did u see any errors from makedns command?  is named running?

can u show output of  tabdump site ?

also,  running "xcatprobe xcatmn -i eno1"    (eno1 is the interface for
MN's ip address, right? )



Thanks,
Casandra
...................................................................
Casandra Hong Qiu
Phone: (845) 433-9291, t/l 293-9291
Office: Building 8, 3-B-04
cxh...@us.ibm.com





From:   Sajesh Singh <ssi...@amnh.org>
To:     xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
Date:   07/31/2020 02:37 PM
Subject:        [EXTERNAL] Re: [xcat-user] Erroneous DNS entry creation



No change after changing to IP address of MN and reran makedns.



-SS-

From: Casandra H Qiu <cxh...@us.ibm.com>
Sent: Friday, July 31, 2020 2:31 PM
To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
Subject: Re: [xcat-user] Erroneous DNS entry creation

EXTERNAL SENDER



you should use MN's ip address.


...................................................................
Casandra Hong Qiu
Phone: (845) 433-9291, t/l 293-9291
Office: Building 8, 3-B-04
cxh...@us.ibm.com



Inactive hide details for Sajesh Singh ---07/31/2020 02:13:22 PM---Tried
removing the 2 external DNS servers and reran makedns,Sajesh Singh
---07/31/2020 02:13:22 PM---Tried removing the 2 external DNS servers and
reran makedns, but the 169 entry still shows up. I use

From: Sajesh Singh <ssi...@amnh.org>
To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
Date: 07/31/2020 02:13 PM
Subject: [EXTERNAL] Re: [xcat-user] Erroneous DNS entry creation




Tried removing the 2 external DNS servers and reran makedns, but the 169
entry still shows up. I use 127.0.0.1 as the IP address for the local
nameserver.

-SS-


From: Casandra H Qiu <cxh...@us.ibm.com>
Sent: Friday, July 31, 2020 1:46 PM
To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
Subject: Re: [xcat-user] Erroneous DNS entry creation

EXTERNAL SENDER


can u able to get rid of 2 external namservers? if not, put your local name
server before external nameserver. I assume you local name nameserver is
xCAT MN's ip address



...................................................................
Casandra Hong Qiu
Phone: (845) 433-9291, t/l 293-9291
Office: Building 8, 3-B-04
cxh...@us.ibm.com



Inactive hide details for Sajesh Singh ---07/31/2020 01:30:19 PM---There is
no 169 entry in my /etc/resolv.conf or my /etc/hostSajesh Singh
---07/31/2020 01:30:19 PM---There is no 169 entry in my /etc/resolv.conf or
my /etc/hosts. The only entries in /etc/resolv.conf

From: Sajesh Singh <ssi...@amnh.org>
To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
Date: 07/31/2020 01:30 PM
Subject: [EXTERNAL] Re: [xcat-user] Erroneous DNS entry creation





There is no 169 entry in my /etc/resolv.conf or my /etc/hosts. The only
entries in /etc/resolv.conf are for my local name server and my 2 external
nameservers.

Thank you,

SS

From: Casandra H Qiu <cxh...@us.ibm.com>
Sent: Friday, July 31, 2020 1:11 PM
To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
Subject: Re: [xcat-user] Erroneous DNS entry creation

EXTERNAL SENDER


check your /etc/resolv.conf, you can get rid of 169 ip address and use
head's ip address, then run makedns again.



Thanks,
Casandra Qiu

...................................................................
Casandra Hong Qiu
Phone: (845) 433-9291, t/l 293-9291
Office: Building 8, 3-B-04
cxh...@us.ibm.com



Inactive hide details for Sajesh Singh ---07/31/2020 12:39:43
PM---Cassandra,   It's not for one of the compute nodes. The entrSajesh
Singh ---07/31/2020 12:39:43 PM---Cassandra, It's not for one of the
compute nodes. The entry is related to the head node.

From: Sajesh Singh <ssi...@amnh.org>
To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
Date: 07/31/2020 12:39 PM
Subject: [EXTERNAL] Re: [xcat-user] Erroneous DNS entry creation






Cassandra,
It’s not for one of the compute nodes. The entry is related to the head
node.


Output of grep from /etc/hosts for node head

192.168.243.254 head-bmc
192.168.247.254 head
10.224.15.254 head-ib
=========================================================
Table dump of networks
#netname,net,mask,mgtifname,gateway,dhcpserver,tftpserver,nameservers,ntpservers,logservers,dynamicrange,staticrange,staticrangeincrement,nodehostname,ddnsdomain,vlanid,domain,mtu,comments,disable

"infiniband","10.XXX.XXX.XXX","255.255.255.0","ib0","<xcatmaster>",,"<xcatmaster>",,,,,,,,,,,"65520",,

"public","216.XXX.XXX.XXX","255.255.255.192","eno3","216.XXX.XXX.XXX",,"<xcatmaster>",,,,,,,,,,,"1500",,

"boot","192.XXX.XXX.XXX","255.255.255.0","eno1","192.XXX.XXX.XXX",,"192.XXX.XXX.XXX",,,,,,,,,,,"1500",,

"fde1:53ba:e9a0:de11::/64","fde1:53ba:e9a0:de11::/64","/64","idrac",,,,,,,,,,,,,,,,

"ipmi","192.XXX.XXX.XXX","255.XXX.XXX.XXX","eno1:1","192.XXX.XXX.XXX",,,,,,,,,,,,,"1500",,


==========================================================

DNS lookup results

nslookup head
Server: 127.0.0.1
Address: 127.0.0.1#53

Name: head.cluster.fdqn
Address: 169.254.0.2
Name: head.cluster.fdqn
Address: 192.168.247.254


Thank you,

SS

From: Casandra H Qiu <cxh...@us.ibm.com>
Sent: Friday, July 31, 2020 11:27 AM
To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
Subject: Re: [xcat-user] Erroneous DNS entry creation

EXTERNAL SENDER


which entry? can you show us?
lsdef compute_node
tabdump networks
grep compute_node /etc/hosts


Thanks,
Casandra Qiu
...................................................................
Casandra Hong Qiu
Phone: (845) 433-9291, t/l 293-9291
Office: Building 8, 3-B-04
cxh...@us.ibm.com



Inactive hide details for Sajesh Singh ---07/30/2020 04:32:53 PM---CentOS 8
xCat 2.16Sajesh Singh ---07/30/2020 04:32:53 PM---CentOS 8 xCat 2.16

From: Sajesh Singh <ssi...@amnh.org>
To: "xcat-user@lists.sourceforge.net" <xcat-user@lists.sourceforge.net>
Date: 07/30/2020 04:32 PM
Subject: [EXTERNAL] [xcat-user] Erroneous DNS entry creation







CentOS 8
xCat 2.16

When running makedns there is an entry created for an entry that is not in
my /etc/hosts. The effect of this is that the head node has 2 entries in
the local DNS cache. One for its private IP address (in /etc/hosts) and one
for the other address which is not reachable by the compute nodes. The
other IP address is just used by the HW management utilities for internal
communications and is a 169.x.x.x address. How can I tell xCat/makedns to
not create this entry?

-SS-_______________________________________________
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