Linked Questions

1
vote
3answers
2k views

Secure an Ubuntu OpenSSH server from Brute force attacks but without a firewall or SSH key pair? [duplicate]

I use Ubuntu 16.04 and seek to harden my SSH authentication in a special manner. The current situation: I have a machine with a minimal Ubuntu server I use mainly to transfer files to via its local ...
1
vote
0answers
56 views

Secure SSH Server from brute-force? [duplicate]

I'm just a newbie in Linux and recently got a VPS (Ubuntu 14.04 LTS Server). How can I secure its ssh server from brute-force attacks?
29
votes
2answers
13k views

Disable password access through SSH?

I'm setting up a server for backing up my desktop box remotely. I want to prevent remote password access to the server, permitting only users with private keys (AKA my desktop box) to access it. How ...
12
votes
4answers
11k views

Is someone trying to hack into my server? What can I do?

A few weeks ago I posted a question here about some ssh issues I was having with an Ubuntu 12.04 box. Fast forward to today and I am trying to allow someone else access to the machine, but they keep ...
2
votes
5answers
1k views

who is trying to brute-force my password?

I was looking into my log files on my server and I found the following lines in: /var/log/.auth.log.1: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruse r= rhost=...
2
votes
3answers
43k views

Ubuntu Server 12.04 remote desktop access

I have an Ubuntu 12.04 server at home with GUI running. It does many things, like Apache virtual hosts (several WordPress sites hosted for me and my mates), Samba server, Mini DLNA server and some ...
6
votes
1answer
2k views

How to permanently mount a remote share?

I've got an NAS file server on my local network, in my windows days I just mapped a drive to it and it was just there all the time. I'm having trouble doing the same in Ubuntu. I had done this ...
4
votes
1answer
6k views

Tens of thousands of failed/denied SSH login attempts [closed]

Recently a few friends and I came up with an idea for an app. To facilitate the creation of it, we set up LAMP on an Ubuntu Server 12.04. This box is running from my home. We've set up 3 user accounts....
1
vote
2answers
902 views

connecting and copying files with scp — ubuntu 10.04

I have a work computer. I have a home computer. I want to be able to share files between with scp, both our computers are behind routers, which assign a local ip. 198.168.0.* As well as knowing their ...
4
votes
1answer
431 views

How to stop SSH filesystem from discarding root permissions after every command?

i have a small bash script that mounts my sshfs... problem is it ask for the server/host password for every mount... i have four mounts and i have to enter it every time for 4 times and its tiresome,...
0
votes
3answers
179 views

fresh newly rented server, spammed with root login attempts

Hello i've just rented a server at hetzner.de, and decided to follow the toturials at linode for securing my server! i've just completed setting up OSSEC and then right off the bat i get spammed with ...
0
votes
0answers
553 views

Cannot SSH into server using non standard port

I am running Ubuntu Xenial (16.0.4 LTS) both on my laptop and my server. I have strengthened security on the server using the techniques described here and here. I am able to SSH from my laptop to ...
1
vote
0answers
429 views

How to tell if my Ubuntu server is host to brute force SSH attack [closed]

I have an uneasy feeling that my Ubuntu 16.04 machine has been compromised, and is being used as a host for brute force SSH attacks. I think this because I've been blocked from visiting certain IPs (...
2
votes
1answer
139 views

Ubuntu Server 14.04 LTS includes unknown SFTP server

I've installed Ubuntu Server 14.04, and when I try to connect it with browser sftpd://10.0.0.100 it lets me see my files after I type my username and password. It's weird, because I haven't installed ...
1
vote
1answer
111 views

What can happens when a server on the local network is breached

I am currently trying to get to grips with server administration. Right now I am setting up security measures on an ssh + LAMP server running at home in my local network. I am following the ...

15 30 50 per page