---
title: Install sectrain on Fedora using the Snap Store | Snapcraft
description: Get the latest version of sectrain for on Fedora - A training tool displaying
  some techniques for secure web app development
url: https://snapcraft.io/install/sectrain/fedora
---

[Canonical Snapcraft](https://snapcraft.io/)

# Install sectrain on **Fedora**

# sectrain

[Joe McManus (joesecurity)](https://snapcraft.io/publisher/joesecurity "View all snaps from Joe McManus (joesecurity)")

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* [Education](https://snapcraft.io/search?categories=education)
* [Security](https://snapcraft.io/search?categories=security)

[Install](https://snapcraft.io/install/sectrain/fedora#install)

#### A training tool displaying some techniques for secure web app development

**Overview**
sectrain is a program to illustrate some of the security issues common in applications such as XSS and buffer overflows along with how to stop them. Currently this shows example in PHP and
Python.

Still to be done is include javascript, SQLi and C++ buffer overflows, should be done shortly.

**Installation**

The simplest way to install sectrain is to use the snap

```
 sudo snap install sectrain
```

\*\*Web Starting \*\*

```
 sectrain startweb
```

**Web Stopping**

```
 sectrain stopweb
```

\*\*Web Usage \*\*

Open your browser to your host on port 1984, then browse choose the secure or insecure links. Try an exploit such as :

```
 "><script>alert('xss');</script>
```

You will see how sanitizing the input/output helps solve these issues.

**Python Buffer Overflows**

There are two examples to look at, pybuffgood and pybuffbad, sending in too long of a string breaks it. Simple, but still a good way to illustrate the point.

```
 sectrain pybuffbad  abcdefghijkl
 sectrain pybuffgood abcdefghijkl
```

Clearly more can be done, but this is just to aid in getting people interested in fixing their code.

### Package name

* sectrain

---

### License

* GPL-3.0+

---

### Last updated

* 8 October 2023 - latest/stable
* 8 October 2023 - latest/edge

This snap hasn't been updated in a while. It might be unmaintained and have stability or security issues.

---

##### Report a Snap Store violation

* [Report this Snap](https://snapcraft.io/install/sectrain/fedora#report-snap-modal)

---

## Enable snaps on Fedora and install sectrain

Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.

Snaps are discoverable and installable from the [Snap Store](https://snapcraft.io/store), an app store with an audience of millions.

### Enable snapd

Snap can be installed on Fedora from the command line:

```
sudo dnf install snapd
```

Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly.

To enable *classic* snap support, enter the following to create a symbolic link between `/var/lib/snapd/snap` and `/snap`:

```
sudo ln -s /var/lib/snapd/snap /snap
```

### Install sectrain

To install sectrain, simply use the following command:

```
sudo snap install sectrain
```

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### More things to do…

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Browse and find snaps from the convenience of your desktop using the snap store snap.

#### [Learn more about snaps](https://snapcraft.io/docs)

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