Security is not a product, but a process.

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5k views

nginx restrict directory access

I have a Wordpress site running on nginx. What is the best way to restrict access to /wp-admin using nginx? Thanks
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6answers
107 views

Combining IntrAnet and HTTPS, is it useful?

I have a web server which supports only the company's Intr*a*net, not the external Int*er*net. There will be about 100 different users who will connect to a web application on this server and they ...
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4answers
3k views

Securing Guest Wireless Network

I need to setup a guest wireless network at the office for visitors to connect to. What are your recommendations in terms of how to secure it without putting too much of a support burden on myself? ...
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3answers
20k views

How to automatically set IE settings for all users?

I need to alter some settings on Internet Explorer (version 7, but potentially some users may still have version 6). Doing this manually is fine, change settings, restart IE, done. However, we have ...
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3answers
114 views

Monitor communication to outside the network

I work at a place where they have access to very sensitive data and think a lot about security. I dont want to ask bc they may lie, is there software to monitor data such as email (pop/imap AND ...
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2answers
4k views

How to disable anonymous access on LDAP

I need to secure my LDAP server and am not quite sure the best way to go about it. I am running Debian "Lenny", and using OpenLDAP (slapd). I notice that if I run: ldapsearch -x -W -b ...
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6answers
4k views

software version of the RSA SecurID?

Is there a software version of the securID fob below: I remember reading that the algorithm for the key generation had been broken & that there was a software utility available, where if you ...
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3answers
60 views

Security concerns with enabling PowerShell on a production server [closed]

I work in the software development side of an ISV. We're thinking of using PowerShell for some utilities in and around the core application (which itself is ASP.NET). One of my colleagues said to me ...
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2answers
546 views

Arp attack on my network

We have a small network of around 100 laptop/desktops and around 20 servers (sounds an overkill but these servers provide service for all our external contractors too) and we have recently noticed ...
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2answers
82 views

Does the server SSL certificate need to be kept private?

I understand that private key definitely does, but what about the certificate file? I also understand that the server sends (part of?) the certificate to a connecting client, but does it send the ...
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2answers
44 views

How can I sync servers configurations

I'm looking for a way for 1 server lcoated in Switzerland (acting as a web/db server) to share/sync files like deny.hosts and iptables rules to my other server (dns/mail) located in North America in a ...
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3answers
198 views

Is it a good idea to only allows connections to be established in the LAN->DMZ direction?

I'm trying to setup the usual thing, with a DMZ containing servers that can be accessed from the internet, and a LAN that should be as secure as possible. I happen to also have total freedom on the ...
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1answer
142 views

Is the following setuid program a security risk?

I have the following program in .c set as setuid chmod only read/execute by owner and will set it immutable, as i will the php script it invokes. #include <stdio.h> #include <stdlib.h> ...
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2answers
1k views

Trying to set up virtual hosts to block access by IP, for three domains and when using SSL on one domain

So I want all this on one server: - 3 domains / websites - SSL on one of them - nothing to be accessed by an IP address (e.g. 'domain.com' is okay, but not by just typing '123.55.44.123' into the ...
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3answers
236 views

VPS security considerations when only accessing from one IP [duplicate]

I'm running an VPS where I have deployed some projects. As I am the only person who accesses the server and I furthermore have a fixed IP i decided to configure iptables so that server access is only ...
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2answers
210 views

Webhosting on virtual sever vs physical server: Security vulnerability

In comparison to a physical server, is there any special security vulnerability in virtual servers for purpose of hosting several websites? For example, can the fact that there is not any hardware ...
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2answers
113 views

How do you restrict access to a server to be from a single machine (which doesn't have a dedicated IP)?

We want to deploy a J2EE WAR file from a build server to an application server (running JBoss 7.1.1) using the JBoss management console. Each machine is located on a different network. On the build ...
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2answers
354 views

What is the best way to configure Postfix to send mail only on a production server?

I'm digging the web around to find the best way to configure Postfix. I don't want to install a full Postfix server, the only thing I want is to send mail with the PHP mail(). I know this can be ...
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3answers
2k views

Block incoming traffic to specific computer

I have a router that is connected to the internet. To that router we connect via LAN and WAN. WAN settings are up, router user/pass, router access is secured with WPA/WPA-2. I want to make some ...
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2answers
105 views

Why would a URL ending in .com be a security threat? [closed]

I have a WordPress website hosted on Pagely. When I searched for a string ending in .com, it triggered a security threat warning and my site was blocked. I raised an issue, but I got the following ...
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1answer
135 views

How to connect to a SINGLE colocated server - is StrongSWAN sufficient?

I am thinking of colocating a SuperMicro 1022G-URF (16-way 1u server, 16 GB RAM) at a "place that does server colocation. I am running CentOS 6. The server will be a web server and an email server ...
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4answers
656 views

Disable CentOS users from everything but samba use.

I have a storage server running some samba shares. I need to create multiple users for each individual working at my company, but I only want them to be able to access samba from the client machines. ...
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2answers
127 views

Scan POP3 mail accounts for suspicious activity

Is there a way to scan POP3 e-mails for certain domains / keywords assuming user/passwords are known? Our company would like the ability to know if suspicious e-mails are being sent, such as e-mails ...
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1answer
2k views

Anti-Malware Antivirus for Linux Web Server? [closed]

Does anyone have experience running anti-virus software on a Linux web server, especially CentOS, and what do you recommend? I'm interested in putting it on a web server we have as one more method ...
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2answers
108 views

Immortal application

(TL;DR: last paragraph) I'm running an online service and have thusfar been doing offline backups and simple monitoring to achieve resilience and availability. Resilience is rather manual but I'm ...
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2answers
280 views

Active directory auth to comprimised machine?

