Eternal Terminal is a remote shell that automatically reconnects without interrupting the session.
Website: https://mistertea.github.io/EternalTerminal/.
Circle:
Linux: 
The easiest way to install is using Homebrew:
brew install MisterTea/et/et
If the install fails on including csignal, see MisterTea#662 (comment)
Then if you want a daemon to launch etserver on every boot:
On m1 (Apple Silicon) Macs:
sudo sed 's:/usr/local/bin/etserver:/opt/homebrew/bin/etserver:g' ../init/launchd/homebrew.mxcl.et.plist | sudo tee /Library/LaunchDaemons/homebrew.mxcl.et.plist
sudo launchctl load -w /Library/LaunchDaemons/homebrew.mxcl.et.plist
On x86 Macs:
sudo cp ../init/launchd/homebrew.mxcl.et.plist /Library/LaunchDaemons/homebrew.mxcl.et.plist
sudo launchctl load -w /Library/LaunchDaemons/homebrew.mxcl.et.plist
Alternatively, a package is available in MacPorts:
sudo port install et
For Ubuntu, use our PPA:
sudo add-apt-repository ppa:jgmath2000/et
sudo apt-get update
sudo apt-get install et
Or see "Debian/Ubuntu" below to install and build from source (e.g., for ARM).
For debian, use our deb repo. For buster:
echo "deb https://github.com/MisterTea/debian-et/raw/master/debian-source/ buster main" | sudo tee -a /etc/apt/sources.list.d/et.list
curl -sSL https://github.com/MisterTea/debian-et/raw/master/et.gpg | sudo tee /etc/apt/trusted.gpg.d/et.gpg >/dev/null
sudo apt update
sudo apt install et
Up to the present day the only way to install is to build from source.
sudo dnf install epel-release
sudo dnf install et
On FreeBSD, use:
pkg install eternalterminal
sudo dnf install et
zypper ar -f obs://network
zypper ref
zypper in EternalTerminal
Install dependencies:
-
Fedora (tested on 25):
sudo dnf install boost-devel libsodium-devel protobuf-devel \ protobuf-compiler cmake gflags-devel libcurl-devel -
Gentoo:
sudo emerge dev-libs/boost dev-libs/libsodium \ dev-libs/protobuf dev-util/cmake dev-cpp/gflags
Download and install from source:
git clone --recurse-submodules https://github.com/MisterTea/EternalTerminal.git
cd EternalTerminal
mkdir build
cd build
cmake ../
make
sudo make install
Eternal Terminal works under WSL (Windows Subsystem for Linux). Follow the ubuntu instructions.
See docker/README.md
Verify that the client is installed correctly by looking for the et executable: which et.
Verify that the server is installed correctly by checking the service status: systemctl status et. On some operating systems, you may need to enable and start the service manually: sudo systemctl enable --now et.
You are ready to start using ET!
If you'd like to modify the server settings (e.g. to change the listening port), edit /etc/et.cfg.
ET uses ssh for handshaking and encryption, so you must be able to ssh into the machine from the client. Make sure that you can ssh user@hostname.
ET uses TCP, so you need an open port on your server. By default, it uses 2022.
Once you have an open port, the syntax is similar to ssh. Username is default to the current username starting the et process, use -u or user@ to specify a different if necessary.
et hostname (etserver running on default port 2022, username is the same as current)
et user@hostname:8000 (etserver running on port 8000, different user)
You can specify a jumphost and the port et is running on jumphost using --jumphost and --jport. If no --jport is given, et will try to connect to default port 2022.
et hostname -jumphost jump_hostname (etserver running on port 2022 on both hostname and jumphost)
et hostname:8888 --jumphost jump_hostname --jport 9999
Additional arguments that et accept are port forwarding pairs with option -t "18000:8000, 18001-18003:8001-8003", a command to run immediately after the connection is setup through -c.
Starting from the latest release, et supports parsing both user-specific and system-wide ssh config file. The config file is required when your sshd on server/jumphost is listening on a port which is not 22. Here is an example ssh config file showing how to setup when
- there is a jumphost in the middle
- sshd is listening on a port which is not 22
- connecting to a different username other than current one.
Host dev
HostName 192.168.1.1
User fred
Port 5555
ProxyJump user@jumphost.example.org:22
With the ssh config file set as above, you can simply call et with
et dev (etserver running on port 2022 on both hostname and jumphost)
et dev:8000 -jport 9000 (etserver running on port 9000 on jumphost)
To build Eternal Terminal on Mac, the easiest way is to grab dependencies with Homebrew:
brew install autoconf automake libtool
git clone --recurse-submodules https://github.com/MisterTea/EternalTerminal.git
cd EternalTerminal
mkdir build
cd build
cmake ../
make && sudo make install
To run an et server for testing, run ./etserver. To run an et
server daemon persistently across reboots:
sudo cp ../init/launchd/homebrew.mxcl.et.plist /Library/LaunchDaemons
sudo launchctl load -w /Library/LaunchDaemons/homebrew.mxcl.et.plist
Grab the deps and then follow this process.
Debian/Ubuntu Dependencies:
sudo apt install libboost-dev libsodium-dev autoconf libtool \
libprotobuf-dev protobuf-compiler libgflags-dev libutempter-dev libcurl4-openssl-dev \
build-essential ninja-build cmake git zip
Fetch source, build and install:
git clone --recurse-submodules https://github.com/MisterTea/EternalTerminal.git
cd EternalTerminal
mkdir build
cd build
# For ARM (including OS/X with apple silicon):
if [[ $(uname -a | grep 'arm\|aarch64') ]]; then export VCPKG_FORCE_SYSTEM_BINARIES=1; fi
cmake ../
make package
sudo dpkg --install *.deb
sudo cp ../etc/et.cfg /etc/
Once built, the binary only requires libgflags-dev and libprotobuf-dev.
Install dependencies:
sudo yum install epel-release
sudo yum install cmake3 boost-devel libsodium-devel protobuf-devel \
protobuf-compiler gflags-devel protobuf-lite-devel libcurl-devel \
perl-IPC-Cmd perl-Data-Dumper libunwind-devel libutempter-devel
Install scl dependencies
sudo yum install centos-release-scl
sudo yum install devtoolset-11 devtoolset-11-libatomic-devel rh-git227
Download and install from source (see #238 for details):
git clone --recurse-submodules https://github.com/MisterTea/EternalTerminal.git
cd EternalTerminal
mkdir build
cd build
scl enable devtoolset-11 rh-git227 'cmake3 ../'
scl enable devtoolset-11 'make && sudo make install'
sudo cp ../systemctl/et.service /etc/systemd/system/
sudo cp ../etc/et.cfg /etc/
Find the actual location of et:
which etserver
Correct the service file (see #180 for details).
sudo sed -ie "s|ExecStart=[^[:space:]]*[[:space:]]|ExecStart=$(which etserver) |" /etc/systemd/system/et.service
Alternativelly, open the file /etc/systemd/system/et.service in an editor and correct the ExectStart=... line to point to the correct path of the etserver binary.
ExecStart=/usr/local/bin/etserver --cfgfile=/etc/et.cfg
Reload systemd configs:
sudo systemctl daemon-reload
Start the et service:
sudo systemctl enable --now et.service
Builder Dockerfiles are located at deployment/. Supported OSes: CentOS 8, openSUSE and Ubuntu.
If you have any problems with installation or usage, please file an issue on github.
- Jason Gauci: https://github.com/MisterTea
- Ailing Zhang: https://github.com/ailzhang
- James Short: https://github.com/jshort