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https://issues.apache.org/jira/browse/GUACAMOLE-1920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17814632#comment-17814632
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CaoShulin commented on GUACAMOLE-1920:
--------------------------------------
We did a comparison test, and no problem was found when EulerOS 2.10.12
installed guacd1.5.4 with linux. When installing guacd 1.5.4 using linux
version EulerOS 2.9.12, the problem is easy to repeat. Ask whether guacd and
EulerOS 2.9.12 have compatibility problems？
> When the cumulative number of user connections reaches a certain amount,
> guacd will report an error. "RDP server closed/refused connection: Security
> negotiation failed (wrong security type?)”
> -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: GUACAMOLE-1920
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-1920
> Project: Guacamole
> Issue Type: Bug
> Components: guacd
> Affects Versions: 1.5.4
> Reporter: CaoShulin
> Priority: Minor
>
> Local host: Windows host
> Remote host: Windows host
> guacamole version: 1.5.4
> Protocol: rdp
> When the cumulative number of user connections reaches a certain amount,
> guacd will report an error. "RDP server closed/refused connection: Security
> negotiation failed (wrong security type?)”
> Feb 4 16:51:48 host-172-31-0-14 guacd[2038]: Creating new client for
> protocol "rdp"
> Feb 4 16:51:48 host-172-31-0-14 guacd[2038]: Connection ID is
> "$514ed1c3-2756-4d9f-8153-6388354873cc"
> Feb 4 16:51:48 host-172-31-0-14 guacd[991760]: Security mode: RDP
> Feb 4 16:51:48 host-172-31-0-14 guacd[991760]: Resize method: reconnect
> Feb 4 16:51:48 host-172-31-0-14 guacd[991760]: No clipboard line-ending
> normalization specified. Defaulting to preserving the format of all line
> endings.
> Feb 4 16:51:48 host-172-31-0-14 guacd[991760]: User
> "@5259dffd-eb02-42df-9b82-18de1b87457f" joined connection
> "$8ea080a2-1da5-4221-a828-823160906743" (1 users now present)
> Feb 4 16:51:48 host-172-31-0-14 guacd[991760]: Loading keymap "base"
> Feb 4 16:51:48 host-172-31-0-14 guacd[991760]: Loading keymap "en-us-qwerty"
> Feb 4 16:51:48 host-172-31-0-14 guacd[991764]: Security mode: RDP
> Feb 4 16:51:48 host-172-31-0-14 guacd[991764]: Resize method: reconnect
> Feb 4 16:51:48 host-172-31-0-14 guacd[991764]: No clipboard line-ending
> normalization specified. Defaulting to preserving the format of all line
> endings.
> Feb 4 16:51:48 host-172-31-0-14 guacd[991764]: User
> "@3814f8a9-f362-4b1e-9eb1-30fe6ed7c62b" joined connection
> "$514ed1c3-2756-4d9f-8153-6388354873cc" (1 users now present)
> Feb 4 16:51:48 host-172-31-0-14 guacd[991764]: Loading keymap "base"
> Feb 4 16:51:48 host-172-31-0-14 guacd[991764]: Loading keymap "en-us-qwerty"
> Feb 4 16:51:48 host-172-31-0-14 guacd[991764]: RDP server closed/refused
> connection: Security negotiation failed (wrong security type?)
>
> When you try to access again, an error occurs. "segfault at 20 ip
> 00007ff86708f848 sp 00007ff83affc9c0 error 4 in
> libdl-2.28.so[7ff86708f000+1000]"
> Feb 4 11:16:51 host-172-31-0-14 guacd[2507120]: Creating new client for
> protocol "rdp"
> Feb 4 11:16:51 host-172-31-0-14 guacd[2507120]: Connection ID is
> "$35290a32-8188-4bbb-9d7d-5e181be83e25"
> Feb 4 11:16:51 host-172-31-0-14 audit[3804338]: ANOM_ABEND auid=0 uid=0
> gid=0 ses=8 pid=3804338 comm="guacd" exe="/usr/local/sbin/guacd" sig=11 res=1
> Feb 4 11:16:51 host-172-31-0-14 kernel: [143626.086546] guacd[3804338]:
> segfault at 85 ip 00007f5a1d96a77d sp 00007f5951f929c0 error 4 in
> libdl-2.28.so[7f5a1d96a000+1000]
> Feb 4 11:16:51 host-172-31-0-14 kernel: [143626.086550] Code: c3 0f 84 96 00
> 00 00 8b 53 04 48 8b 43 18 85 d2 0f 84 9d 00 00 00 48 85 c0 74 1f 48 8d 3d a2
> 08 00 00 b9 0e 00 00 00 48 89 c6 <f3> a6 0f 85 7b 01 00 00 48 c7 43 18 00 00
> 00 00 48 8b 04 24 e9 63
> Feb 4 11:16:51 host-172-31-0-14 guacd[2507120]: Connection
> "$35290a32-8188-4bbb-9d7d-5e181be83e25" removed.
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