1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 <2010> 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 | Index | 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 <2010> 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 |
<== Date ==> | <== Thread ==> |
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Subject: | Firewall (iptables) issues? |
From: | Eric Norum <[email protected]> |
To: | EPICS Techtalk <[email protected]> |
Date: | Thu, 4 Nov 2010 08:22:14 -0700 |
Apologies if this is a FAQ. I'm new to the intricacies of Linux firewalls. I'm trying to get a linux system Linux xildev2 2.6.18-194.11.3.el5.lbl1 #1 SMP Thu Sep 16 14:50:58 PDT 2010 x86_64 x86_64 x86_64 GNU/Linux to work as a channel access client. If I use EPICS_CA_ADDR_LIST to explicitly provide the address of my IOC things work fine. If I leave EPICS_CA_ADDR_LIST undefined my client applications see no PVs. I poked holes in the firewall for the channel-access ports: iptables -L . . ACCEPT udp -- anywhere anywhere udp dpt:ca-1 ACCEPT udp -- anywhere anywhere udp dpt:ca-2 ACCEPT tcp -- anywhere anywhere tcp dpt:ca-1 ACCEPT tcp -- anywhere anywhere tcp dpt:ca-2 . . but that didn't seem to make any difference. I restarted caRepeater after making the firewall changes. Still no PVs. Suggestions? -- Eric Norum [email protected]