Removed the entry and re-ran ‘makedns -n’ but entry still appears in an nslookup and dig search. I also checked the named.conf and don’t see any reference to that zone, but it is in the db file for the forward lookup zone in /var/named.
-SS- From: Casandra H Qiu <cxh...@us.ibm.com> Sent: Wednesday, August 5, 2020 3:27 PM To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net> Subject: Re: [xcat-user] Erroneous DNS entry creation EXTERNAL SENDER I don't think it will cause to provision the compute node. anyway, you may remove `169.254` ip address from network table, then run "makedns -n ", that should get rid of "169.254" address from named.conf ................................................................... Casandra Hong Qiu Phone: (845) 433-9291, t/l 293-9291 Office: Building 8, 3-B-04 cxh...@us.ibm.com<mailto:cxh...@us.ibm.com> [Inactive hide details for Sajesh Singh ---08/03/2020 03:56:19 PM---But if I do a lookup for the hostname of the head node I wil]Sajesh Singh ---08/03/2020 03:56:19 PM---But if I do a lookup for the hostname of the head node I will get 2 IP addresses returned of which t From: Sajesh Singh <ssi...@amnh.org<mailto:ssi...@amnh.org>> To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto:xcat-user@lists.sourceforge.net>> Date: 08/03/2020 03:56 PM Subject: [EXTERNAL] Re: [xcat-user] Erroneous DNS entry creation ________________________________ But if I do a lookup for the hostname of the head node I will get 2 IP addresses returned of which the 169.254 address is the first on the list at times. -SS- From: Casandra H Qiu <cxh...@us.ibm.com<mailto:cxh...@us.ibm.com>> Sent: Monday, August 3, 2020 3:17 PM To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto:xcat-user@lists.sourceforge.net>> Subject: Re: [xcat-user] Erroneous DNS entry creation EXTERNAL SENDER the nameserver in the /etc/resolv.conf on the compute node will be "192.168.247.254", it based on the xCAT master ip address. Thanks, Casandra Qiu ................................................................... Casandra Hong Qiu Phone: (845) 433-9291, t/l 293-9291 Office: Building 8, 3-B-04 cxh...@us.ibm.com<mailto:cxh...@us.ibm.com> [Inactive hide details for Sajesh Singh ---08/03/2020 02:50:16 PM---That is correct, the entry is still there after the makedns]Sajesh Singh ---08/03/2020 02:50:16 PM---That is correct, the entry is still there after the makedns -n command. The problem is going to be t From: Sajesh Singh <ssi...@amnh.org<mailto:ssi...@amnh.org>> To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto:xcat-user@lists.sourceforge.net>> Date: 08/03/2020 02:50 PM Subject: [EXTERNAL] Re: [xcat-user] Erroneous DNS entry creation ________________________________ That is correct, the entry is still there after the makedns -n command. The problem is going to be that any service especially on the compute nodes that do a DNS lookup for the name may get the incorrect address to use and fail. -SS- From: Casandra H Qiu <cxh...@us.ibm.com<mailto:cxh...@us.ibm.com>> Sent: Monday, August 3, 2020 2:36 PM To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto:xcat-user@lists.sourceforge.net>> Subject: Re: [xcat-user] Erroneous DNS entry creation EXTERNAL SENDER After ran `makedns -n` , still has this entry, right? nslookup mendel-head Server: 192.168.247.254 Address: 192.168.247.254#53 Name: mendel-head.mendel.sdmz.amnh.org Address: 192.168.247.254 Name: mendel-head.mendel.sdmz.amnh.org Address: 169.254.0.2 <<<<<<<------- Any errors you are seeing caused by this entry? I think for xCAT, it will use eno1 (192.168.247.254) as dhcpd/tftpd/http server interfaces. Thanks, Casandra Qiu ................................................................... Casandra Hong Qiu Phone: (845) 433-9291, t/l 293-9291 Office: Building 8, 3-B-04 cxh...@us.ibm.com<mailto:cxh...@us.ibm.com> [Inactive hide details for Sajesh Singh ---08/03/2020 01:28:32 PM---We do not use IPv6. Made the change as recommended with the]Sajesh Singh ---08/03/2020 01:28:32 PM---We do not use IPv6. Made the change as recommended with the following line "idrac","169.254.0.0","25 From: Sajesh Singh <ssi...@amnh.org<mailto:ssi...@amnh.org>> To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto:xcat-user@lists.sourceforge.net>> Date: 08/03/2020 01:28 PM Subject: [EXTERNAL] Re: [xcat-user] Erroneous DNS entry creation ________________________________ We do not use IPv6. Made the change as recommended with the following line "idrac","169.254.0.0","255.255.0.0","idrac",,,,,,,,,,,,,,,, Still no change. Getting the same results from the nslookup. -Sajesh- -- _____________________________________________________ Sajesh Singh Manager, Systems and Scientific Computing American Museum of Natural History 200 Central Park West New York, NY 10024 (O) (212) 313-7263 (C) (917) 763-9038 (E) ssi...