Security in terms of "computer security", such as protection of information, protection from theft or data destruction.

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chrome is blocking one of my intranet sites

for some reason chrome is blocking one of my intranet websites. If I open this site using another web browser, it is ok, but with chrome I get attached warning message. I know I can click on details ...
0
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0answers
137 views

security: changing sudo permissions in /etc/sudoers on Debian 7.8

I have a single-user home system running Debian 7.8 console with desktop installed but default runlevel 3 boot. I added my limited user account to the sudo group using adduser for the purpose of ...
0
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1answer
26 views

How to restrict access to Ethernet ports outside of physical permiter

I have several PoE IP webcams installed on my house. Each mounting point has only one wire going to it: the Cat6 with 8P8C plug at the end, which both powers and communicates with the camera. I ...
1
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1answer
68 views

How do I protect my hosts in an IPv6 world?

I realize that IPv6 adoption is a long way off but I'm trying to understand the basics in order to stay ahead of the curve, and also just for fun. Communicating using IPv6 is no problem. It works ...
0
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1answer
30 views

Catching malware and demonstrate it through windows logs

I need to catch a virus/malware on purpose on a VM and demonstrate the infection through windows logs analysis. I am using both syslog and eventlog analyzer, but no sign of events logged. I caught on ...
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1answer
71 views

Did I just send my private ssh key?

I was setting up ssh for git following this guide. I used the key before on another system successfully, expecting it to work now too I tested it with: ssh -v -T git@github.com And received the ...
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0answers
19 views

How to install an program on Windows without giving access to device?

I need to install a program on an old Windows XP computer from an untrusted source. Is there a way to install it securely without giving it access to my data etc? (Also it should not be able to ...
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1answer
36 views

external IPs maps to router-admin pages is a big threat to security

when we type the external IP address of some networks, Router's admin page gets loaded.If the admin doesn't request to change the external IP of his network, the network is vulnerable to ...
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0answers
78 views

Toshiba Satellite c55-a-1rg no bios password prompt

Have an eerily similar issue like the individual here: Toshiba Satellite L75D-A7280 BIOS doesn't ask for set administrative password Tried the solution posted there, did not work. My bios is ...
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3answers
76 views

How does a password manager protect me if I have a keylogger on my computer?

Password managers arguably provide greater security since it allows users to easily create unique, difficult-to-guess passwords for every website they log in to. But, if someone has a keylogger on ...
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2answers
46 views

What is browser fingerprinting and why should I want to avoid it?

What is browser-fingerprinting and why shoould I want to avoid it? If that is related, I am already using adblock and do-not-track.
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1answer
61 views

How to disable SSLv3 for POODLE attack

I want to Disable SSLv3 to restrict the POODLE attack on my website My website is hosted on Microsoft Windows Server 2003 System I am using Apache Tomcat as an application server with thee version ...
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0answers
34 views

Some programs do not run on certain drives

I have multiple games downloaded from Steam etc. I also have 3 hard drives, 1 internal(C:), 2 external(F: and G:). When I install games on C or F, all games run perfectly. but when I install games ...
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2answers
153 views

How to remove password of PDF with known password? [duplicate]

I have a personal PDF that I would like to remove the password for because the password was my old phone number (which I may forget). How can this be done? Maybe relevant that the PDF contains form ...
0
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1answer
43 views

Proxy/firewall windows bypass? [closed]

i am in with a little challenge here. We have a network where the Computers connect to our domain, to log on, and get internet connection... This work as a wireless connection. My boss made a very ...
2
votes
1answer
34 views

Backing up Files [closed]

I'm not even sure if this is the correct place to ask, but I need +5 reputation to ask on meta, so I figured I would give it a shot. I am new to doing computational work on my computer (OSX) and am ...
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1answer
37 views

Is there any defensive element for non-standard voltages on networks?

Assume that an attacker join to our network as a good person and we give him a cable that is connected to one of our switches. Now, If he connect the wires of that cable to a high voltage (60v for ...
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votes
1answer
84 views

What is the difference between Access Token , SID , Impersonation Token?

