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

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Secure web proxy using squid

I Recently installed squid as a web proxy, it works fine. But the problem is that connection to the proxy server is not encrypted, so it's visible to any mans in the middle by DPI (Deep Packet ...
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1answer
62 views

Why don't you have to press CTRL+ALT+DEL to logon anymore in Windows 8?

In previous versions of Windows, you had to press Ctrl + Alt + Delete to logon, or to unlock a locked workstation. This was because this key sequence was recognized directly by the BIOS, and thus ...
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2answers
40 views

is it possible to turn off screen lock in Mac OSX after 6pm?

I would like to turn off lock screen security when I finish work. Is it possible to do it on a scheduled basis?
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1answer
34 views

How does this SMS Passcode screen work? [closed]

While doing a particular login using my mobile phone number, a SMS Passcode is sent, and then displayed like this on my iPhone: How does it work? Is it an SMS generated with some metadata that the ...
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1answer
72 views

How to display the last user logged in Windows 7 PRO x64 logon

I want that Windows shows the last user logged, so I only need to type my password, and I don't need to select my username. I tough it should be the default Windows behavior, but I've just installed a ...
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4answers
566 views

Should I run my small website in port 80, 8080, or 81?

I am running a small website using nginx. Since there's (probably) not going to be a lot of traffic in my server's lifespan and to avoid random DoS attacks, I am considering setting the web server to ...
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2answers
1k views

“Cannot connect to the real Gmail.com”

Dunno what happened, but suddenly I cannot connect to Gmail from Chrome on this computer: Under "more" it says: What does this mean? gmail.com normally uses encryption (SSL) to protect ...
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1answer
39 views

ubuntu infected by something from windows

when sharing some files with one of my friends who uses windows, i found a suspicious file in his pen-drive, deleted from it, but after that my trash can shows its full, deleted everything , but its ...
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0answers
10 views

What is the best way to share SMIME keys across all my devices?

I have many devices that I would like to use SMIME with IOS (iPad mini) Windows (Work PC) OSX (Home PC) Android (Cell phone) Web Browser (at my girlfriends) Since a SMIME message can only be sent ...
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1answer
78 views

Unable to add secure Java site

I need to add a secure site to allow Java apps to be run in my web browser. I use Windows 7 and the latest Java build, Java 7 update 17 build 1.7.0_17-b02. However, in the Security tab of the Java ...
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0answers
38 views

How is LUKS dm-crypt secure if the key is stored with the encrypted data?

I'm not a an expert in cryptography, but I've read the project's faqs. How is LUKS dm-crypt secure if the key is stored with the encrypted data? To me, this seems like hanging a door key on the door ...
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4answers
92 views

What's the best and 'fastest' way to secure data on an external HDD?

I have a transcend 1 TB HDD that has some sensitive data in it. I want no one to be able to access that drive. I know that there's an option to encrypt the whole drive but I think it will be ...
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1answer
39 views

Is it possible to compile together OS and web server/server apps into a single executable?

I was discussing with a friend the idea of a "single application compiled server", in which the server is compiled together only with the its dependencies into a single executable. Nothing else is on ...
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1answer
63 views

Why can linux users see each others files?

I would have thought that basic security principles would mean that users can't see files in the home directory of other users. Many many years ago I worked on Novell servers and I seem to recall ...
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2answers
109 views

Having no password on windows 7 log in physically, but with password through RDP

So I am trying to make my main desktop be able to reboot right into the desktop without asking for a password, but I still want to be secure when I'm accessing it remotely. No one is ever going to ...
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1answer
32 views

Red fonts in bing search

When I search using Bing, some results are returned in red fonts. Please help me understand what is this indicating? Below is the snapshot illustrating it. Thanks
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2answers
185 views

Infected, back-doored Windows 7, is it safe to keep it using after Kaspersky Anti-Virus clean up? [duplicate]

So I got this computer from my cousin. As far as I can tell, it has LOTS of back-doors, trojans etc. installed. You can see the installed programs as below w/ lots of activeX: I fear these ...
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1answer
45 views

IPS attack message error when I visit a website

I'm on debian wheezy, I have visited a website but this one show me an error that I'm blocked because of IPS attack, the error is: Blocked because of IPS attack, An attack was detected, originating ...
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2answers
235 views

If I'm downloading through a proxy on a virtual machine is my anonymity being jeopardized?