@amnh.org<mailto:ssi...@amnh.org> From: Casandra H Qiu <cxh...@us.ibm.com<mailto:cxh...@us.ibm.com>> Sent: Monday, August 3, 2020 12:07 PM To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto:xcat-user@lists.sourceforge.net>> Subject: Re: [xcat-user] Erroneous DNS entry creation EXTERNAL SENDER the makedhcp error message is from ipv6 defined in the network table 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",, looks like idrac is the interface name for `169.254` ip address, do u use ipv6 ipaddress? can u replace it with `169.254` ipv4 address in the network table ? after make changes, run `makedns -n` to created new named conf file and restart named service. ................................................................... Casandra Hong Qiu Phone: (845) 433-9291, t/l 293-9291 Office: Building 8, 3-B-04 cxh...@us.ibm.com<mailto:cxh...@us.ibm.com> [Inactive hide details for Sajesh Singh ---08/03/2020 10:37:17 AM---Still no luck cat /etc/resolv.conf |grep -v "#"]Sajesh Singh ---08/03/2020 10:37:17 AM---Still no luck cat /etc/resolv.conf |grep -v "#" From: Sajesh Singh <ssi...@amnh.org<mailto:ssi...@amnh.org>> To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto:xcat-user@lists.sourceforge.net>> Date: 08/03/2020 10:37 AM Subject: [EXTERNAL] Re: [xcat-user] Erroneous DNS entry creation ________________________________ Still no luck cat /etc/resolv.conf |grep -v "#" search mendel.sdmz.amnh.org nameserver 192.168.247.254 nslookup mendel-head Server: 192.168.247.254 Address: 192.168.247.254#53 Name: mendel-head.mendel.sdmz.amnh.org Address: 192.168.247.254 Name: mendel-head.mendel.sdmz.amnh.org Address: 169.254.0.2 ==================================================== ip addr show output : lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eno3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000 link/ether e4:43:4b:b5:03:ac brd ff:ff:ff:ff:ff:ff inet 216.73.255.85/26 brd 216.73.255.127 scope global eno3 valid_lft forever preferred_lft forever inet6 fe80::e643:4bff:feb5:3ac/64 scope link valid_lft forever preferred_lft forever 3: eno4: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000 link/ether e4:43:4b:b5:03:ad brd ff:ff:ff:ff:ff:ff 4: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000 link/ether e4:43:4b:b5:03:a8 brd ff:ff:ff:ff:ff:ff inet 192.168.247.254/24 brd 192.168.247.255 scope global eno1 valid_lft forever preferred_lft forever inet 192.168.243.254/24 brd 192.168.243.255 scope global eno1:0 valid_lft forever preferred_lft forever inet6 fe80::e643:4bff:feb5:3a8/64 scope link valid_lft forever preferred_lft forever 5: eno2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000 link/ether e4:43:4b:b5:03:aa brd ff:ff:ff:ff:ff:ff 6: idrac: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 1000 link/ether f4:02:70:d3:86:7f brd ff:ff:ff:ff:ff:ff inet 169.254.0.2/16 brd 169.254.255.255 scope global idrac valid_lft forever preferred_lft forever inet6 fde1:53ba:e9a0:de11:f602:70ff:fed3:867f/64 scope global dynamic mngtmpaddr valid_lft 86287sec preferred_lft 14287sec inet6 fe80::f602:70ff:fed3:867f/64 scope link valid_lft forever preferred_lft forever 7: ib0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 65520 qdisc fq_codel state UP group default qlen 256 link/infiniband 80:00:01:07:fe:80:00:00:00:00:00:00:1c:34:da:03:00:48:44:18 brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff inet 10.224.15.254/24 brd 10.224.15.255 scope global ib0 valid_lft forever preferred_lft forever inet6 fe80::1e34:da03:48:4418/64 scope link valid_lft forever preferred_lft forever ========================================================================== As for makedhcp the command works, it only complains about ipv6 which we are not using: makedhcp -a Error: [mendel-head]: The file /etc/sysconfig/dhcpd6 doesn't exist, check the dhcp server Error: [mendel-head]: Could not add the subnet ::1 for interface lo into /etc/dhcp/dhcpd.conf. Please verify the xCAT database matches networks defined on this system. Error: [mendel-head]: Could not add the subnet fde1:53ba:e9a0:de11::/64 for interface idrac into /etc/dhcp/dhcpd.conf. Please verify the xCAT database matches networks defined on this