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I just got a fairly old model of Raspberry Pi (Model B with 512MB RAM). As I don't have an extra keyboard or screen, I'm trying to hook it up via ethernet with my laptop.

I copied a Raspbian image to a 16GB sd card. (2017-09-07-raspbian-stretch). I also made an empty file named "ssh" under /boot

I enabled IPv4 to share the network via ethernet, and used nmap to check the IP of my Pi. Result of the nmap is:

$nmap -sn 192.168.1.0/24

Starting Nmap 7.01 ( https://nmap.org ) at 2017-10-29 17:29 EET
Nmap scan report for 192.168.1.106
Host is up (0.00018s latency).
Nmap scan report for 192.168.1.253
Host is up (0.12s latency).
Nmap done: 256 IP addresses (2 hosts up) scanned in 10.13 seconds

According to ifconfig, my laptop's IP is 192.168.1.106, and I believe that 192.168.1.253 is the Raspberry.

I pinged 192.168.1.253, and it went through smoothly.

Then I tried to SSH into the Raspberry, but I always get "Connection timed out":

$ ssh -v [email protected]
OpenSSH_7.2p2 Ubuntu-4ubuntu2.1, OpenSSL 1.0.2g  1 Mar 2016
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to 192.168.1.253 [192.168.1.253] port 22.
debug1: connect to address 192.168.1.253 port 22: Connection timed out
ssh: connect to host 192.168.1.253 port 22: Connection timed out

As for power issues, I have LEDs PWR (red), FDX (green), LNK (green) and 100 (orange) on. Does that mean that the power is OK? I only have an SD card, ethernet cable, and power connected to the Raspberry.

I don't get why can't I SSH to the Raspberry. It would be really nice if anyone can help.

My laptop is on Ubuntu 16.04.

I found that in my Raspberry, under /etc, there's no folder /etc/folder, nor is there the file "dhcpd.conf". Could this be the cause of the problem?

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2
  • nmap -sT -p22 192.168.1.0/24 should confirm whether the port is really open. If so you should check the logs on the SD card; unfortunately the default logging configuration may complicate that -- you may need to apply journald, since it does not leave a plain text log, or you may get lucky and find one in /var/log.
    – goldilocks ♦
    Commented Oct 29, 2017 at 14:55
  • What do you get for the result of arp 192.168.1.253?
    – BowlOfRed
    Commented Oct 29, 2017 at 22:57

1 Answer 1

Reset to default
-1

For security, on most RaspberryPi distributions the SSH service needs to be activated. At www.raspberrypi.org are these instructions:

Launch Raspberry Pi Configuration from the Preferences menu
Navigate to the Interfaces tab
Select Enabled next to SSH
Click OK
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3
  • I don't believe this is the issue—the OP says that they created /boot/ssh, which also works (see point 3 of the link you gave). It looks like it's something more complex instead.
    – Aurora0001
    Commented Oct 29, 2017 at 18:14
  • I see what you are saying - @Aurora0001, perhaps you can explain. This method of dropping a empty file named ssh in the /boot directory, is is permanent or does it just work for that one boot up? I am asking as the instructions say the file is deleted after boot up.
    – st2000
    Commented Oct 30, 2017 at 12:10
  • I believe the setting is persistent; the file is just deleted so that if you later disable it, it won't immediately be re-enabled on next boot.
    – Aurora0001
    Commented Oct 30, 2017 at 15:44

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