Bug 133884
| Summary: | SSH Hangs after SSH2_MSG_KEXINIT sent | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Gerald Davies <gerald.davies> |
| Component: | openssh | Assignee: | Tomas Mraz <tmraz> |
| Status: | CLOSED NOTABUG | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 2 | CC: | hingwah |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i686 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2005-04-05 19:27:28 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Note - I've discovered much to my surprise that it works on kernel 2.6.6, but unfortunately nothing after that. Same situation here. I access website www.cuhk.edu.hk with very slow speed and telnet to its one ssh server (cannot mention the exact hostname here) in the university got the same thing. I cannot telnet to the server either. I'm using debian with kernel 2.6.8 .With kernel 2.6.6 everything work fine. I figure out how to solve the problem Please try : echo 0 > /proc/sys/net/ipv4/tcp_default_win_scale What about current FC2 update kernel? See http://lwn.net/Articles/92727/ Also on kernel 2.6.9 and higher the connection shouldn't hang it will be only slower than possible maximum. The problem lies in the buggy routers on the way to the server. |
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7) Gecko/20040808 Firefox/0.9.3 Description of problem: I suspect it might not be this component, but its certainly something to do with it. Basically, SSH hangs after initiating a connection - it never prompts for a password or anything. I've removed things like the firewall, etc, and still no change. Every other client connects fine to the SSH server i'm using except the one in fedora. Also, putty too fails to connect to it on FC2. However, the WindowsXP SSH client on the other partition seems to connect fine so i'm thinking its definitely something with my FC2 installation. the debug from SSH is: OpenSSH_3.6.1p2, SSH protocols 1.5/2.0, OpenSSL 0x0090701f debug1: Reading configuration data /etc/ssh/ssh_config debug1: Rhosts Authentication disabled, originating port will not be trusted. debug2: ssh_connect: needpriv 0 debug1: Connecting to x.x.x.x [x.x.x.x] port 22. debug1: Connection established. debug1: identity file /home/user/.ssh/identity type -1 debug1: identity file /home/user/.ssh/id_rsa type -1 debug3: Not a RSA1 key file /home/user/.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/user/.ssh/id_dsa type 2 debug1: Remote protocol version 1.99, remote software version OpenSSH_2.9.9p2 debug1: match: OpenSSH_2.9.9p2 pat OpenSSH_2.*,OpenSSH_3.0*,OpenSSH_3.1* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_3.6.1p2 debug1: SSH2_MSG_KEXINIT sent Version-Release number of selected component (if applicable): openssh-clients-3.6.1p2-34 How reproducible: Always Steps to Reproduce: 1. install the SSH software as usual and try and connect to a SSH server with the above details 2. 3. Actual Results: as above. nothing Expected Results: a connection/password prompt Additional info: