# nessus3 install issue on ubuntu — Liran Tal

how to fix Nessus3 and its missing dependency

Canonical: https://lirantal.com/blog/2006-07-14

![Cover artwork for nessus3 install issue on ubuntu](/_astro/photo-1468956398224-6d6f66e22c35.BePqp3CW_Zj88Tk.jpg)

The usual – you download a package, installs it, it complains about a missing dependency to run. Nessus3 .deb package requires `libssl.0.9.7` but well, ubuntu is so bleeding-edge that 0.9.8 is already there, and I know exactly what you’re thinking – `apt-get remove libssl.0.9.8 && apt-get install libssl.0.9.7` – well I dare you to try that and mess up about 300 packages on the system.

So whats a better way to solve this issue? Tricking nessus:

```
ln -s /usr/lib/libssl.so.0.9.8 /usr/lib/libssl.so.0.9.7
ln -s /usr/lib/libcrypto.so.0.9.8 /usr/lib/libcrypto.so.0.9.7
```

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Liran Tal is the author of the book [Node.js Secure Coding: Defending Against Command Injection Vulnerabilities](https://www.nodejs-security.com/)

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