Let's say that I have a machine on my domain that has been compromised by an unknown attacker. If I use my domain credentials to log into that machine remotely, via RDP, does that expose my ...
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2answers
362 views

Possible DNS Injection and/or SSL hijack?

So if I go to my site without indicating the protocol, I'm taken to: http://example.org/test.php But if I go directly to: https://example.org/test.php I get a 404 back. If I go to just: ...
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3answers
91 views

Restricting access to a video file on the network

I have an MP4 file on our Windows 2008R2 fileserver that I want people to be able to view, but not to create copies of. Is there a security permission configuration that would allow this?
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1answer
183 views

Is this considered 2 Factor Authentication?

Trying to create a 2 Factor Authentication for users to access data remotely. Here my scenario: We have a Watchguard to VPN into the network - If we use it's internal DB to store authentication ...
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2answers
315 views

www-data user can read /etc/fstab

I'm pretty new at this. So I figured out that apache2 starts processes as www-data user. Suppose this user then starts untrusted code. What if I wanted to disallow this user to read any files (like ...
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2answers
1k views

Worried that my webserver has been hacked (or compromised) with redirects to 'guide-securesoft.ru' [duplicate]

Possible Duplicate: My server's been hacked EMERGENCY So I am very panicked. I have a Rails application I am building hosted on a VPS for a staging environment. I configured it ...
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1answer
92 views

Utility that sends an email when usb is unplugged [closed]

I work for large university's IT department. We manage around 500 computers in remote labs around campus and residents halls. As an on going project, we are increasing secruty in our labs through ...
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2answers
418 views

Opening common ports - does it make a network more vulnerable/susceptible to attack?

Our network admins/security admin make the case that we should keep common (external facing) ports (FTP, XMPP, IMAP, IPSEC) closed as it is a greater security risk and makes us more susceptible to ...
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3answers
292 views

Which steps to take to protect java server from cpu overload?

I've written a java server application for a software solution I'm fiddling with. The server uses multithreading to handle sockets and postgresql as a database. I'm worried about potential ...
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2answers
81 views

Security track record of unix programs [closed]

I'm looking for a database with all the noteworthy unix programs with a timeline of vulnerabilities found in that individual product in some categories (remote/local, DoS, privilege elevation, data ...
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1answer
278 views

allow a user to run command as another user without any password prompt

I'm trying to achieve same result as the answer from that existing SF question without having to enter the password for the original user, that is, I'm userA, and I want to be able to run a command as ...
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3answers
70 views

Securing data sent to an unencrypted WiFi AP

The business plan of a project I'm involved in assumes selling certain WiFi-enabled devices to end users. All these devices originally have an unencrypted connection and a standard SSID. The problem ...
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2answers
224 views

force use of specific passwords

We are migrating Active Directory from from Windows Server 2003 to 2008 shortly. With 2008 we would like to be able to use a separate password policy for a particular group of PCs. One suggested ...
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2answers
112 views

ssh - keys and password

I've gotten keys (certificates) working correctly, but as it is, it's more of a "convenience" thing. (which I love). But as far as security, someone can still use a password to login. What's a good ...
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1answer
137 views

Protect against silent1.pl Perl Script

I operate a small shared hosting area. While I notice that people are unable/struggle to exploit with PHP I have found a small minority of people using Perl in order to obtain server information. So, ...
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1answer
171 views

Questions about Domain controllers [closed]

I'm starting to work on a security project which includes setting up a domain controller for my company. I have a few questions: Do I need a proxy when having a domain controller on the network? ...
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4answers
1k views

Check for backdoors in PHP scripts

My shared host got hacked and I need to check my PHP scripts for backdoors. I'm on a dedicated server now so I can use SSH to run scripts. Are there any good scripts out there to do this task?
0
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3answers
120 views

Is there a way to tell if there is key stroke logging software installed? [closed]

I have a Windows-XP machine as my desktop system at work. Is there any way to tell if there is keystroke logging software running on my system or any other software that may be monitoring my system ...
0
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3answers
140 views

Where would I go to learn to make a really, really secure system that DOES expose external services (out of a standard Windows or Linux OS)

Where would I go to learn to set up a really, really secure system that DOES expose external services (out of a standard Windows or Linux OS). Note that I am not looking for a favorite choice between ...
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3answers
489 views

logwatch explanation

Could anyone please explain what the various parts of the following LogWatch mean: --------------------- IMAP Begin ------------------------ [IMAPd] Logout stats: ==================== User | ...
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2answers
291 views

Why isn't this .htaccess file working?

Recently, my website was hammered with thousands of POST requests from various bots. Instead of taking the approach of blocking these bots based on their user agent, I've decided to find a way to ...
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2answers
221 views

Mysql remote encryption

I'm using a remote connection to mysql. Both the webserver and the server with mysql on it will use internal ip addresses to connect. 1) Is encrypting necessary? 2) Is their a built in / simple way ...
0
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1answer
153 views

Windows file sharing for only 1 NIC

Our Windows 2008 servers are at a Data Center. Both have 2 network cards. One card is connected to the switch that connects to the Internet the other is connected to a switch that serves only our ...
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4answers
53 views

Is there any application for handling groups and members on Linux?

I have a Linux production server. There are no simple codes for viewing groups, members, how many groups one member is part of etc etc. Is there any good and secure application for this? Thanks
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3answers
273 views

May the file size returned by stat be compromised?

I want to make sure that nobody changed a file. In order to accomplish that, I want not only to check MD5 sum of the file, but also check its size, since as far as I understand this additional simple ...