I run a win7 VM on OS X. I am running it with vmare fusion.I have utorrent on my VM and it use a socks5 proxy (setup in the utorrent connection settings) for everything it downloads. Thats all I use, ...
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0answers
15 views

Window folder sharing and security setting on subfolder

How could I set my sharing and permission setting so that the user can access a sub folder but cant not access the folder itself? Currently on my share drive I have a folder "A". With in the folder ...
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2answers
40 views

Why did the command prompt open after I opened the Flash Player setup? [closed]

I opened the setup and alongside the setup window, the command prompt opened. What does this mean? The command prompt window is titled c:\docume~1\owner\locals~1\temp\nsyf.tmp\ump.exe
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2answers
78 views

Can a home user behind a firewall be targetted by a DDoS attack?

I've read about an attack that targets simple home computer users who are playing online poker: Players A and B join a real money 1 on 1 tournament. You cannot unregister from this tournament and if ...
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0answers
17 views

Internet connection dies after some time

Hi, I am using a HP ProBook 4440. I am using the Internet using WiFi connections using the university WiFi but for the last few days I can't get a continuous Internet connection. Whenever I connect ...
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0answers
33 views

NTFS folder permission: Full control for group

I have windows server 2012. Now i am setting some folder permissions. The issue is that the Administrators are not able to edit any of the folders, remotely on LAN. Even if the "Administrators" group ...
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8answers
19k views

My colleague often shuts down my machine through the LAN - how do I prevent it?

This might sound weird. My colleague and I were working on a Windows machine. He frequently shuts it down through the LAN. He usually follows these steps: Access command prompt, enter shutdown -i. ...
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1answer
73 views

What does the NTFS encryption protect against?

I have encrypted a folder from the (Properties>Advanced>Encrypt contents to secure data). However when I change my user profile to another one which is also an administrator the folder seems to be ...
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0answers
43 views

Is it possible to have a folder that only certain programs can write to?

I have an application which generates some data files and exports them to a folder. It is very important that no-one can then edit these files - they should be able to read them but not update ...
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1answer
46 views

Should fwknop be listening to a port?

I am trying to install fwknop on a VirtualBox Debian 7 machine. It installs with no error (apt-get install fwknop-server -y), i made the modification in /etc/default/fwknop-server file so daemon ...
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1answer
41 views

Can applications be installed remotely on OS X?

I would like to know how to install Mac applications remotely. Could you tell me about it? Reason: My concern is that my home network is sometimes hacked and my DHCP server goes down, so I wonder ...
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1answer
35 views

I've ported my website locally installed to Internet. Is it secure?

Sorry about that ugly title, but I've managed to share my Wordpress installed locally (using WAMP server) to internet, just porting my 80 port to the public 1234 port in my router configuration. So, ...
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2answers
763 views

What are the security implications of having submitted password in username field?

Let's say I typed my password into the username textbox of a frequently-visited website (https of course) and hit enter before I noticed what I was doing. Is my password now sitting in plaintext in a ...
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1answer
44 views

How to structure/protect directories on web server - media temple

I'm pretty new to running my own websites, and wanted to know how to protect directories/files from malicious users. I'm mostly concerned with protecting PHP files. For example, my website has a PHP ...
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2answers
737 views

Whats the link between security and processors

So I have been on the web for a while today and came across the intel xeon processors. In the feature list, it mentions security. I remember in many other places, I've seen security somehow linked ...
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67 views

“Access is denied” when editing Windows Store app files even after taking ownership

I'm having a strange problem. I want to edit Windows Store apps' files, but for some reason the WindowsApps folder doesn't give even administrators access by default. So I take ownership of the folder ...
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0answers
25 views

What does it mean by Inheritance in advanced security tab of a file or folder?

