Doubt this is helpful, but I looked at your Cisco-Device-Log file where it complains about various term types. What happens if you set the term type to vt100 in the guacamole connection settings?
https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k-r7-0/system-security/configuration/guide/b-system-security-cg-asr9000-70x/b-system-security-cg-asr9000-70x_chapter_01001.html Use of a terminal type other than vt100 is unsupported, and the software > generates a warning message in this case. On Fri, Apr 1, 2022 at 1:34 AM Amartya Thorat < amartya.tho...@logicmonitor.com> wrote: > Hi All > I am facing same issue for CISCO-IOS XR DEVICE > Can we get more help on this > > Attaching device ssh logs > > > Thanks ! > Amartya Thorat > > > On 2021/04/06 13:08:32 Yaroslav Nikonorov wrote: > > Hi There, > > When connect to Cisco-IOS-XRv-9000 by ssh guacd failed with "Unable to > > allocate PTY" error. > > As it is critical for us, I played around and found that guacd failed on > PTY > > request "libssh2_channel_request_pty()". > > After some debugging on guacd and libssh2 I found that request is sent > > successfully, but it failed on receiving specific packet type. > > I created the below patch for guacd, added warning instead of > > "guac_client_abort()" and it worked. > > > > Currently we are using custom builds, but it would be great to add the > fix > > to the code base to avoid such cases. > > Can you help me with the solution? > > Thanks. > > > > > > From d5c0e7aa4c38db04d0bf7adb817ca9f392c7f619 Mon Sep 17 00:00:00 2001 > > From: Yaroslav <ya...@quali.com> > > Date: Fri, 2 Apr 2021 07:05:20 +0000 > > Subject: [PATCH] Continue execution if PTY request failed > > > > --- > > src/protocols/ssh/ssh.c | 3 +-- > > 1 file changed, 1 insertion(+), 2 deletions(-) > > > > diff --git a/src/protocols/ssh/ssh.c b/src/protocols/ssh/ssh.c > > index 81fb0855..e7f9eeb0 100644 > > --- a/src/protocols/ssh/ssh.c > > +++ b/src/protocols/ssh/ssh.c > > @@ -368,8 +368,7 @@ void* ssh_client_thread(void* data) { > > settings->terminal_type, strlen(settings->terminal_type), > > ssh_ttymodes, ttymodeBytes, ssh_client->term->term_width, > > ssh_client->term->term_height, 0, 0)) { > > - guac_client_abort(client, GUAC_PROTOCOL_STATUS_UPSTREAM_ERROR, > > "Unable to allocate PTY."); > > - return NULL; > > + guac_client_log(client, GUAC_LOG_WARNING, "Unable to allocate > > PTY."); > > } > > > > /* Forward specified locale */ > > -- > > 2.20.1 > > > > > > > > -- > > Sent from: > http://apache-guacamole-general-user-mailing-list.2363388.n4.nabble.com/ > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: user-unsubscr...@guacamole.apache.org > > For additional commands, e-mail: user-h...@guacamole.apache.org > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: user-unsubscr...@guacamole.apache.org > For additional commands, e-mail: user-h...@guacamole.apache.org -- Jonathan Hankins Homewood City Schools W: 205-877-4548 -- This e-mail is intended only for the recipient and may contain confidential or proprietary information. If you are not the intended recipient, the review, distribution, duplication or retention of this message and its attachments are prohibited. Please notify the sender of this error immediately by reply e-mail, and permanently delete this message and its attachments in any form in which they may have been preserved.
