Security is not a product, but a process.

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3answers
2k views

How useful is Bitlocker without a TPM?

When you install Bitlocker on a system without a TPM you need to put the startup key on a flash drive. Since you can hardly expect the user to store his notebook and flash drive separately, would ...
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1answer
491 views

XML Schema For MBSA Reports

I'm in the process of creating a script to run the command line version of Microsoft Baseline Security Analyzer (mbsacli.exe) against all of our servers. Since the MBSA reports are provided as XML ...
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2answers
391 views

.htaccess redirect - Is it secure?

This works; I'm not having trouble, but I want to be certain that this is bulletproof. I came up with a neat little .htaccess redirect, but I am not sure if it is secure; do you know? <IfModule ...
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1answer
255 views

IIS6, NETWORK SERVICE and IIS_WPG

Is it correct that IIS6, by default, runs under the NetworkService account (NETWORK SERVICE)? and that NetWorkService is a member of the IIS_WPG group? Reference: Microsoft TechNet page on IIS6 ...
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1answer
134 views

Script for checking the nologin accounts and then disable the account

"Could you please share the scripts which does the below ?" I have written a script that scans all the relevent logs daily, makes a list of people that have had any activity that day, and maintains ...
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2answers
2k views

Turn off “isolation mode” in Vista Task Scheduler?

In Windows Vista (and I assume Windows 7) Microsoft has improved the security of processes that are run through the Task Scheduler, namely http://technet.microsoft.com/en-us/appcompat/aa906020.aspx: ...
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1answer
125 views

Security issues with Web Services and SSRS

I have a developer who would like to interact with the web services on the SSRS server. The way I understand it is that they would like to populate a list of reports in a folder so that the user can ...
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1answer
423 views

What user should an application pool bound to a Wordpress site use in IIS? [duplicate]

I've installed a wordpress site in a dedicated server with Windows 2008 server running IIS7 but I'm a little confused on what's the most secure way to set the appropriate file settings. The thing is ...
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2answers
279 views

ModSecurity Error Entries

Recently, I was passed some error logs to take a look into, since we'd had some network spikes recently. However, I've never worked with modsecurity (I'm a programmer just doing this since we don't ...
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2answers
91 views

Unknown Directory Shortcut File or Mount | VISTA [closed]

I have this weird mount icon after a trojan cleanup days ago for a client. The icon when clicked takes you to the My Computer guid. The file properties are Type: File, Location: C:\, Size: 6.76. If we ...
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1answer
564 views

Firewall UDP Flood Dos/DDoS

Recently I have been suffering from what appears to be a UDP query flood attack. I am looking for a way to block the attack using a software firewall such as iptables, this should be possible, as ...
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2answers
16k views

Event 4625 Audit Failure NULL SID failed network logons

In 3 separate systems, the following event is being logged many times (between 30 to 4,000 times a day depending on the system) on the domain controller server: An account failed to log on. Subject: ...
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2answers
53 views

How do I drop requests from dig?

Basically I'm getting tons of request to my named/bind service, basically those requests are being rejected by named, Those are the messages i get, from tons of ips., How extacly can I drop those ...
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1answer
1k views

AWS: network ACL blocks outbound traffic

I am implementing a REST service in Amazon AWS. The internal servlets listen on numerous ports like 8080 and 9000, and an Apache configured as a reverse proxy serves them with proper URL schema using ...
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1answer
106 views

What design considerations should go into a proper Bitcoin exchange (or any other automated online trading system)? [closed]

Following the epic fiascos of the two main Bitcoin exchange sites (Mt.Gox, which went offline due to sheer traffic load during the worst market crash in the history of Bitcoins, leaving people with ...
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4answers
3k views

Exchange Security Policy and Android

How does one go about changing the Exchange security policy to allow pins and other security options on Android devices?
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1answer
194 views

TCP forwarding over SSH with socat or any other tcp forwarder, on sshd with tcp forwarding disabled

