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Full Discussion: How to fix and manage data in rescue mode?
Top Forums UNIX for Beginners Questions & Answers How to fix and manage data in rescue mode? Post 303036497 by baris35 on Friday 28th of June 2019 04:14:57 PM
Old 06-28-2019
Hello Rudic,
CPU is 100% and server is not accessible via ssh in normal boot mode.

The problem started after nfs installation. I received a warning message from authorities emphasizing that nfs usage has some risks as attackers could sniff the system via udp ports. Not sure about that. Company replaced the motherboard in the morning which did not solve the issue. After an eight hours of intervention process they said, server is under attack.
I am still not sure about that so I am planning to edit my settings in rescue mode.

Regarding system disk details:
Code:
root@rescue:~# df -aTh
Filesystem                        Type        Size  Used Avail Use% Mounted on
none                              proc           0     0     0    - /proc
none                              sysfs          0     0     0    - /sys
devtmpfs                          devtmpfs     16G     0   16G   0% /dev
178.33.124.49:/home/pub/rescue.v8 nfs         1.8T  298G  1.4T  18% /nfs
tmpfs                             tmpfs        16G  1.7M   16G   1% /rw
aufs                              aufs         16G  1.7M   16G   1% /
178.33.124.49:/home/pub/pro-power nfs         1.8T  298G  1.4T  18% /power
178.33.124.49:/home/pub/commonnfs nfs         1.8T  298G  1.4T  18% /common
securityfs                        securityfs     0     0     0    - /sys/kernel/security
tmpfs                             tmpfs        16G     0   16G   0% /dev/shm
devpts                            devpts         0     0     0    - /dev/pts
tmpfs                             tmpfs        16G  9.7M   16G   1% /run
tmpfs                             tmpfs       5.0M     0  5.0M   0% /run/lock
tmpfs                             tmpfs        16G     0   16G   0% /sys/fs/cgroup
cgroup                            cgroup         0     0     0    - /sys/fs/cgroup/systemd
pstore                            pstore         0     0     0    - /sys/fs/pstore
cgroup                            cgroup         0     0     0    - /sys/fs/cgroup/cpuset
cgroup                            cgroup         0     0     0    - /sys/fs/cgroup/cpu,cpuacct
cgroup                            cgroup         0     0     0    - /sys/fs/cgroup/blkio
cgroup                            cgroup         0     0     0    - /sys/fs/cgroup/memory
cgroup                            cgroup         0     0     0    - /sys/fs/cgroup/devices
cgroup                            cgroup         0     0     0    - /sys/fs/cgroup/freezer
cgroup                            cgroup         0     0     0    - /sys/fs/cgroup/net_cls,net_prio
cgroup                            cgroup         0     0     0    - /sys/fs/cgroup/pids
systemd-1                         autofs         0     0     0    - /proc/sys/fs/binfmt_misc
hugetlbfs                         hugetlbfs      0     0     0    - /dev/hugepages
debugfs                           debugfs        0     0     0    - /sys/kernel/debug
mqueue                            mqueue         0     0     0    - /dev/mqueue
tmpfs                             tmpfs        16G   12K   16G   1% /tmp
configfs                          configfs       0     0     0    - /sys/kernel/config
fusectl                           fusectl        0     0     0    - /sys/fs/fuse/connections
rpc_pipefs                        rpc_pipefs     0     0     0    - /run/rpc_pipefs

Kind regards
Boris
Last edited by baris35; 06-28-2019 at 06:06 PM.. Reason: requested info added
 

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LEARN ABOUT DEBIAN

scrounge-ntfs

scrounge-ntfs(8)					    BSD System Manager's Manual 					  scrounge-ntfs(8)

NAME

     scrounge-ntfs -- helps retrieve data from corrupted NTFS partitions

SYNOPSIS

     scrounge-ntfs -l disk
     scrounge-ntfs -s disk
     scrounge-ntfs [-m mftoffset] [-c clustersize] [-o outdir] disk start end

DESCRIPTION

     scrounge-ntfs is a utility that can rescue data from corrupted NTFS partitions. It writes the files retrieved to another working file system.
     Certain information about the partition needs to be known in advance.

     The -l mode is meant to be run in advance of the data corruption, with the output stored away in a file. This allows scrounge-ntfs to recover
     data reliably. See the 'NOTES' section below for recover info when this isn't the case.

OPTIONS

     The options are as follows:

     -c 	 The cluster size (in sectors). When not specified a default of 8 is used.

     -l 	 List partition information for a drive. This will only work when the partition table for the given drive is intact.

     -m 	 When recovering data this specifies the location of the MFT from the beginning of the partition (in sectors). If not specified
		 then no directory information can be used, that is, all rescued files will be written to the same directory.

     -o 	 Directory to put rescued files in. If not specified then files will be placed in the current directory.

     -s 	 Search disk for partition information. (Not implemented yet).

     disk	 The raw device used to access the disk which contains the NTFS partition to rescue files from. eg: '/dev/hdc'

     start	 The beginning of the NTFS partition (in sectors).

     end	 The end of the NTFS partition (in sectors)

NOTES

     If you plan on using this program sucessfully you should prepare in advance by storing a copy of the partition information. Use the -l option
     to do this. Eventually searching for disk partition information will be implemented, which will solve this problem.

     When only one partition exists on a disk or you want to rescue the first partition there are ways to guess at the sector sizes and MFT loca-
     tion. See the scrounge-ntfs web page for more info:

     http://memberwebs.com/swalter/software/scrounge/

AUTHOR

     Stef Walter <stef@memberwebs.com>

scrounge-ntfs							   June 1, 2019 						     scrounge-ntfs
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