I've listed the definitions picked up from MSDN but I'd like to know the difference between these with an example of a program(process) that might need to make use of them in different scenarios. ...
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0answers
31 views

Windows Firewall - How can I have multiple public profiles, or multiple private profiles, with different rules?

Windows firewall only seems to have a few options for profiles. Your public, private, and domain profile. What if you want to have 2, or even 3 private profiles though because you move around to ...
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2answers
90 views

Why bother stopping 'root' from ssh login?

Best practice is to remove the ability of 'root' to login over ssh. However, I need to run some Ansible commands and am currently connecting via a user called "amdhske" and then have set this user up ...
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0answers
27 views

Windows Security asking for user name and password

I have a issue where on a Windows 7 AD machine where it is constantly asking for proxy user name and password. We enter the information and it is accepted, then an hour or two later it asks again. The ...
0
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5answers
2k views

Why does a new window open up when I click a link? (Chrome) [closed]

When I click a link on some website, it happens usually when I first boot chrome, then happens again some time later. This new window opens up to a webpage everytime (only variance is the cid ...
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0answers
41 views

Why is my bitlocker data drive unlocked for a few seconds after boot?

To specify: why is the data on my bitlocker encrypted drive available for a few seconds after logging in? After a few seconds the system 'notices' the drives are bitlocker encrypted and need to be ...
0
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1answer
29 views

How can I access an external hard disk through the network and hide it locally

Say I have a Desktop PC attached to it through the USB an external Hard drive. How can I access that drive through my network using my laptop without letting that drive to be accessed or make it ...
0
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1answer
22 views

Securely serving files from cloud

In our web aplication several pages have attachemnts. Some attachments are available for public users and some are secured to registered users. Now we don't have enough infrastructure to host all the ...
0
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1answer
67 views

Free solution for tracking mac kext installs - managing security with disabled kext-signing

The goal is to track when kexts are installed and determine whence kexts came. For instance TRIM is disabled for 3rd party drives in OS X Yosemite. To use a utility like Trim Enabler one must disable ...
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1answer
40 views

Will using log in screen command capture passwords?

According to this tutorial running Ctrl-a H in a screen session creates a running log. In general this sounds great, it seems useful to log everything I type or that is printed to output, with the ...
0
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1answer
34 views

How can I restrict access to a backup drive to only one program in Windows 7?

I got an old computer from some friends, so I decided to wipe it and set it up as a home NAS running Windows 7. My plan is to have two external drives: one as a network-accessible, read/write device ...
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0answers
30 views

Two-factor authentication without a smartphone or peripheral device? [closed]

Believe it or not, but I don't have a smartphone. Or, maybe I do, but I don't want to have to whip it out just to log in to every site I use if I trust my home computer (or personal portable laptop) ...
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0answers
81 views

Can I get Google Authenticator as a stand-alone hardware dongle?

I'm setting up Two-Factor Authentication for our small office that will be used to log in to the corporate web site. The TFA is used via the Google Authenticator app that works great, except for a ...
0
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1answer
49 views

Will sandboxing a program protect my computer from being damaged?

I've heard from a friend that Spotify got attacked by an hacker, which results in it "damaging the hard disks" and stealing private data of the computers where the program is installed. It allegedly ...
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2answers
133 views

How to disable Kon-Boot bypassing a Windows password?

I found Kon-Boot, a tool that bypasses user passwords. With Kon-Boot I can login as any user without entering any password by just pressing Enter. How do I disable Kon-Boot bypassing my normal user ...
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0answers
12 views

Ubuntu can't connect using SSH key stored in “Passwords”

I completed this tutorial. I gave the password manager an empty password for storing the SSH password to an SSH server that I frequently connect to in multiple sessions. When I issued ssh ...
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0answers
511 views

found a bunch of DO_NOT_TRUST_FiddlerRoot personal certificates installed on my system

I was looking at my personal certificates in Google Chrome and found a bunch of DO_NOT_TRUST_FiddlerRoot certs there. I don't know how these got there. Should I be concerned?
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1answer
297 views

Can YouTube safety mode be configured to survive a browser history clear?

