Monthly Archives: January 2015

named.conf permission denied

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I’m trying to bounce named and continue getting the same error.


[user networkadmin ~]# sudo service named restart ;tail -30 /var/log/messages
Stopping named:                                            [  OK  ]
Starting named:                                            [FAILED]
...
Jan 29 14:18:12 networkadmin named[9865]: ----------------------------------------------------
Jan 29 14:18:12 networkadmin named[9865]: adjusted limit on open files from 4096 to 1048576
Jan 29 14:18:12 networkadmin named[9865]: found 1 CPU, using 1 worker thread
Jan 29 14:18:12 networkadmin named[9865]: using up to 4096 sockets
Jan 29 14:18:12 networkadmin named[9865]: loading configuration from '/etc\/x'

Linux Port Querying

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[root ip-10-249-66-147 bin]# lsof -i tcp:8009
COMMAND  PID USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
java    1368 root   40u  IPv6 185235      0t0  TCP *:8009 (LISTEN)

[root ip-10-249-66-147 bin]# netstat -talnp
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address               Foreign Address             State       PID/Program name   
tcp        0      0 0.0.0.0:22                  0.0.0.0:*                   LISTEN      1132/sshd           
...
LISTEN      1368/java          
tcp        0      0 :::8009                     :::*                        LISTEN      1368/java           
tcp        0      0 :::8080                     :::*                        LISTEN      1368/java           
tcp        0      0 ::ffff:127.0.0.1:5201       :::*                        LISTEN      25725/java

Start Xenserver VM from cmd line

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  1. Use vm-list to determine the name of the vm you want to start 
    [root my-xen-server-box ~]# xe vm-list
uuid ( RO)           : 60c1607b-1e51-bfe7-088e-a4a868b80f7f
     name-label ( RW): docker
    power-state ( RO): running


uuid ( RO)           : 96b5c2e3-5c76-a354-74ef-c324069a7c91
     name-label ( RW): jenkins
    power-state ( RO): running


uuid ( RO)           : e0bac120-5676-50fc-7989-c11f5cf1537d
     name-label ( RW): puppet_host1
    power-state ( RO): running


uuid ( RO)           : cc502056-ee19-1c97-a90c-a6dfe766db67
     name-label ( RW): devops
    power-state ( RO): halted


uuid ( RO)           : c4555386-c498-4434-8926-3a42e607aabc
     name-label ( RW): networkadmin
    power-state ( RO): running


uuid ( RO)           : f312e45d-506e-a626-5b28-ba9a179f5524
     name-label ( RW): webserver
    power-state ( RO): halted


uuid ( RO)           : dc50cbba-ec9f-4fba-8135-d104a4dc0c61
     name-label ( RW): Control domain on host: xenserver
    power-state ( RO): running


uuid ( RO)           : e4177291-c3e8-8f6c-93ad-a127fe4e9b62
     name-label ( RW): puppet_host2
    power-state ( RO): running


uuid ( RO)           : dbe265c4-a19d-8211-eb57-161359509a2c
     name-label ( RW): puppet_master
    power-state ( RO): running
  2. Now use the name-label to start the VM 
    [root xenserver ~]# xe vm-start vm=webserver
[root xenserver ~]#

Xenserver list vms

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[root my-xen-server-box ~]# xe vm-list
uuid ( RO)           : 60c1607b-1e51-bfe7-088e-a4a868b80f7f
     name-label ( RW): docker
    power-state ( RO): running


uuid ( RO)           : 96b5c2e3-5c76-a354-74ef-c324069a7c91
     name-label ( RW): jenkins
    power-state ( RO): running

...

Connect to a xen vm from xenconsole

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I’m having issues ssh’ing into a XenServer VM. Therefore, I want to connect via CMD line to control a xen vm.

  1. ssh to my-xen-server-box

    ssh my-xen-server-box
  2. List your VMs & take note of the uuid’s

    [root my-xen-server-box ~]# xe vm-list
uuid ( RO)           : 60c1607b-1e51-bfe7-088e-a4a868b80f7f
     name-label ( RW): docker
    power-state ( RO): running


uuid ( RO)           : 96b5c2e3-5c76-a354-74ef-c324069a7c91
     name-label ( RW): jenkins
    power-state ( RO): running


uuid ( RO)           : e0bac120-5676-50fc-7989-c11f5cf1537d
     name-label ( RW): puppet_host1
    power-state ( RO): running


uuid ( RO)           : cc502056-ee19-1c97-a90c-a6dfe766db67
     name-label ( RW): devops
    power-state ( RO): halted


uuid ( RO)           : c4555386-c498-4434-8926-3a42e607aabc
     name-label ( RW): networkadmin
    power-state ( RO): running


uuid ( RO)           : f312e45d-506e-a626-5b28-ba9a179f5524
     name-label ( RW): webserver
    power-state ( RO): halted


uuid ( RO)           : dc50cbba-ec9f-4fba-8135-d104a4dc0c61
     name-label ( RW): Control domain on host: my-xen-server-box
    power-state ( RO): running


uuid ( RO)           : e4177291-c3e8-8f6c-93ad-a127fe4e9b62
     name-label ( RW): puppet_host2
    power-state ( RO): running


uuid ( RO)           : dbe265c4-a19d-8211-eb57-161359509a2c
     name-label ( RW): puppet_master
    power-state ( RO): running
  3. List your domains. Note the uuid column.

    [root my-xen-server-box ~]# list_domains
id |                                 uuid |  state
 0 | dc50cbba-ec9f-4fba-8135-d104a4dc0c61 |     R 
 2 | 60c1607b-1e51-bfe7-088e-a4a868b80f7f |    B  
 4 | e0bac120-5676-50fc-7989-c11f5cf1537d |    B  
 5 | e4177291-c3e8-8f6c-93ad-a127fe4e9b62 |    B  
 6 | dbe265c4-a19d-8211-eb57-161359509a2c |    B  
 7 | 96b5c2e3-5c76-a354-74ef-c324069a7c91 |    B  
 8 | c4555386-c498-4434-8926-3a42e607aabc |    B
  4. Look in the uuid column for your vm’s uuid. Take note of the id column value to the left
  5. Connect to this VM via xenconsole 

    [root my-xen-server-box ~]# /usr/lib/xen/bin/xenconsole 4


Ubuntu 14.04.1 LTS puppet-host1 hvc0

puppet-host1 login: username
Password: 
Last login: Sun Jan 18 11:24:28 PST 2015 on hvc0
Welcome to Ubuntu 14.04.1 LTS (GNU/Linux 3.13.0-44-generic x86_64)

 * Documentation:  https://help.ubuntu.com/

  System information as of Tue Jan 27 11:10:39 PST 2015


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