"
        print_install_results_and_exit 1
    fi

    tar -xf vscode-server.tar.gz --strip-components 1
    if (( $? > 0 )); then
        echo "Error while extracting server contents"
        print_install_results_and_exit 1
    fi

    if [[ ! -f $SERVER_SCRIPT ]]; then
        echo "Error server contents are corrupted"
        print_install_results_and_exit 1
    fi

    rm -f vscode-server.tar.gz

    popd > /dev/null
else
    echo "Server script already installed in $SERVER_SCRIPT"
fi

# Try to find if server is already running
if [[ -f $SERVER_PIDFILE ]]; then
    SERVER_PID="$(cat $SERVER_PIDFILE)"
    SERVER_RUNNING_PROCESS="$(ps -o pid,cmd -p $SERVER_PID | grep $SERVER_SCRIPT)"
else
    SERVER_RUNNING_PROCESS="$(ps -o pid,cmd -A | grep $SERVER_SCRIPT | grep -v grep)"
fi

if [[ -z $SERVER_RUNNING_PROCESS ]]; then
    if [[ -f $SERVER_LOGFILE ]]; then
        rm $SERVER_LOGFILE
    fi
    if [[ -f $SERVER_TOKENFILE ]]; then
        rm $SERVER_TOKENFILE
    fi

    touch $SERVER_TOKENFILE
    chmod 600 $SERVER_TOKENFILE
    SERVER_CONNECTION_TOKEN="14aa3823-cff4-4128-bddd-4ce11889d072"
    echo $SERVER_CONNECTION_TOKEN > $SERVER_TOKENFILE

    $SERVER_SCRIPT --start-server --host=127.0.0.1 $SERVER_LISTEN_FLAG $SERVER_INITIAL_EXTENSIONS --connection-token-file $SERVER_TOKENFILE --telemetry-level off --enable-remote-auto-shutdown --accept-server-license-terms &> $SERVER_LOGFILE &
    echo $! > $SERVER_PIDFILE
else
    echo "Server script is already running $SERVER_SCRIPT"
fi

if [[ -f $SERVER_TOKENFILE ]]; then
    SERVER_CONNECTION_TOKEN="$(cat $SERVER_TOKENFILE)"
else
    echo "Error server token file not found $SERVER_TOKENFILE"
    print_install_results_and_exit 1
fi

if [[ -f $SERVER_LOGFILE ]]; then
    for i in {1..5}; do
        LISTENING_ON="$(cat $SERVER_LOGFILE | grep -E 'Extension host agent listening on .+' | sed 's/Extension host agent listening on //')"
        if [[ -n $LISTENING_ON ]]; then
            break
        fi
        sleep 0.5
    done

    if [[ -z $LISTENING_ON ]]; then
        echo "Error server did not start sucessfully"
        print_install_results_and_exit 1
    fi
else
    echo "Error server log file not found $SERVER_LOGFILE"
    print_install_results_and_exit 1
fi

# Finish server setup
print_install_results_and_exit 0

[crazyn2]

from the related issues mentioned, the ssh2 npm module didn't support ssh2 yet

[jeanp413]

It does support it, the problem is just with rsa keys, newer versions of openssh client/server > 8.8 (in your case your ubuntu server has 8.9) deprecated key exchange with sha1 signature, so changing the ssh key algorithm or forcing it to enable in the server config should fix your issue with the password prompt.
Now the other issue that it fails with Error: Timed out while waiting for handshake seems like a network issue 🤔 , it was working fine before right? does it fail every time with the same error? I ask because in the gif I see running ssh in the terminal also hanged once

[crazyn2]

It does support it, the problem is just with rsa keys, newer versions of openssh client/server > 8.8 (in your case your ubuntu server has 8.9) deprecated key exchange with sha1 signature, so changing the ssh key algorithm or forcing it to enable in the server config should fix your issue with the password prompt. Now the other issue that it fails with Error: Timed out while waiting for handshake seems like a network issue thinking , it was working fine before right? does it fail every time with the same error? I ask because in the gif I see running ssh in the terminal also hanged once

mscdex/ssh2#1200
maybe it should update ssh2 version and sometimes ssh connecting failed in terminal

[crazyn2]

