What logs to provide to IBM for any AIX crash?
Today we will look at one of the basic command of AIX which we should know to collect the support logs from the server. What logs we need to collect...
Tag: system
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Solved: DNS Issue: How to deal with RFC 1918 response from Internet for X.X.XX.XXX.in-addr.arpa warning messages ?
Today we will look at an interesting warning messages on our DNS server and found the requests are coming from some random source say, XXX.XX.X.XX. 1. Issue Details named-security.log:11-Apr-2020 07:41:26.657...
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How to mount a filesystem from backup superblock location ?
Let us look how to mount a filesystem from backup superblock location. In general this is not required, however sometimes in case you feel issue with primary superblock, this way...
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RHEL 7 or CentOS 7: How to view file extent information for XFS filesystem ?
In ext2, ext3, or ext4 filesystems, we used the command filefrag. However for xfs filesystem, the filefrag command shows the offset values and the exact file extent values are not...
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Introduction of SCSI, iSCSI, and SAS in Linux and which is better.
In this article, we will look at the differences between SCSI, iSCSI, and SAS and will understand in brief how they are co-related. 1. SCSI or Small Computer System Interface...
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Difference between NFS v2, v3, v4, v4.1 and v4.2.
In this post we will look at the differences between NFS v2, v3, v4 and the subversions of V4 i.e. v4.1 and v4.2. Difference between NFS v2, v3 and v4...