What I am trying to do is have a user that can port forward, but only to a certain host and port. I've disabled TCP forwarding over ssh for that user, and according to the manpage for sshd_config I ...
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1answer
75 views

Card Reader and Software

I am looking for a card-reader solution that includes not only the physical card-reader but a method to read/program the cards. The end goal is have to give my end users a card-reader and then an ...
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4answers
127 views

Security and Protection for Win Server 2003

Is there any Security software recommendation for Windows Server 2003 as a Web Application/Website server? Or any particular settings I should adjust before making a website to be Live.
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4answers
505 views

Removing malicious scripts

I unfortunately found today that I have a malicious script on my website. It is chmodded 644, but I cannot delete it. Directories above it would permit me to delete it normally. The interface is ...
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4answers
134 views

Preventing programmer from copying information

Is there a way to block files, coding, etc. from being copied when giving a new programmer ftp access to do research prior to submitting a quote?
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8answers
589 views

Basic questions about running a web server

I'd like to run a web server to experiment with. I'm going to to use Mongoose because it looks lightweight and simple enough to understand everything that it is doing. I have a Debian box to run it ...
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7answers
2k views

How to protect myself from promiscuous mode?

I have read that some network adapters can switch to promiscuous mode and get all the packets sent by my router. We have multiple computers here connected to the same router. They all have the WEP ...
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3answers
77 views

Letting tenants host their own data [closed]

We are developing a web app and planning to deploy it in a multi-tenant model. However, some of our potential customers are having a great deal of discomfort with the idea of not having the control ...
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2answers
190 views

Is this script nefarious?

This is sitting in my web site's cgi-bin. Should I be concerned about it? #!/usr/bin/perl print <<HTML; Content-type: text/html <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 ...
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4answers
314 views

New system administrator - Any security suggestions? [closed]

We hired a new system administrator and this will be the first time delegating this sensitive task to a third person. He's a good guy but we are still wondering about security. What do you recommend ...
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4answers
3k views

What Linux server distro is best for a dedicated webserver and a file server? [closed]

I just wanted to know which Linux server distro is most compatible/stable for a dedicated Web Server and a separate dedicated File server. And also please suggest me for a file server what would be ...
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4answers
339 views

Security policy: servers without root/administrator password

I am considering running public web and application servers with blank root/Administrator passwords, and I'm wondering whether this might be a bad policy. I see several advantages of having no ...
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5answers
336 views

Is blocking all traffic to MySql port, EXCEPT from own server IP, a good security measure?

As the title says, would this help? Imagine a classifieds website, where users simply login, logout, post classifieds, delete classifieds etc... All with PHP and mysql. I have my own server, with ...
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7answers
351 views

Can databases alone host a hack?

I was hacked recently. The hack seems to redirect any site on my server to a fake virus site. So I deleted all my website files and the hack seemed to go away. About a week later, it's back -- the ...
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2answers
4k views

Managing /tmp and /var/tmp, and why not globally writeable?

Ive been trying to lock some security vulnerabilities at my server, and I got to the point of the tmp folders. Both of them will store files that are used by other resources, still, reading a little ...
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3answers
148 views

Can an attacker remotely abuse a Windows 2008 server if he knows the username/password of a user included into “Users” group only?

There's a Windows 2008 server where there's a local user account with a known password - let it be user "dummy" and password "dummy1". That local user only belongs to "Users" group. The attacker has ...
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2answers
113 views

last night, my server was doing something intensive with the hard drive

I have an ubuntu server running in my bedroom. It's connected to the internet. Last night, at 5am, it was doing some intensive i/o with the hard drive (I heard it) for like 20 minutes. I don't have ...
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4answers
1k views

Unexpected requests from an IP in San Antonio.. should I worry?