I turned on YouTube's safety mode and set it to "Lock this Browser". Despite the text I found on Google's support site, the lock does not seem to work: Safety mode is enabled on a browser level, ...
120
votes
5answers
11k views

How does Linux know that the new password is similar to the previous one?

A few times I tried to change a user password on various Linux machines and when the new password was similar to the old one, the OS complained that they were too similar. I always wondered, how does ...
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votes
2answers
51 views

How to lock my computer through incoming connection directly into my computer

Im on a macbook yosemite, I usually get connected to internet through my landlord's wifi connection. How can I make sure that he cannot see or access my files in my computer (in Shared section of my ...
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3answers
92 views

What is the theory behind securely delete files on a SSD?

Assume that I have a file which I want to securely delete in a ssd. If I do a regular detele and then fill all unused space with a random data file, would this works?
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0answers
45 views

Unable to connect the Ubuntu EC2 instance to VPC LAN on AWS using secondary NIC adapter?

Infrastructure setup: VPC is created with 192.168.254.0/24 netwok Private subnet within VPC (Virtual Private Cloud) is created with 192.168.254.0/25 network Public subnet within the VPC is created ...
32
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1answer
4k views

Why does Google call Thunderbird “less secure”?

I've never had problems using Gmail with Thunderbird yet, but while trying to use a free software client for Google Talk/Chat/Hangout I've discovered that, according to Google's document on "less ...
2
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1answer
41 views

Hidden network seems off and how can I increase my network security

For the last few week a hidden network keeps popping up in my network list. Every time this happens our internet drops is speed and our latency rises. This give me a feeling something is off so I have ...
1
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1answer
162 views

How secure are go lang based HTTP Servers? [closed]

How secure should I consider the go lang net/http framework to be? I understand just how broad a question this is, but I'm wondering how robust I should consider the framework itself, NOT the ...
0
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1answer
42 views

Sophos Remote Management & VuuPC - can my business partner access my private data?

I am not very security-savvy, but after getting loads of viruses and malware, one of my business partners offered to install their best antivirus software on my computer - it's called Sophos. A few ...
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1answer
56 views

make Xvfb listen only on local ip

to use graphical software even on my debian based systems without graphic cards (or in addition to its main graphic) i use the virtual frame buffer x server Xvfb. I am starting it with a little bash ...
2
votes
3answers
105 views

How come the machine name shows up in the email header?

All of the mails I send out arrive with the following header: Received: from My-iMac (12.12.12.12 [12.12.12.12]) by mx.mail.com How come my machine name My-iMac shows up? Is it because of my mail ...
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0answers
31 views

Virtualization for security reasons [closed]

I am going to build a home server and I am planning it's software setup. I would like to expose one or two services to the outer world. Namely, OwnCloud, in order to have remote access to my files. ...
0
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1answer
65 views

Quick Way To 'Hide' or Encrypt Several Terabytes Of Data? [closed]

I'm trying to adopt some best-practices (or at least less-bad-practices) with my external data storage. I'm looking for a way to quickly provide some minimal level of protection from prying eyes for ...
2
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0answers
59 views

Windows' Security warning on all files on local drives

Users usually can download portable software and use it from local drives withount any warning. (I mean small executables just as putty.exe or a portable application from PortableApps.com) However ...
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0answers
12 views

Is system call the only way that a user program can intentionally affect the state of a Linux kernel?

I think there are several ways that a user program can intentionally affect the state of a Linux kernel. By invoking a system call; By invoking mmap() and writing the memory that has been mapped to ...
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0answers
26 views

Really weird behaviour of Apache POST call

Scenario: I have a server with MantisBT, plain HTTP, port 80. Queries are done to SOAP interface through HTTP POST calls. It's not working from my Windows XP PC using Eclipse Luna and Mylyn plugin: ...