Hi, I encountered similar issues yesterday on 4.9 on Xen 6.5: although the DNS servers could be pinged, name resolution was not possible. Same for the agent.
I stopped iptables on my xen hosts and it all started working. I did a quick and dirty “yum remove iptables“ on my xen hosts. Now everything is stable. Von meinem Huawei-Mobiltelefon gesendet -------- Originalnachricht -------- Betreff: RE: Firewall on xenserver Von: Ghaith Bannoura An: [email protected] Cc: The purpose for it as below : 1-the system VMs agent showing not running , after I stopped the firewall in xenservers its working normally 2-the instances accessible only when I stop the iptables from xenservers 2- I installed open manage in the servers (Manage hardware for Dell servers) that need changes from iptables ) I have advanced zone with ACS 4.8 and xenserver 6.5 Best Regards, EtQ, Inc. Ghaith Bannoura Senior System Administrator MCT, MCSE (Messaging, Server Infrastructure) MCSA (Windows Server 2008, 2012), MCP Phone: +9626-537-0923 Ext. 376 P [email protected] G http://www.etq.com -----Original Message----- From: Dag Sonstebo [mailto:[email protected]] Sent: Monday, November 21, 2016 11:05 AM To: [email protected] Subject: Re: Firewall on xenserver Hi Ghait, Can you explain your rationale - i.e. what is the purpose of you changing XenServer firewall rules? Citrix seems to have a how-to article on https://support.citrix.com/article/CTX123930 . Regards, Dag Sonstebo Cloud Architect ShapeBlue On 21/11/2016, 08:14, "Ghaith Bannoura" <[email protected]> wrote: Hello All, I have ACS 4.8 with xenserver 6.5 I modified the iptables in xenserver and its returned back as default , also I stopped the iptables many times and its returned running again . Can you please advice where I can modify iptables permanently in xenserver . Best Regards, EtQ, Inc. Ghaith Bannoura Senior System Administrator MCT, MCSE (Messaging, Server Infrastructure) MCSA (Windows Server 2008, 2012), MCP * Phone: +9626-537-0923 Ext. 376 * [email protected] <mailto:[email protected]> * http://www.etq.com<http://www.etq.com/> [email protected] www.shapeblue.com 53 Chandos Place, Covent Garden, London WC2N 4HSUK @shapeblue Jeroen Keerl Keerl IT Services GmbH Birkenstraße 1b . 21521 Aumühle +49 177 6320 317 www.keerl-it.com [email protected] Geschäftsführer. Jacobus J. Keerl Registergericht Lubeck. HRB-Nr. 14511 Unsere Allgemeine Geschäftsbedingungen finden Sie hier.