I've noticed on my server log that I receive unexpected requests from an IP in San Antonio. Is this spam ? They visit phpMyAdmin, admin.. etc is this spam ? 184.106.130.137 184.106.149.110 - ...
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2answers
456 views

One-App SSH Logins using login shell?

I want to run an application on a Linux machine which will be accessed by most users using PuTTY. I want to start that app and, when it's done, I want it to end the SSH session. Is it ...
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3answers
1k views

Why do we really need apache + php if php can run as web server?

A few months ago i did an experiment that kinda went out very well, today we have an intranet portal using the following technologies: JeasyUI phpgrid Kibana So, based on our tests why do we need ...
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1answer
600 views

I think my server was hacked - how do i know what has been changed? [duplicate]

I have read the following posts which didn't answered my questions: - My linux server was hacked. How do I find out how and when it was done? - How do I know if my Linux server has been hacked? - and ...
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3answers
604 views

Have I just been under attack?

I have set up my Debian server on HP ProLiant 360 G4 yesterday. I started off with minimum services, running only SSH and Apache, all on standard ports with default configurations. About an hour ago, ...
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2answers
6k views

Allow any arguments for a given command with sudo [closed]

I have the following sudo config entry which I added via sudo visudo: mark ALL = NOPASSWD: /usr/bin/lxc-ls* I can run lxc-ls with my user fine but I can't append any parameters without it demanding ...
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4answers
77 views

Detecting if a page has been requested more than a specified no. of times by the same IP and blocking the IP

I'm trying to detect bad bot activity. If the information.php, which is disallowed in robots.txt but is open for normal users, has been requested more than 500 times in a day by same IP address, I'd ...
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2answers
453 views

What is the risk of opening network port?

What can someone do if i write a program to open a TCP port and run, lets say an echo server? Can some one access data on my system? or any other risk of opening port?
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4answers
4k views

how to protect telnet access to smtp port 25?

Please consider the following: 192-168-1-106:~ michael$ telnet <remote_server_ip> 25 Trying <remote_server_ip>... Connected to li*****.linode.com. Escape character is '^]'. 220 ...
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2answers
360 views

Linux - Block ssh users from accessing other machines on the network

I have set up a virtual machine on my network for uni project development. I have 6 team members and I don't want them to SSH in and start sniffing my network traffic. I already have set the firewall ...
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3answers
95 views

What is the rules of ports?

I mean the port to connecting.. just like SSH port, nginx port, etc. Im not clear about the port. So far I can see port running not more than 5 characters (port xxxxx). So, when choosing port ...
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4answers
3k views

What firewall rules should be used for a home based system [closed]

I'm just setting up a home wireless network with connection to the internet. The router has settings to configure the firewall rules. Currently it's set to INBOUND ALL ANY and OUTBOUND ALL ANY. ...
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4answers
1k views

Permissions set to 555. How can another user modify the files? [duplicate]

I run an Ubuntu 12.04 x64 VPS with Vesta, and a site in PHP. It has been hacked several times with injected code that looks like this: <?php ...
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5answers
749 views

Should I change the SSH port to < 1024? [duplicate]

Many server configuration guides recommend that the SSH port should be changed to something > 1024, for obscurity and to avoid conflicts. This is interesting, because it recommends using a port < ...
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3answers
110 views

Company server setup - security and ssh

I currently manage a server at RackSpace for my company, and am planing on switching to Linode in the next month or so, for a better server and to save some money. In the process of switching, I am ...
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3answers
91 views

What could be using an HTTP request method of “-”

Got an apache log entry that looks like this, actually I have a bunch of them spread out over time. XXX.XXX.XXX.XXX - - [27/Apr/2012:14:39:52 -0500] "-" 408 - "-" "-" It wasn't a GET or POST, the ...
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4answers
143 views

SSH: what is the best way to achieve secure connection with dynamic IP?

I'd like to have my own distant server, and to connect to it through SSH. But I'd like to do it through many PCs (i.e. many different IPs), do you have any advice / secure solution for doing this?