From nobody Tue Mar 21 23:29:26 2023 X-Original-To: freebsd-arm@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4Ph79R6zn9z40yHb for ; Tue, 21 Mar 2023 23:29:31 +0000 (UTC) (envelope-from fbsd@www.zefox.net) Received: from www.zefox.net (www.zefox.net [50.1.20.27]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "www.zefox.com", Issuer "www.zefox.com" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Ph79Q3qbfz4LX4 for ; Tue, 21 Mar 2023 23:29:30 +0000 (UTC) (envelope-from fbsd@www.zefox.net) Authentication-Results: mx1.freebsd.org; dkim=none; spf=none (mx1.freebsd.org: domain of fbsd@www.zefox.net has no SPF policy when checking 50.1.20.27) smtp.mailfrom=fbsd@www.zefox.net; dmarc=none Received: from www.zefox.net (localhost [127.0.0.1]) by www.zefox.net (8.17.1/8.15.2) with ESMTPS id 32LNTRTB037595 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Tue, 21 Mar 2023 16:29:27 -0700 (PDT) (envelope-from fbsd@www.zefox.net) Received: (from fbsd@localhost) by www.zefox.net (8.17.1/8.15.2/Submit) id 32LNTQB3037594; Tue, 21 Mar 2023 16:29:26 -0700 (PDT) (envelope-from fbsd) Date: Tue, 21 Mar 2023 16:29:26 -0700 From: bob prohaska To: freebsd-arm@freebsd.org Cc: fbsd@www.zefox.net Subject: Persuading ssh -X to work from a RasPiOS system Message-ID: <20230321232926.GA37569@www.zefox.net> List-Id: Porting FreeBSD to ARM processors List-Archive: https://lists.freebsd.org/archives/freebsd-arm List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-arm@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Spamd-Result: default: False [-1.10 / 15.00]; AUTH_NA(1.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-0.998]; WWW_DOT_DOMAIN(0.50)[]; MID_RHS_WWW(0.50)[]; MIME_GOOD(-0.10)[text/plain]; R_DKIM_NA(0.00)[]; MLMMJ_DEST(0.00)[freebsd-arm@freebsd.org]; MIME_TRACE(0.00)[0:+]; R_SPF_NA(0.00)[no SPF record]; FROM_EQ_ENVFROM(0.00)[]; ASN(0.00)[asn:7065, ipnet:50.1.16.0/20, country:US]; RCPT_COUNT_TWO(0.00)[2]; RCVD_COUNT_THREE(0.00)[3]; RCVD_TLS_LAST(0.00)[]; ARC_NA(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; FROM_HAS_DN(0.00)[]; DMARC_NA(0.00)[zefox.net]; TO_DN_NONE(0.00)[]; MID_RHS_MATCH_FROM(0.00)[] X-Rspamd-Queue-Id: 4Ph79Q3qbfz4LX4 X-Spamd-Bar: - X-ThisMailContainsUnwantedMimeParts: N After a recent round of upgrades to both FreeBSD-current and RasPiOS64 it developed that running ssh -X [freebsd hostname] gets me logged in, but issuing xterm -sb reports xterm: Xt error: Can't open display: xterm: DISPLAY is not set After looking at the man page I repeated the experiment using ssh -Y to open the connection, with the same result. The X server side has X11Forwarding yes in /etc/ssh/sshd_config, I haven't tampered with anything yet on the FreeBSD side. The display server is on a local subnet connecting via router to a public address, but that didn't cause any problems before. All addressing is IPV4. Any hints what might be wrong? I haven't tried this experiment in a while, so it's unclear which side is causing the trouble. Thanks for reading, bob prohaska