Install TaskServer (taskd) on Fedora 26

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TaskWarrior is an open source time management tool that is an improvement on the Todo.txt application and it's clones. Due to the fact that the average person uses multiple devices/platforms in their daily schedule, it is critical to have the ability to have a centralized repository where the data can be accessed and updated from any device. This tutorial will focus on setting up both the server, called TaskServer (taskd), and the client, called TaskWarrior (task), allowing multiple client devices to access and exchange data securely.

It possesses the following features:

Unlimited Tasks
Task Prioritizing
Search/Filtering
Tagging
Automatic Syncing
Automatic Backup
Full Control & Privacy
Encrypted Communication

Prerequisites

A Fedora 26 x64 server instance.
A sudo user.
Domain name pointed to Vultr instance (taskd.example.com)

Step 1: Update the System

sudo dnf check-update || sudo dnf upgrade -y

Step 2: Install TaskServer (taskd)

Use Fedora's Dandified Yum (dnf) package tool to install the TaskServer (taskd).
```
sudo dnf install taskd -y
```

Step 3: Configure TaskServer (taskd)

In order for TaskServer (taskd) to communicate and sync with TaskWarrior (task) clients, you will need to use the generation scripts found under /etc/pki/taskd/ to generate server and client certificates/keys. Elevate to the root user using the command below and change directory to /etc/pki/taskd/.
```
sudo su -

cd /etc/pki/taskd/
```
Use the nano program to create a vars file in order to generate a self-signed Root CA.
```
nano vars
```

Add the following text to the vars file. Change ORGANIZATION, CN, COUNTRY, STATE and LOCALITY to your satisfaction.

    BITS=4096

    EXPIRATION_DAYS=365

    ORGANIZATION="Vultr.com Inc."

    CN=taskd.example.com

    COUNTRY=US

    STATE="New York"

    LOCALITY="New York"

Generate the self-signed Root CA & cert, server key & cert and server revocation list (optional).
```
./generate.ca

./generate.server

./generate.crl
```

These commands will create the following files (ca.cert.pem, ca.key.pem, server.cert.pem, server.key.pem, and server.crl.pem) inside the /etc/pki/taskd/ directory. In order for TaskServer (taskd) to start, the ownership and permissions on the certificates and keys generated must be modified to allow TaskServer (taskd) to access them. Run the commands below to change them.

    chown taskd.taskd ca.cert.pem ca.key.pem server.cert.pem server.crl.pem server.key.pem

    chmod 400 ca.cert.pem ca.key.pem server.cert.pem server.crl.pem server.key.pem

Configure the TaskServer (taskd) daemon configuration file.

export TASKDDATA=/var/lib/taskd

cd $TASKDDATA

ln -s /etc/pki/taskd/ca.cert.pem .

ln -s /etc/pki/taskd/server.cert.pem .

ln -s /etc/pki/taskd/server.crl.pem .

ln -s /etc/pki/taskd/server.key.pem .

taskd init

taskd config server 0.0.0.0:53589

taskd config --force ca.cert $TASKDDATA/ca.cert.pem

taskd config --force server.cert $TASKDDATA/server.cert.pem

taskd config --force server.crl $TASKDDATA/server.crl.pem

taskd config --force server.key $TASKDDATA/server.key.pem

taskd config log /var/log/taskd/taskd.log

taskd config pid.file /var/run/taskd.pid

Enable and start the TaskServer (taskd) daemon.

systemctl enable taskd

systemctl start taskd

TaskServer (taskd) is now installed and setup on your Fedora 26 instance.

Step 4: Configure TaskWarrior Client Certificate & Key

Refer to the Step 5: Configure TaskWarrior Client Certificate & Key section in the Install TaskServer (taskd) On CentOS 7 tutorial.

If you need additional reading material, refer to the TaskWarrior (task) documentation here for basic usage and other related topics.

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