Linux Error Ssh_exchange_identification Connection Closed By Remote Host
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here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more ssh_exchange_identification: connection closed by remote host ubuntu about Stack Overflow the company Business Learn more about hiring developers or posting ads git ssh_exchange_identification: connection closed by remote host with us Unix & Linux Questions Tags Users Badges Unanswered Ask Question _ Unix & Linux Stack Exchange is a question ssh_exchange_identification: connection closed by remote host aix and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The ssh_exchange_identification: connection closed by remote host windows best answers are voted up and rise to the top ssh_exchange_identification: Connection closed by remote host (not using hosts.deny) up vote 38 down vote favorite 11 I'm not using hosts.allow or hosts.deny, further more SSH works from my windows-machine (same laptop, different hard drive) but not my Linux machine. ssh -vvv root@host -p port gives: OpenSSH_6.6, OpenSSL 1.0.1f 6 Jan 2014 debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 20: Applying
Connection Closed By Remote Host Ssh
options for * debug2: ssh_connect: needpriv 0 debug1: Connecting to host [host] port
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Ssh_exchange_identification Connection Closed By Remote Host Rhel
and policies of this site About Us Learn more about Stack Overflow ssh_exchange_identification: connection closed by remote host cygwin the company Business Learn more about hiring developers or posting ads with us Unix & Linux Questions Tags Users sftp ssh_exchange_identification: connection closed by remote host Badges Unanswered Ask Question _ Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. Join them; it only http://unix.stackexchange.com/questions/128894/ssh-exchange-identification-connection-closed-by-remote-host-not-using-hosts-d takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Intermittent 'ssh_exchange_identification: Connection closed by remote host' error up vote 3 down vote favorite 2 While there are many questions on this site and others addressing this very issue, I haven't yet found one http://unix.stackexchange.com/questions/156908/intermittent-ssh-exchange-identification-connection-closed-by-remote-host-err that seems to address what I'm experiencing. When trying to ssh a linux box from a MBpro running Lion, I get the following error: gjohnson5@Gentrys-MacBook-Pro:~$ ssh -v user@server_name OpenSSH_5.6p1, OpenSSL 0.9.8y 5 Feb 2013 debug1: Reading configuration data /etc/ssh_config debug1: Applying options for * debug1: Connecting to server_name[ip_address] port 22. debug1: Connection established. debug1: identity file /Users/gjohnson5/.ssh/id_rsa type -1 debug1: identity file /Users/gjohnson5/.ssh/id_rsa-cert type -1 debug1: identity file /Users/gjohnson5/.ssh/id_dsa type -1 debug1: identity file /Users/gjohnson5/.ssh/id_dsa-cert type -1 ssh_exchange_identification: Connection closed by remote host The strange thing is that I get this error intermittently. Sometimes rebooting my machine and trying again will get me into the server no problem. Other times, the error persists. Occasionally, I will successfully log on, close the connection, try to reconnect a few seconds later, and then receive the error. Now, I've tried clearing the ~/.ssh/known_hosts file, and I've found that trying to log on as a different user on my same machine still throws the error. I cannot check /etc/hosts.allow and /etc/hosts.deny since I cannot access the server and my employer's IT is, unfortunately, being unresponsive. I can't
communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn http://askubuntu.com/questions/730361/openssh-intermittent-error-ssh-exchange-identification-connection-closed-by-r more about Stack Overflow the company Business Learn more about hiring developers or posting http://serverfault.com/questions/119881/ssh-exchange-identification-connection-closed-by-remote-host ads with us Ask Ubuntu Questions Tags Users Badges Unanswered Ask Question _ Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise connection closed to the top OpenSSH intermittent error ( ssh_exchange_identification: Connection closed by remote host ) on a public IP up vote 1 down vote favorite I faced a very strange issue on one of my public SSH server. It was failing intermittently with the error below: ssh_exchange_identification: Connection closed by remote host We all know that it's a generic one. Let me show you both client and server side logs., On connection closed by SSH Client - 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 139.162.11.185 [139.162.11.185] port 22. debug1: Connection established. debug1: identity file /home/vivek/.ssh/id_rsa type -1 debug1: identity file /home/vivek/.ssh/id_rsa-cert type -1 debug1: identity file /home/vivek/.ssh/id_dsa type -1 debug1: identity file /home/vivek/.ssh/id_dsa-cert type -1 debug1: identity file /home/vivek/.ssh/id_ecdsa type -1 debug1: identity file /home/vivek/.ssh/id_ecdsa-cert type -1 debug1: identity file /home/vivek/.ssh/id_ed25519 type -1 debug1: identity file /home/vivek/.ssh/id_ed25519-cert type -1 debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.4 ssh_exchange_identification: Connection closed by remote host On SSH Server Feb 6 14:49:10 linsing2 sshd[19916]: Connection closed by 124.40.245.75 Feb 6 14:49:16 linsing2 sshd[19935]: Connection closed by 124.40.245.75 Feb 6 14:49:20 linsing2 sshd[19937]: Connection closed by 124.40.245.75 The whole issue is intermittent. Is this due to any DDOS attack on SSH server which has already made so many connections? Or is this is due to Max_Connection limit on SSH server ? (But Max_Connects works on per network basis we tried from 3 different networks and got the same error) Or is there a possible chance of number of currently opened files or connections on the SSH server? (Note - We don't ha
Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Server Fault Questions Tags Users Badges Unanswered Ask Question _ Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top ssh_exchange_identification: Connection closed by remote host up vote 3 down vote favorite 1 First: $ ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa $ cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys Connecting to SSH servers gives this message: $ ssh -vvv localhost OpenSSH_5.3p1, OpenSSL 0.9.8m 25 Feb 2010 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for * debug2: ssh_connect: needpriv 0 debug1: Connecting to localhost [127.0.0.1] port 22. debug1: Connection established. debug1: identity file /home/charlie/.ssh/identity type -1 debug1: identity file /home/charlie/.ssh/id_rsa type -1 debug3: Not a RSA1 key file /home/charlie/.ssh/id_dsa. debug2: key_type_from_name: unknown key type '-----BEGIN' debug3: key_read: missing keytype debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug2: key_type_from_name: unknown key type '-----END' debug3: key_read: missing keytype debug1: identity file /home/charlie/.ssh/id_dsa type 2 ssh_exchange_identification: Connection closed by remote host My /etc/hosts.allow is as following: sshd: ALLOW /etc/hosts.deny is as following: ALL: ALL: DENY I have changed my /etc/ssh/sshd_conf as following: Li