Questions tagged [debian]

One of the earliest Linux distros and officially consist of only free software. Many distros has been derived from the Debian codebase, like Ubuntu and Knoppix.

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Is the Linux / Debian software and package-management ecosystem secure?

My basic question is this: When we are using the Linux / Debian apt-get or yum package system, we're placing a lot of faith in that the packages we're downloading and installing are secure. For that ...
3
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1answer
401 views

Hacked debian server alternative boot

The server of a customer has been hacked last night. It is a standard debian distribution with mysql, apache and ssh for remote access. The way it has been hacked is very peculiar. The standard URL ...
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1answer
1k views

Copy-and-pasting plaintext data from encrypted container

Suppose we have sensitive information stored in plaintext within a dm-crypt/VeraCrypt encrypted file and this information is copy-and-pasted by a user into a web browser after decrypting (this could ...
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2answers
673 views

How to know if a host has been compromised and re-secure it again? (particular case of a raspberry) [duplicate]

I'm running a raspberry PI and I've accidentally left the 22 port open to it from a public IP for about 24 hours. Raspberries' raspbian distro comes by default with a "pi" user and "raspberry" ...
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1answer
264 views

Starting a server without SElinux or Apparmor [duplicate]

The Debian kernel that compiled for Beaglebone Black, doesn't support SElinux and Apparmor, AFAIK. I just want to know, is it safe to put a server on the internet without SElinux or Apparmor? However ...
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1answer
384 views

How can I check whether file modified time has been spoofed on ext4?

On Debian based system (Ubuntu 14.04.3 server specifically), using ext4 filesystem. How would I discover if files have been changed, but the modified times have been made to look like the files have ...
3
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1answer
271 views

Is binding all private services to the 127.0.0.1 address and then accessing them via SSH using an RSA key pair of 4096 bits secure?

Is it secure to bind all private services only to the 127.0.0.1 address, and then use a local SSH client's local port forwarding with an RSA public / private key pair file of 4096 bits and a ...
1
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2answers
696 views

OpenVPN and running other services on same server

What security implications should I know about/look for when running OpenVPN on the same server as my network cloud controller and apt-cache-ng? I plan on using the same server to run apt-cacher-ng ...
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3answers
1k views

Security of decompression tools

How safe is it to decompress untrusted files with unrar-free? With unzip? I'm using debian jessie. What steps can be taken to minimize the threat while extracting the file's contents?
2
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1answer
221 views

Would placing a hardened virtual machine in a VPS provide more security?

I have been working with DigitalOcean for a while now and while I do like that they make it easy to start up with a fully functioning virtual machine ready to go. It makes me cringe a little though ...
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2answers
3k views

Prevent ARP spoofing with dynamic static entry on Linux

ARP spoofing detection/prevention seems to be quite popular here. With other techniques like port stealing aside, I'm wondering if the following could work to prevent it: Whenever my Linux ...
2
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0answers
68 views

Can high network usage be detected and prevented in Tor? [closed]

I've already asked this question here but as of yet it has no views/answers. I was wondering if there is any way for Tor to detect high network usage in the context of transferring large files using ...