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Question

All Droplets after Snapshot blocks Port 22 london location

Posted March 14, 2018 1.9k views
ApacheUbuntu 16.04

Hi, I am using Apache 16.04 with Ispconfig. Every time i do a Snapshot with the following steps

shutdown -h now
and then i wait for couple of seconds and then i start doing the snapshot from the digitalocean Control panel . after doing that i power on my droplet from the control panel .

After that i get this issue

1) cant ssh into the server get
ssh: connect to host my-ip-address port 22: Connection refused
2) site is down on the browser also
i get “ This site can’t be reached ”
3) Ip is down on the browser

What is the issue over here . after the snapshot does it block all my ports
This have happened with 4 of my droplets in this month ( MARCH ) so i had to destroy and Install everything back again. Its time consuming. when i contact the support they put my droplet in recovery mode .

Kindly Please help me figure this issue .

Thanks

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sheldondesouza
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sheldondesouza

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5 answers
kamaln7 March 14, 2018

It sounds like none of the Droplet’s services are being started on reboot. If you try to access your Droplet using the Remote Console in the control panel, do you see any errors?

Try to log in as root (you can reset your password through the control panel if necessary) and run the following command to start OpenSSH:

sudo systemctl start ssh
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sheldondesouza March 15, 2018

Hi thanks a lot buddy i fixed that had to start all the ports in the ufw firewall .
Can you please help me by checking if all the belwo ports are correct and are not vernuable to any attack

oot@cloud:~# ufw status numbered
Status: active

 To                         Action      From
 --                         ------      ----

[ 1] 22 ALLOW IN Anywhere

[ 2] 22/tcp ALLOW IN Anywhere

[ 3] 80 ALLOW IN Anywhere

[ 4] 443 ALLOW IN Anywhere

[ 5] 21/tcp ALLOW IN Anywhere

[ 6] 6000:6007/tcp ALLOW IN Anywhere

[ 7] 6000:6007/udp ALLOW IN Anywhere

[ 8] Anywhere ALLOW IN 15.15.15.51

[ 9] Anywhere ALLOW IN 15.15.15.0/24

[10] 22 ALLOW IN 15.15.15.0/24

[11] 80 on eth0 ALLOW IN Anywhere

[12] 3306 on eth1 ALLOW IN Anywhere

[13] 80,443/tcp ALLOW IN Anywhere

[14] 25 ALLOW IN Anywhere

[15] 143 ALLOW IN Anywhere

[16] 993 ALLOW IN Anywhere

[17] 110 ALLOW IN Anywhere

[18] 995 ALLOW IN Anywhere

[19] 22 (v6) ALLOW IN Anywhere (v6)

[20] 22/tcp (v6) ALLOW IN Anywhere (v6)

[21] 80 (v6) ALLOW IN Anywhere (v6)

[22] 443 (v6) ALLOW IN Anywhere (v6)

[23] 21/tcp (v6) ALLOW IN Anywhere (v6)

[24] 6000:6007/tcp (v6) ALLOW IN Anywhere (v6)

[25] 6000:6007/udp (v6) ALLOW IN Anywhere (v6)

[26] 80 (v6) on eth0 ALLOW IN Anywhere (v6)

[27] 3306 (v6) on eth1 ALLOW IN Anywhere (v6)

[28] 80,443/tcp (v6) ALLOW IN Anywhere (v6)

[29] 25 (v6) ALLOW IN Anywhere (v6)

[30] 143 (v6) ALLOW IN Anywhere (v6)

[31] 993 (v6) ALLOW IN Anywhere (v6)

[32] 110 (v6) ALLOW IN Anywhere (v6)

[33] 995 (v6) ALLOW IN Anywhere (v6)

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sheldondesouza March 15, 2018
UFW Essentials: Common Firewall Rules and Commands
by Mitchell Anicas
by Erika Heidi
UFW (uncomplicated firewall) is a firewall configuration tool that runs on top of `iptables`, included by default within Ubuntu distributions. It provides a streamlined interface for configuring common firewall use cases via the command line. This cheat sheet-style guide provides a quick reference to common UFW use cases and commands, including examples of how to allow and block services by port, network interface, and source IP address.
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sheldondesouza March 15, 2018

The issue was that i didnt had setup my firewall and after snapshot and power off and on all the firewall were blocked so to solve this i had to follow this usefull links

https://askubuntu.com/questions/144364/ssh-connect-to-host-myremotehost-com-port-22-connection-refused
https://www.howtoforge.com/tutorial/ufw-uncomplicated-firewall-on-ubuntu-15-04/

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pinzer October 19, 2019
[deleted]
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