(base) zby@zby-atgaff:~$ ssh -v sshtest
OpenSSH_8.9p1 Ubuntu-3, OpenSSL 3.0.2 15 Mar 2022
debug1: Reading configuration data /home/zby/.ssh/config
debug1: /home/zby/.ssh/config line 1: Applying options for sshtest
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Reading configuration data /etc/ssh/ssh_config.d/zby.conf
debug1: /etc/ssh/ssh_config line 21: Applying options for *
debug1: Connecting to 192.168.50.120 [192.168.50.120] port 22.
debug1: Connection established.
debug1: identity file /home/zby/.ssh/id_ed25519 type 3
debug1: identity file /home/zby/.ssh/id_ed25519-cert type -1
debug1: identity file /home/zby/.ssh/id_ecdsa type 2
debug1: identity file /home/zby/.ssh/id_ecdsa-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_8.9p1 Ubuntu-3
debug1: Remote protocol version 2.0, remote software version OpenSSH_8.9p1 Ubuntu-3
debug1: compat_banner: match: OpenSSH_8.9p1 Ubuntu-3 pat OpenSSH* compat 0x04000000
debug1: Authenticating to 192.168.50.120:22 as 'zby'
debug1: load_hostkeys: fopen /home/zby/.ssh/known_hosts2: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: SSH2_MSG_KEX_ECDH_REPLY received
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:sF5qer/4PSpVclRP1RWkH/BRbRyY6//70FfGDsH/U8k
debug1: load_hostkeys: fopen /home/zby/.ssh/known_hosts2: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory
debug1: Host '192.168.50.120' is known and matches the ECDSA host key.
debug1: Found key in /home/zby/.ssh/known_hosts:26
debug1: rekey out after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey in after 134217728 blocks
debug1: get_agent_identities: bound agent to hostkey
debug1: get_agent_identities: agent returned 6 keys
debug1: Will attempt key: /home/zby/.ssh/id_ed25519 ED25519 SHA256:6v3nzAoAwYmfLIG+DXNyP8n/ZNilTdL+fET4cOV0m/M explicit agent
debug1: Will attempt key: /home/zby/.ssh/id_ecdsa ECDSA SHA256:a4v80VHYvsNJpleQfoc21AGZq6Agcc7VjH1kpR3MMfQ explicit agent
debug1: Will attempt key: zby@zby-atgaff RSA SHA256:uRl3vczWRvdIIud1qgmo3hNP7mQe44Yf/otSEqJoemg agent
debug1: Will attempt key: zby@zby-atgaff ECDSA SHA256:hhqmNjP2IalKX3mYYrKIzzTIgJkUBQLmX4bLor98D+s agent
debug1: Will attempt key: zby@zby-atgaff ED25519 SHA256:9wYmKe1dXvJZq1tO+zrZ7/5o05hXziPiI8GJzOaet7c agent
debug1: Will attempt key: zby@zby-atgaff RSA SHA256:0NdTW6m2ZjsTMv+w5EodrReQDHCv7AIIxviy0MjfxJc agent
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,sk-ssh-ed25519@openssh.com,ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,sk-ecdsa-sha2-nistp256@openssh.com,webauthn-sk-ecdsa-sha2-nistp256@openssh.com>
debug1: kex_input_ext_info: publickey-hostbound@openssh.com=<0>
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Offering public key: /home/zby/.ssh/id_ed25519 ED25519 SHA256:6v3nzAoAwYmfLIG+DXNyP8n/ZNilTdL+fET4cOV0m/M explicit agent
debug1: Server accepts key: /home/zby/.ssh/id_ed25519 ED25519 SHA256:6v3nzAoAwYmfLIG+DXNyP8n/ZNilTdL+fET4cOV0m/M explicit agent
Authenticated to 192.168.50.120 ([192.168.50.120]:22) using "publickey".
debug1: channel 0: new [client-session]
debug1: Requesting no-more-sessions@openssh.com
debug1: Entering interactive session.
debug1: pledge: filesystem
debug1: client_input_global_request: rtype hostkeys-00@openssh.com want_reply 0
debug1: client_input_hostkeys: searching /home/zby/.ssh/known_hosts for 192.168.50.120 / (none)
debug1: client_input_hostkeys: searching /home/zby/.ssh/known_hosts2 for 192.168.50.120 / (none)
debug1: client_input_hostkeys: hostkeys file /home/zby/.ssh/known_hosts2 does not exist
debug1: client_input_hostkeys: host key found matching a different name/address, skipping UserKnownHostsFile update
debug1: Remote: /home/zby/.ssh/authorized_keys:2: key options: agent-forwarding port-forwarding pty user-rc x11-forwarding
debug1: Remote: /home/zby/.ssh/authorized_keys:2: key options: agent-forwarding port-forwarding pty user-rc x11-forwarding
debug1: Sending environment.
debug1: channel 0: setting env LC_ADDRESS = "zh_CN.UTF-8"
debug1: channel 0: setting env LC_NAME = "zh_CN.UTF-8"
debug1: channel 0: setting env LC_MONETARY = "zh_CN.UTF-8"
debug1: channel 0: setting env LC_PAPER = "zh_CN.UTF-8"
debug1: channel 0: setting env LANG = "en_US.UTF-8"
debug1: channel 0: setting env LC_IDENTIFICATION = "zh_CN.UTF-8"
debug1: channel 0: setting env LC_TELEPHONE = "zh_CN.UTF-8"
debug1: channel 0: setting env LC_MEASUREMENT = "zh_CN.UTF-8"
debug1: channel 0: setting env LC_TIME = "zh_CN.UTF-8"
debug1: channel 0: setting env LC_NUMERIC = "zh_CN.UTF-8"
Welcome to Ubuntu 22.04.1 LTS (GNU/Linux 5.15.0-46-generic x86_64)

 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/advantage

0 updates can be applied immediately.

Failed to connect to https://changelogs.ubuntu.com/meta-release-lts. Check your Internet connection or proxy settings

Last login: Tue Aug 30 09:06:46 2022 from 192.168.50.188
(base) zby@student:~$ 

[crazyn2]

The vscodium has connected to server successfully after i reinstalled the openssh-server in server which was confusing and unbelievable. maybe it's due to the unstable network of server in the start time of upgrading to ubuntu 22.04

[jeanp413]

Great to hear its working 🎉

Let's keep this issue open to track upstream fix (mscdex/ssh2#1200) until is merged.