system. mendel-c0001: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-c0002: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-c0003: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-c0004: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-c0005: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-c0006: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-c0007: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-c0008: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-c0009: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-c0010: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-c0011: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-c0012: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-c0013: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-c0014: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-c0015: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-c0016: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-c0017: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-c0018: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-c0019: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-c0020: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-c0021: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-c0022: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-g0002: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-b0001: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-b0002: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. mendel-g0001: [mendel-head]: Warning: Skipping DHCPv6 setup due to missing vpd.uuid information. -- SS From: Casandra H Qiu <cxh...@us.ibm.com<mailto:cxh...@us.ibm.com>> Sent: Friday, July 31, 2020 5:22 PM To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto:xcat-user@lists.sourceforge.net>> Subject: Re: [xcat-user] Erroneous DNS entry creation EXTERNAL SENDER the `domain` name define in the site is different from `nslookup` output. from the site table, the /etc/resolv.conf file should looks like search mendel.sdmz.amnh.org nameserver 192.168.247.254 can u show me "ip addr show" ? is your makedhcp command working? Thanks, Casandra Qiu ................................................................... Casandra Hong Qiu Phone: (845) 433-9291, t/l 293-9291 Office: Building 8, 3-B-04 cxh...@us.ibm.com<mailto:cxh...@us.ibm.com> [Inactive hide details for Sajesh Singh ---07/31/2020 03:05:53 PM---No errors related to that IP address. Only error is the foll]Sajesh Singh ---07/31/2020 03:05:53 PM---No errors related to that IP address. Only error is the following: Ignoring host idrac.local, it doe From: Sajesh Singh <ssi...@amnh.org<mailto:ssi...@amnh.org>> To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto:xcat-user@lists.sourceforge.net>> Date: 07/31/2020 03:05 PM Subject: [EXTERNAL] Re: [xcat-user] Erroneous DNS entry creation ________________________________ No errors related to that IP address. Only error is the following: Ignoring host idrac.local, it does not belong to any nets defined in networks table or the net it belongs to is configured to use an external nameserver. ==================================== tabdump site #key,value,comments,disable "blademaxp","64",, "domain","mendel.sdmz.amnh.org",, "fsptimeout","0",, "installdir","/install",, "ipmimaxp","64",, "ipmiretries","3",, "ipmitimeout","2",, "consoleondemand","no",, "master","192.168.247.254",, "forwarders","216.73.240.142,216.73.240.143",, "nameservers","192.168.247.254",, "maxssh","8",, "ppcmaxp","64",, "ppcretry","3",, "ppctimeout","0",, "powerinterval","0",, "syspowerinterval","0",, "sharedtftp","1",, "SNsyncfiledir","/var/xcat/syncfiles",, "nodesyncfiledir","/var/xcat/node/syncfiles",, "tftpdir","/tftpboot",, "xcatdport","3001",, "xcatiport","3002",, "xcatconfdir","/etc/xcat",, "timezone","America/New_York",, "useNmapfromMN","no",, "enableASMI","no",, "db2installloc","/mntdb2",, "databaseloc","/var/lib",, "sshbetweennodes","ALLGROUPS",, "dnshandler","ddns",, "vsftp","n",, "cleanupxcatpost","no",, "dhcplease","43200",, "auditnosyslog","0",, "auditskipcmds","ALL",, "dhcpinterfaces","mendel-head|eno1",, ============================== xcatprobe xcatmn -i eno1 [mn]: Checking all xCAT daemons are running... [ OK ] [mn]: Checking xcatd can receive command request... [ OK ] [mn]: Checking 'site' table is configured... [ OK ] [mn]: Checking provision network is configured... [ OK ] [mn]: Checking 'passwd' table is configured... [ OK ] [mn]: Checking important directories(installdir,tftpdir) are configured... [ OK ] [mn]: Checking SELinux is disabled... [ OK ] [mn]: Checking HTTP service is configured... [ OK ] [mn]: Checking TFTP service is configured... [FAIL] [mn]: TFTP service isn't ready on 192.168.247.254, stop tftp service and start it by restarting xcatd [mn]: Checking DNS service is configured... [ OK ] [mn]: Checking DHCP service is configured... [FAIL] [mn]: makedhcp