Hello, I wanted to completely disable IPv6 to get ganesha to use IPv4 sockets only. Once we did set the sysctl configs to disable IPv6 *and* did rebuild the initramfs.*.img file to include the new settings IPv6 was completely gone and ganesha did open an IPv4 socket only. We missed to rebuild the initramfs.*.img file in the first trial. Rpcbind/ganesha failed to start without the initramfs rebuild.
Cheers, Heiner Some related documents from netapp https://access.redhat.com/solutions/8709#rhel7disable https://access.redhat.com/solutions/2798411 https://access.redhat.com/solutions/2963091 From: <gpfsug-discuss-boun...@spectrumscale.org> on behalf of "Billich Heinrich Rainer (ID SD)" <heinrich.bill...@id.ethz.ch> Reply to: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org> Date: Monday, 16 September 2019 at 17:51 To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org> Subject: Re: [gpfsug-discuss] Ganesha all IPv6 sockets - ist this to be expected? Hello Olaf, Thank you, so we’ll try to get rid of IPv6. Actually we do have this settings active but I may have to add them to the initrd file, too. (See https://access.redhat.com/solutions/8709#rhel7disable) to prevent ganesha from opening an IPv6 socket. It’s probably no big issue if ganesha uses IPv4overIPv6 for all connections, but to keep things simple I would like to avoid it. @Edward We got /etc/tuned/scale/tuned.conf with GSS/xCAT. I’m not sure whether it’s part of any rpm. Cheers, Heiner From: <gpfsug-discuss-boun...@spectrumscale.org> on behalf of Olaf Weiser <olaf.wei...@de.ibm.com> Reply to: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org> Date: Monday, 16 September 2019 at 09:12 To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org> Subject: Re: [gpfsug-discuss] Ganesha all IPv6 sockets - ist this to be expected? Hallo Heiner, usually, Spectrum Scale comes with a tuned profile (named scale) .. [root@nsd01 ~]# tuned-adm active Current active profile: scale in there [root@nsd01 ~]# cat /etc/tuned/scale/tuned.conf | tail -3 # Disable IPv6 net.ipv6.conf.all.disable_ipv6=1 net.ipv6.conf.default.disable_ipv6=1 [root@nsd01 ~]# depending on .... what you need to achieve .. one might be forced to changed that.. e.g. for RoCE .. you need IPv6 to be active ... but for all other scenarios with SpectrumScale (at least what I'm aware of right now) ... IPv6 can be disabled... From: "Billich Heinrich Rainer (ID SD)" <heinrich.bill...@id.ethz.ch> To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org> Date: 09/13/2019 05:02 PM Subject: [EXTERNAL] [gpfsug-discuss] Ganesha all IPv6 sockets - ist this to be expected? Sent by: gpfsug-discuss-boun...@spectrumscale.org ________________________________ Hello, I just noted that our ganesha daemons offer IPv6 sockets only, IPv4 traffic gets encapsulated. But all traffic to samba is IPv4, smbd offers both IPv4 and IPv6 sockets. I just wonder whether this is to be expected? Protocols support IPv4 only, so why running on IPv6 sockets only for ganesha? Did we configure something wrong and should completely disable IPv6 on the kernel level Any comment is welcome Cheers, Heiner -- ======================= Heinrich Billich ETH Zürich Informatikdienste Tel.: +41 44 632 72 56 heinrich.bill...@id.ethz.ch ======================== I did check with ss -l -t -4 ss -l -t -6 add -p to get the process name, too. do you get the same results on your ces nodes? [root@nas22ces04-i config_samples]# ss -l -t -4 State Recv-Q Send-Q Local Address:Port Peer Address:Port LISTEN 0 8192 *:gpfs *:* LISTEN 0 50 *:netbios-ssn *:* LISTEN 0 128 *:5355 *:* LISTEN 0 128 *:sunrpc *:* LISTEN 0 128 *:ssh *:* LISTEN 0 100 127.0.0.1:smtp *:* LISTEN 0 10 10.250.135.24:4379 *:* LISTEN 0 128 *:32765 *:* LISTEN 0 50 *:microsoft-ds *:* [root@nas22ces04-i config_samples]# ss -l -t -6 State Recv-Q Send-Q Local Address:Port Peer Address:Port LISTEN 0 128 :::32767 :::* LISTEN 0 128 :::32768 :::* LISTEN 0 128 :::32769 :::* LISTEN 0 128 :::2049 :::* LISTEN 0 128 :::5355 :::* LISTEN 0 50 :::netbios-ssn :::* LISTEN 0 128 :::sunrpc :::* LISTEN 0 128 :::ssh :::* LISTEN 0 128 :::32765 :::* LISTEN 0 50 :::microsoft-ds :::* _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
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