How to Secure DNS Server?
Most internet applications run based on DNS then it may be emails, website browsing, messengers,…
Use following command to check the badblocks of the hard drive (HDD)/sbin/badblocks -vv /dev/hdXXThis is a part of the e2fsprogs-1.27-3 rpm which is full of utilities used for file system.
/sbin/badblocks
/sbin/debugfs
/sbin/dumpe2fs
/sbin/e2fsck
/sbin/e2image
/sbin/e2label
/sbin/fsck
/sbin/fsck.ext2
/sbin/fsck.ext3
/sbin/mke2fs
/sbin/mkfs.ext2
/sbin/mkfs.ext3
/sbin/resize2fs
/sbin/tune2fs
/usr/bin/chattr
/usr/bin/lsattr
/usr/bin/uuidgen
/usr/sbin/mklost+found
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