In windows 7 and 8 there is a option in folder or file's advanced security tab called enable or disable inheritance.What will happen if I enable or disable this option?What is by default for a file or ...
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2answers
65 views

Why does after Installing new windows folder and file asking for Permission?

When I install new Windows OS (Windows 8.1, Windows 8, Windows 7), many files and folders become inaccessible. I mean I cannot access those folders and files, cannot copy, rename or move them, and I ...
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4answers
80 views

finding MAC address from a remote computer using a private IP

I want to know the MAC address of a device from a remote computer. I also want to know the security threats if somebody knows my MAC address?
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0answers
54 views

Arch Linux Encrypt entire drive

My Raspberry Pi is set up as a PHP MySQL (Percona) server and I think that I have managed to make it quite resilient against online attacks but it is still very vulnerable against someone just taking ...
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0answers
15 views

Can I run a VPN server with certificates only, and no password/pre-shared keys?

I've seen several writeups around discussing VPN server configuration. In all of them, there are 2 or 3 pre-shared keys / passwords used at various levels of the tunnel -- one for IPSec, one for ...
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1answer
39 views

The Risk of Port Forwarding to a VOIP Device

My VOIP provider uses a device to supply the service. The device is on my side of my router and part of my LAN. He requires I forward a very large range of ports to his device (something like 5000 ...
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0answers
59 views

What's the best way to switch Antivirus software? [closed]

I currently run Microsoft Security Essentials (or whatever it's called these days). Recent reports of MSE's effectiveness have left me feeling worried and paranoid about the safety of my system. It ...
0
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1answer
55 views

Is there a limit to the number of IP addresses for a Windows Firewall rule's Scope?

I've got a Powershell script that adds IP addresses trying to run brute force attacks on my server to a firewall rule that blocks them from accessing it. Recently it stopped working, and started ...
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0answers
37 views

How can I confirm if a process is being blocked from communicating on a network?

I have a user system with a third-party vendor product that needs to communicate with the network. We're noticing symptoms that suggests that the program/process is being blocked from communicating ...
523
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17answers
60k views

How are pseudorandom and truly random numbers different and why does it matter?

I've never quite got this. Just say you write a small program in any language at all which rolls some dice (just using dice as an example). After 600,000 rolls, each number would have been rolled ...
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1answer
60 views

How is it possible for a person to upload files to a site they don't have credentials to? [closed]

A little while ago I got this email: hi there, i am [name], security expert. your website is not secured. you use a weak password. and you didnt install security to prevent hacking/malware ...
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2answers
88 views

Source port 443?

I'm might embarrass myself with this question, because of something really obvious, but I'm puzzled. My home broadband firewall log says it has been blocking incoming TCP traffic with a source (!) ...
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0answers
63 views

Network Security Compromised (Need Advice) VPN, VNC, XP

I'm running a small LAN with no WiFi. 2 XP machines, 1 Vista, 2 printers, and a DVR for security cameras. Last week I set up RealVNC (the personal version, with no encryption) so that I could Remote ...
2
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1answer
42 views

Simple way of demonstrating that a VPN is working, that is easy for novices to understand/comprehend?

I am developing a Linux-based security appliance. One of its functions is to cloak a user's traffic within a VPN, and I need a simple way of demonstrating that this function is working properly, and ...
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2answers
88 views

how to fix if a site is always redirected to another phishing site?

I am running Windows XP SP3. Before I used to do online banking using this computer without problem. But recently, when I will visit my bank to do online banking, https://www.mybdo.com.ph , it gives ...
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8answers
8k views

What is the danger of inserting and browsing an untrusted USB drive?

Suppose someone wants me to copy some files to their USB stick. I'm running fully-patched Windows 7 x64 with AutoRun disabled (via Group Policy). I insert the USB drive, open it in Windows Explorer ...