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<title>Remote anonymous access setup (cockpit + ssh through tor)</title>
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updated the directory layout
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<a href="../index.html">Previous Page</a></br></br><p><img src="../../assets/img/user.png" width="50px" height="50px"> <ba>nihilist@mainpc - 2024-05-02</ba></p>
updated
2024-07-25 12:23:36 +02:00
<h1>Remote anonymous access setup (cockpit + ssh through tor) </h1>
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<h2><b>Initial Setup </b></h2>
<p>On your server, edit the torrc file like so:</p>
<pre><code class="nim">
[ Datura ] [ /dev/pts/9 ] [~]
→ cat /etc/tor/torrc
HiddenServiceDir /var/lib/tor/onions/daturab6drmkhyeia4ch5gvfc2f3wgo6bhjrv3pz6n7kxmvoznlkq4yd.onion/
HiddenServicePort 22 127.0.0.1:22
HiddenServicePort 80 127.0.0.1:4443
</code></pre>
<p>Then just edit your local .ssh config to access it:</p>
<pre><code class="nim">
[ mainpc ] [ /dev/pts/7 ] [~]
→ cat .ssh/config
Host web-gw2024-dedi
User root
hostname 37.27.32.233
IdentityFile ~/.ssh/torified
Host tortura
User root
hostname daturab6drmkhyeia4ch5gvfc2f3wgo6bhjrv3pz6n7kxmvoznlkq4yd.onion
IdentityFile ~/.ssh/torified
proxyCommand ncat --proxy 127.0.0.1:9050 --proxy-type socks5 %h %p
Host datura
User root
hostname 65.109.30.253
IdentityFile ~/.ssh/torified
</code></pre>
<p>Then connect to the host via SSH:</p>
<pre><code class="nim">
[ mainpc ] [ /dev/pts/5 ] [~]
→ systemctl restart tor@default
[ mainpc ] [ /dev/pts/5 ] [~]
→ ssh tortura
The authenticity of host 'daturab6drmkhyeia4ch5gvfc2f3wgo6bhjrv3pz6n7kxmvoznlkq4yd.onion (<<b></b>no hostip for proxy command>)' can't be established.
ED25519 key fingerprint is SHA256:A0CFTeUixGoK96VenBQ7Z2U8kX5olDCqBvBNeJUfs6I.
This host key is known by the following other names/addresses:
~/.ssh/known_hosts:144: [hashed name]
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added 'daturab6drmkhyeia4ch5gvfc2f3wgo6bhjrv3pz6n7kxmvoznlkq4yd.onion' (ED25519) to the list of known hosts.
Enter passphrase for key '/home/nihilist/.ssh/torified':
Linux Datura 6.1.0-18-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.76-1 (2024-02-01) x86_64
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Thu May 2 14:47:23 2024 from 178.255.149.178
[ Datura ] [ /dev/pts/11 ] [~]
→
</code></pre>
<p>So <b>that's how you do it if you cannot access the server via a public IP directly</b>, but keep in mind that the latency is most likely unbearable due to the 6 hops circuit (since we're doing it via the .onion link, rather than connecting to the IP directly)</p>
<p> so you're probably better off just connecting to the IP directly but <b>forcing the SSH connection through tor using torsocks, which greatly reduces the latency (3 hops instead of 6)</b>:</p>
<pre><code class="nim">
[ mainpc ] [ /dev/pts/7 ] [~]
→ torsocks ssh datura
Enter passphrase for key '/home/nihilist/.ssh/torified':
Linux Datura 6.1.0-18-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.76-1 (2024-02-01) x86_64
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Thu May 2 15:48:08 2024 from 127.0.0.1
[ Datura ] [ /dev/pts/12 ] [~]
→ id
uid=0(root) gid=0(root) groups=0(root)
</code></pre>
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<div id="anon2">
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<h2><b>Cockpit .onion setup</b></h2> </br> </br>
<p>Let's install cockpit from the apt repositories: </p>
<pre><code class="nim">
[ Datura ] [ /dev/pts/11 ] [~]
→ apt install cockpit -y
[ Datura ] [ /dev/pts/11 ] [~]
→ systemctl status cockpit
● cockpit.service - Cockpit Web Service
Loaded: loaded (/lib/systemd/system/cockpit.service; static)
Active: active (running) since Fri 2024-05-03 13:30:51 CEST; 2min 5s ago
TriggeredBy: ● cockpit.socket
Docs: man:cockpit-ws(8)
Process: 3563910 ExecStartPre=/usr/lib/cockpit/cockpit-certificate-ensure --for-cockpit-tls (code=exited, status=0/SUCCESS)
Main PID: 3563926 (cockpit-tls)
Tasks: 1 (limit: 77002)
Memory: 2.4M
CPU: 355ms
CGroup: /system.slice/cockpit.service
└─3563926 /usr/lib/cockpit/cockpit-tls
May 03 13:30:51 Datura systemd[1]: Starting cockpit.service - Cockpit Web Service...
May 03 13:30:51 Datura cockpit-certificate-ensure[3563918]: /usr/lib/cockpit/cockpit-certificate-helper: line 25: sscg: command not found
May 03 13:30:51 Datura cockpit-certificate-ensure[3563919]: ......+.....+.+......+...+.........+...+..............+.+...+..+...+.......+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*...+...+++++++++++++++++++++++++++++++>
May 03 13:30:51 Datura cockpit-certificate-ensure[3563919]: .+.........+...+...+.......+........+....+..............+.........+......+.+......+..+.+..+...+....+...+.........+.....+....+.....+++++++++++++++++++++++++++++++++++++++++++++++++>
May 03 13:30:51 Datura cockpit-certificate-ensure[3563919]: -----
May 03 13:30:51 Datura systemd[1]: Started cockpit.service - Cockpit Web Service.
May 03 13:30:51 Datura cockpit-tls[3563926]: cockpit-tls: gnutls_handshake failed: A TLS fatal alert has been received.
May 03 13:30:55 Datura cockpit-tls[3563926]: cockpit-tls: gnutls_handshake failed: A TLS fatal alert has been received.
</code></pre>
<p>once it completes, just connect to it on port 9090:</p>
<img class="imgRz" src="1.png">
<p>ignore the self-signed HTTPs warning and enable javascript afterward:</p>
<img class="imgRz" src="2.png">
<p>In the Tor browser, select the "Safer" security level to be able to browse to the cockpit service with javascript:</p>
<img class="imgRz" src="3.png">
<img class="imgRz" src="4.png">
<img class="imgRz" src="5.png">
<img class="imgRz" src="6.png">
<p>if it refuses the login, make sure the user has proper sudo access like so::</p>
<pre><code class="nim">
[ Datura ] [ /dev/pts/11 ] [~]
→ useradd nihilist
[ Datura ] [ /dev/pts/11 ] [~]
→ passwd nihilist
New password:
Retype new password:
passwd: password updated successfully
[ Datura ] [ /dev/pts/11 ] [~]
→ usermod -aG sudo nihilist
[ Datura ] [ /dev/pts/11 ] [~]
→ visudo
# User privilege specification
root ALL=(ALL:ALL) ALL
nihilist ALL=(ALL:ALL) ALL
</code></pre>
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