Unable to access terminal from CDSW session

Marek — Tue, 21 Apr 2026 11:27:49 GMT

Hi,

Would appreciate any advice, how to solve a problem with terminal access from a CDSW session. Let me highlight that I can launch a session, however within a session I am unable to access the terminal – please see the attached screenshot with HTTP ERROR 401.

The networking requirements are met, in particular:

IPv6 is enabled
CDSW hosts are within the same subnet as the CDH cluster
DNS is configured with the relevant A record for domain name, CNAME record for wildcard domain, and a reverse PTR domain record (please see the enclosed response to ping command, where the DNS resolves the terminal's FQDN to CDSW master node's IP)
No iptables rules were enabled
SElinux is disabled

[cloud-user@cdh-control-01 ~]$ ping -c1 tty-jidv65sd8630btx4.cdsw.<intranetdomain> PING cdsw.<intranetdomain> (10.133.210.200) 56(84) bytes of data. 64 bytes from cdsw.<intranetdomain> (10.133.210.200): icmp_seq=1 ttl=60 time=0.884 ms --- cdsw.<intranetdomain> ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 0.884/0.884/0.884/0.000 ms

Re: Unable to access terminal from CDSW session

aakulov — Mon, 29 Jun 2020 16:29:08 GMT

This problem is typically solved by either (a) clearing cookies and restarting your browser; and/or (b) logging out and back into CDSW. Let me know if that works for you.

Re: Unable to access terminal from CDSW session

Marek — Mon, 29 Jun 2020 19:58:08 GMT

Clearing cookies helped.

Thank you.

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Unable to access terminal from CDSW session

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