Archive for the ‘Linux OS’ Category

Capture Snapshot From ILOM

July 25th, 2021, posted in Solaris
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1)
-> cd /SP/diag/snapshot
 
2) specify the host and directory where the snapshot will be transferred. 
-> set dump_uri=ftp://<valid_ftpuser>@ip_address//<directory>
Enter remote user password: *******
Set ‘dump_uri’ to ‘ftp://root@<ip_address>//tmp’

3) Check status of “snapshot”
-> show

/SP/diag/snapshot

   Targets:

   Properties:

       dataset = normal
       dump_uri = (Cannot show property)
       encrypt_output = false
       result = Running  <– check for completed status

4) Check for the completion of snapshot
-> show

/SP/diag/snapshot

   Targets:

   Properties:

       dataset = normal
       dump_uri = (Cannot show property)
       encrypt_output = false
       result = Collecting data into
ftp://root@<ip_address>//tmp/v4v-t5120a-sp_<ip_address>_2013-08-10T17-43-27.zip
Snapshot Complete.

Done.
References:
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SSH ERROR No Hostkey Alg

July 18th, 2021, posted in Solaris
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Do not ever change the file permissions of rsa and dsa keys. I was working on troubleshooting some ssh issue and I decided to give read permissions to everyone on file /etc/ssh/ssh_host_rsa_key and the next thing I know I cant login to the server via ssh.

#ssh testbox01
no hostkey alg

#ls -l /etc/ssh/ssh_host_rsa_key
-rw——-. 1 root ssh_keys   1679 Nov 25  2014 ssh_host_rsa_key

#ls -l /etc/ssh/ssh_host_dsa_key
-rw——-   1 root     root         668 Aug 20  2007 /etc/ssh/ssh_host_dsa_key

#ls -l /etc/ssh/ssh_host_rsa_key.pub
-rw-r–r–. 1 root root        382 Nov 25  2014 ssh_host_rsa_key.pub
#ls -l /etc/ssh/ssh_host_dsa_key.pub
-rw-r–r–. 1 root root        382 Nov 25  2014 ssh_host_dsa_key.pub
Make sure the permissions are set to 0600 for the private ssh keys and 0644 for public ssh keys(default public keys under /etc/ssh ends with an extension .pub)
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Increase Bash History Size

June 10th, 2021, posted in Solaris
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Add this to your .profile or .bash_profile to increase the history size to 10000

export HISTFILESIZE=10000

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Switch Between the ALOM CMT Shell and the Host Console

April 25th, 2021, posted in Solaris
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Switch Between the ALOM CMT Shell and the Host Console

  1. To switch from the ALOM CMT shell to the host console, type:

    SC> console
    host>
  2. To switch from the console to the ALOM CMT shell, type hash-period:

    host> #.
    sc>
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Checking Last 10 Reboots of a Solaris Server

March 28th, 2021, posted in Solaris
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On your Solaris boxes here, you’d need to doChecking Last 10 Reboots of a Solaris Server,Checking Last 10 Reboots, Solaris Server,Last 10 Reboots of a Solaris Server,Reboots of a Solaris Server,Reboots of a Solaris,Sys DBA,DBA,Reboot
last -10 reboot to actually get the times that the system was rebooted.
As it shows the system down messages, as well as the boot messages.

 

 

root@immam # last -10 reboot
reboot system boot Sun Aug 16 10:53
reboot system down Sun Jun 14 08:50
reboot system boot Sun Jun 14 08:17
reboot system down Mon Mar 2 12:44
reboot system boot Mon Jan 27 10:23
reboot system down Sun Jan 26 13:15
reboot system boot Sun Jan 26 12:36
reboot system down Wed Jan 22 14:40
reboot system boot Mon Jan 20 13:55
reboot system down Mon Jan 20 12:59
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