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https://issues.apache.org/jira/browse/GUACAMOLE-1920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17820527#comment-17820527
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Nick Couchman commented on GUACAMOLE-1920:
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[~jmuehlner]: This one is good to close, right?
> 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
> Assignee: James Muehlner
> Priority: Minor
> Fix For: 1.5.5
>
>
> || 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?)"
> {code:none}
> 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?)
> {code}
> 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]"
> {code:none}
> 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.
> {code}
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