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Closed 2 years ago.
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I was running a RabbitMQ server on my Linux machine, when my disk became full I couldn't make any more connection requests to my rabbitMQ server, when I cleaned up the disk, the issue got resolved.
Yes, that is possible.
At lot of daemon do access logging. If the disk is full it might happen that logging fails and no more network requests are possible.
Side note:
If a daemon filled the disk with a log file, it might not be enough to delete the log file. You might need to restart/reload the daemon as the file isn't actually deleted while it is opened.
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Closed 2 years ago.
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All my pictures and important info got deleted, alon with my exodus wallet recovery phrase and everything!! Is there a way i could get those data back??
If you didn't explicitly wipe out the drives, you can still get your stuff. The OS just lost track of where everything is.
If you load a Windows image to a stick and boot from it, you will probably find your files.
Althoght they wont be inside the Documents folder or whatever default folders windows comes with. You will have to get into your drive and search for the folder. The path will probably under users or something.
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Closed 3 years ago.
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I am using 2 operation system via Grub, Linux for work and Windows for games.
My question is, if I get some virus on Windows, can it some how damage my files that are stored on a disk with Linux? Or get access for files on Linux disk? Can a virtual disk be exposed to some another vulnerabilities from another virtual disk with infected Windows?
Sure it can. The virus can and will do what it is supposed to do. "Virus" is a very broad term for this question. Can you give a little more details or context?
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Closed 4 years ago.
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I am launching an EC2 instance with Shared tenancy. Can I get to know what are the other processes run on the same host by other users?
If the size of my /tmp reports 100% usage whereas the current contents of the disk under my login is only 50%, does that mean the disk usage (df) is taking size details from other users' file size as well, present under the same folder?
Your Amazon EC2 instance is a virtual machine. It has zero visibility of anything else running on the same host computer.
Individual 'virtual CPUs' are not shared
Memory is not shared
Network is logically separated
Disk is virtual, but logically separated
The disk is viewable only from that specific EC2 instance
Bottom line: Nothing that anybody else does on the same host will not impact your virtual machine. Whatever you are experiencing with df is purely related to your own instance and is related to the operating system you are using (Linux). It is unrelated to AWS/EC2.
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Closed 5 years ago.
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I am pretty new in the cloud-init. I got VM everything is setup and running and I designed the reboot mechanism in the VM to use when VM requires reboot after installing updates. So when I reboot the VM Apache is not working by itself after reboot until I run the start command. Is there a way to make Apache start after every reboot?
problem solved, after reading this two sites
apache-server-doesnt-start-automatically
starting_apache_web_server_at_every_reboot_for_debian_ubuntu_linux
I added this line:
cloud_config['runcmd'].append(['update-rc.d', 'apache2', 'enable'])
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Closed 8 years ago.
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i am newbie in network administrator..
One week ago, my server work perfectly. My Server can serves 600++ users at the same time and only use 40% cpu.
Today there is something wrong with my server. My server shows 100% cpu usage when it serves 100 users at the same time.
After i check, i found a process /boot/.IpTables that use high cpu.
What happen with my server? Is my server hacked or what?
This is SS my server process :
OK, looks like your system has been had. I did some googling for /boot/.Iptables, and it appears to be malware.
https://askubuntu.com/questions/407457/help-my-server-has-been-hacked-iptables-and-iptablex-in-boot
https://www.centos.org/forums/viewtopic.php?f=17&t=46704
My personal recommendation would be to take the machine of the network immediately, clone the drive to a USB disk, and re-install (preferably w/ a new set of passwords, and all available patches applied).