xcatmntest failed [mn]: Run 'makedhcp -n' if it has not been ran before. [mn]: Checking NTP service is configured... [ OK ] [mn]: Checking rsyslog service is configured... [ OK ] [mn]: Checking firewall is disabled... [WARN] [mn]: Firewall is configured on current server [mn]: Checking minimum disk space for xCAT ['/tmp' needs 1GB;'/var' needs 1GB;'/install' needs 10GB]... [ OK ] [mn]: Checking Linux ulimits configuration... [ OK ] [mn]: Checking network kernel parameter configuration... [ OK ] [mn]: Checking xCAT daemon attributes configuration... [ OK ] [mn]: Checking xCAT log is stored in /var/log/xcat/cluster.log... [WARN] [mn]: No log file /var/log/xcat/cluster.log found [mn]: Checking xCAT management node IP: <192.168.247.254> is configured to static... [ OK ] [mn]: Checking dhcpd.leases file is less than 100M... [ OK ] =================================== SUMMARY ==================================== [MN]: Checking on MN... [FAIL] Checking TFTP service is configured... [FAIL] TFTP service isn't ready on 192.168.247.254, stop tftp service and start it by restarting xcatd Checking DHCP service is configured... [FAIL] makedhcp xcatmntest failed Run 'makedhcp -n' if it has not been ran before. Checking firewall is disabled... [WARN] Firewall is configured on current server Checking xCAT log is stored in /var/log/xcat/cluster.log... [WARN] No log file /var/log/xcat/cluster.log found [root@mendel-head ~]# ps -ef|grep tftp root 2251 31475 0 15:01 pts/27 00:00:00 grep --color=auto tftp root 7561 1 0 Jul26 ? 00:00:00 /usr/sbin/in.tftpd -v -l -s /tftpboot -m /etc/tftpmapfile4xcat.conf [root@mendel-head ~]# ps -ef|grep dhcp root 2253 31475 0 15:01 pts/27 00:00:00 grep --color=auto dhcp dhcpd 5725 1 0 Jul26 ? 00:00:00 /usr/sbin/dhcpd -f -cf /etc/dhcp/dhcpd.conf -user dhcpd -group dhcpd --no-pid eno1==================== ====================== Strangely enough tftp and dhcpd are running and configured as I have been booting and rebooting my nodes without issue. -- -SS- From: Casandra H Qiu <cxh...@us.ibm.com<mailto:cxh...@us.ibm.com>> Sent: Friday, July 31, 2020 2:51 PM To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto:xcat-user@lists.sourceforge.net>> Subject: Re: [xcat-user] Erroneous DNS entry creation EXTERNAL SENDER 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<mailto:cxh...@us.ibm.com> [Inactive hide details for Sajesh Singh ---07/31/2020 02:37:17 PM---No change after changing to IP address of MN and reran maked]Sajesh Singh ---07/31/2020 02:37:17 PM---No change after changing to IP address of MN and reran makedns. -SS- From: Sajesh Singh <ssi...@amnh.org<mailto:ssi...@amnh.org>> To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto: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<mailto:cxh...@us.ibm.com>> Sent: Friday, July 31, 2020 2:31 PM To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto: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<mailto: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<mailto:ssi...@amnh.org>> To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto: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<mailto:cxh...@us.ibm.com>> Sent: Friday, July 31, 2020 1:46 PM To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto: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<mailto: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/host]Sajesh 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<mailto:ssi...@amnh.org>> To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto: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<mailto:cxh...@us.ibm.com>> Sent: Friday, July 31, 2020 1:11 PM To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto: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<mailto: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 entr]Sajesh 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<mailto:ssi...@amnh.org>> To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto: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<mailto:cxh...@us.ibm.com>> Sent: Friday, July 31, 2020 11:27 AM To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto: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<mailto:cxh...@us.ibm.com> [Inactive hide details for Sajesh Singh ---07/30/2020 04:32:53 PM---CentOS 8 xCat 2.16]Sajesh Singh ---07/30/2020 04:32:53 PM---CentOS 8 xCat 2.16 From: Sajesh Singh <ssi...@amnh.org<mailto:ssi...@amnh.org>> To: "xcat-user@lists.sourceforge.net<mailto:xcat-user@lists.sourceforge.net>" <xcat-user@lists.sourceforge.net<mailto: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. 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