Different address range. Are you on wifi? Are you picking up a different network from another router?
On Jul 17, 2014 2:13 PM, "Michael Havens" <bmike1@gmail.com> wrote:it seems I can't ssh from the host to any other computer though I can ssh from the clients to the host. (tested on two computers). It is strange, the ip adresses on the remote boxes seem to have changed. instead of being 192.168.0.x they are now 192.168.1.10x.gots to go to work now.
:-)~MIKE~(-:On Thu, Jul 17, 2014 at 1:47 PM, Michael Havens <bmike1@gmail.com> wrote:on the server it says:
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1308/sshd
tcp 0 0 127.0.0.1:22 127.0.0.1:56545 ESTABLISHED 19569/sshd: bmike1
tcp 0 0 127.0.0.1:56545 127.0.0.1:22 ESTABLISHED 19568/ssh
tcp6 0 0 :::22 :::* LISTEN 1308/sshd
tcp6 0 0 :::22 :::* LISTEN 2546/sshd
so it looks like both are listening.:-)~MIKE~(-:On Thu, Jul 17, 2014 at 1:04 PM, Michael Butash <michael@butash.net> wrote:sudo netstat -anp | grep tcp | grep LISTEN
-a == all
-n == do not resolve dns (slows it down significantly)
-p == show the app opening the socket (requires sudo to enumerate)
grep tcp == look for tcp-based sockets (most apps won't use udp)
grep LISTEN == look at listening sockets, vs established that indicated something *is* connected
This is a good one to remember, this shows all your "listening" sockets. Your ssh socket is outbound to another host, but doesn't look like sshd is listening on port 22, which won't let you in.
TCP/UDP sockets are your door into the system.
mb@host ~ $ sudo netstat -anp | grep tcp | grep ssh
[sudo] password for mb:
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 19847/sshd
tcp6 0 0 :::22 :::* LISTEN 19847/sshd
First is ipv4-based socket, second is ipv6-based. You should see similar, with 0.0.0.0 meaning it's listening on _all_ interfaces.
-mb
On 07/17/2014 12:28 PM, Michael Havens wrote:
it doesn't seem ssh failed at any point.I'm not sure how to run sshin debug mode but the man page implies to run it with the verbose flag:while on the remote system netstat prints 7 lines that is basically the second section (above).---edit out a lot of stuff--while the second section says:The first section says:okay,netsstat on the server prints out a lot of data.
Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 192.168.0.4:38521 lax17s01-in-f21.1:https ESTABLISHED
tcp 0 0 192.168.0.4:36523 lax17s01-in-f4.1e:https ESTABLISHED
tcp 0 0 localhost:45886 localhost:53919 ESTABLISHED
tcp 0 0 localhost:ssh localhost:56545 ESTABLISHED
tcp 0 0 localhost:44799 localhost:53919 ESTABLISHED
tcp 0 0 localhost:47157 localhost:53919 ESTABLISHED
tcp 0 0 localhost:53919 localhost:44799 ESTABLISHED
tcp 0 0 localhost:53919 localhost:47157 ESTABLISHED
tcp 0 0 localhost:56545 localhost:ssh ESTABLISHED
tcp 0 0 localhost:53919 localhost:45886 ESTABLISHED
tcp 0 0 192.168.0.4:37884 lax17s01-in-f0.1e:https ESTABLISHED
tcp 0 0 192.168.0.4:45304 lax17s01-in-f5.1e:https ESTABLISHED
tcp 0 0 192.168.0.4:36525 lax17s01-in-f4.1e:https ESTABLISHED
tcp6 1 0 ip6-localhost:53614 ip6-localhost:ipp CLOSE_WAIT
Active UNIX domain sockets (w/o servers)
Proto RefCnt Flags Type State I-Node Path
unix 18 [ ] DGRAM 11578 /dev/log
unix 2 [ ] DGRAM 10914 /var/run/wpa_supplicant/wlan0
unix 3 [ ] STREAM CONNECTED 343530
unix 3 [ ] STREAM CONNECTED 198728
unix 3 [ ] STREAM CONNECTED 198167
unix 3 [ ] STREAM CONNECTED 198683
:~$ ssh -v mike@192.168.1.101
OpenSSH_6.6.1, OpenSSL 1.0.1f 6 Jan 2014
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to 192.168.1.101 [192.168.1.101] port 22.
debug1: connect to address 192.168.1.101 port 22: Connection timed out
ssh: connect to host 192.168.1.101 port 22: Connection timed out
bmike1@CQ57-1:~$ ssh -vv mike@192.168.1.101
OpenSSH_6.6.1, OpenSSL 1.0.1f 6 Jan 2014
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to 192.168.1.101 [192.168.1.101] port 22.
debug1: connect to address 192.168.1.101 port 22: Connection timed out
ssh: connect to host 192.168.1.101 port 22: Connection timed out
:~$ ps -aef | grep sshd
root 1308 1 0 Jul15 ? 00:00:00 /usr/sbin/sshd -D
bmike1 19566 4242 0 11:53 pts/2 00:00:00 grep --colour=auto sshd
:-)~MIKE~(-:
On Thu, Jul 17, 2014 at 12:33 AM, James Mcphee <jmcphe@gmail.com> wrote:
Verify openssh is enabled on the server with netstat. Verify you can connect to port 22 from client to server. Run ssh in debug mode to see messages. When you hit a point that it fails, then you have a better idea of what's wrong.
On Wed, Jul 16, 2014 at 9:54 PM, Michael Havens <bmike1@gmail.com> wrote:
---------------------------------------------------okay, so I bought a used computer to do Linux from scratch on. Well, I'm going to ssh from my primary computer to the new computer but got a 'Connection timed out' error. After googling for a bit I discovered ufw was to blame.
after I disabled the firewall I could ssh from 192.168.1.101 <parasite> to 192.168.0.4 <host>
the error I got going the other way was the connection timed out error:
ssh mike@192.168.1.101
ssh: connect to host 192.168.1.101 port 22: Connection timed out
After googling some more I thought perhaps openssh-server wasn't installed... but it is. So please.... what is the problem? I verifed openssh-client is installed but I don't know what it could be. Could you help me out?
:-)~MIKE~(-:
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