Concerned About Windows VPS Security
Jul 1, 2008
I was in a shared hosting environment for 2 years. Due to performance problems with website I have moved to a windows VPS with plesk 8 control panel. All of a sudden I am very much worried about my site's security. How vulnarable and volatile is ones security in a windows vps environment. Is there anything I can do from plesk to tighten security of my vps so that my site cannot be hacked or can be safe from any damage.
Is there any guide or tutorial which guide me to do some settings in plesk to make my site secure.
Although i have admin access i rarely do anything but ftp and create or modify or read email and accounts.
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Jul 1, 2008
I was in a shared hosting environment for 2 years. Due to performance problems with website I have moved to a windows VPS with plesk 8 control panel. All of a sudden I am very much worried about my site's security. How vulnarable and volatile is ones security in a windows vps environment. Is there anything I can do from plesk to tighten security of my vps so that my site cannot be hacked or can be safe from any damage.
Is there any guide or tutorial which guide me to do some settings in plesk to make my site secure.
Although i have admin access i rarely do anything but ftp and create or modify or read email and accounts.
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Feb 23, 2009
I've been watching very closely the topics posted about hostchum, and I got to say im rather worried. I purchased a vps package about week and half ago.
Ealier this week I got an email saying about my vps would be moved from node2 to node1 and my login information would chnage to reflect this.
I have not uploaded any work to the vps yet because I feel it would be a waste of my time - wating for it to go down, and can you blame me?
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Jun 3, 2008
I currently have a server sitting with Provider A and another server sitting on provider B. I only recently purchased the server with provider B and planned to phase out server A. My concern is, when I ping both servers from the same location, server B's times are nearly twice server B (90+ ms versus 48ms). How big of a difference will larger ping times like this make with respect to the end user (e.g., web page loading, etc?)
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Mar 2, 2007
I'm not a windows security expert, so I'm hoping I can get some help here
I have a test server running windows 2003 server (latest updates), php5 (using isapi) and IIS 6.
I copied over a php cms and ran the install script. It is telling me that all the Directory and File Permissions it checks are writable. The thing is I have not setup the security for these directories yet. I have not added the iis user to any groups or changed anything from the default install of windows 2003. How can these directories be writable?
I went through the install anyways thinking that maybe the install script was reporting it wrong, it wasn't. It was able to create the configration file fine and it had given the iis user full control over the file. I double checked the website directory and it does not have iis listed in the security tab and the iis user does not belong to any groups except guest.
In the advance Section of the security tab for the config file of the cms it said that the iis user inherited it's security from c:. I checked c: and all directories down to configuration.php and the iis user is not listed in the security tab so I am not sure how it is inheriting anything.
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Sep 14, 2007
I am concerned about securing a windows server without the use of a hardware firewall.
I have an idea as follows:
1) have a dedicated server running linux
2) run VMware Server edition on this linux box to host the windows 2003 server.
3) use iptables etc to secure the outer linux layer (only allowing required ports through to the windows box etc)
What does everyone think - is this a potential runner? am I overdoing things?
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May 10, 2008
I've been reading these forums for a while now... a lot of very interesting and useful stuff. However, I've always been happy with the hosting of my site until recently, and have never had a pressing reason for wanting to change.
However, I recently had a four day outage to my site. The hosting company (which shall remain nameless, for now) put this down to a security problem which meant they had to take down the shared Windows server and go through all the sites on the server looking for the site that had bad code which caused the security outage. I also has problems with malicious javascript being injected into my pages prior to this.
I quote from the hosting company "Unfortunately this is a shared hosting solution and by its very nature, it means that poor code affects all sites on that web server. .... The vulnerabilities of ASP, MS-SQL and .Net are well documented." They then proceeded to try to sell me a dedicated server (which I believe will likely be too expensive for my needs).
I'm no expert on hosting, but this doesn't sound right to me. Is all Windows shared hosting afflicted with these kinds of security problems? or only when it's not set up right? I need reliability, but not absolute 100% bulletproof uptime if it comes with a dedicated server pricetag. I do need to avoid outages of a number of hours/days (!!) however
Hopefully one of the experts here can put me right I can't believe that Windows hosting security is that bad that no company can have a shared hosting product that avoids the aforementioned problems. What do you think?
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Jun 17, 2009
I would like to setup a new dedicated server with the following:
- Windows Server Standard 2008 64bit Edition
- Plesk control panel
Questions:
Anyone know of a thorough tutorial on securing/optimizing a Windows 2008 server (even with Plesk) for a shared hosting environment?
Other?'s:
Considering Plesk's rip-off pricing, any free and quality alternatives to their products?
- plesk dr.web antivirus
- acronis trueimage backup
- plesk powerpack (I guess $24.99/mo lease isn't too horrible)
I basically want to replicate a Cpanel shared/reseller hosting environment, but with Plesk since Cpanel for Windows is not yet available and been delayed forever.
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Jul 29, 2008
Unlike earlier versions of Microsoft Windows Server, the 2008 version gives you a default logon screen that is very similar to Vista. Instead of the the interactive dialog box that prompts you for a username, password, and sometimes domain, users will find a “push button” screen displaying all users with login permissions. To log into an account all the users will now need to know is the password. This makes things much easier for hackers as the only thing they will now need to guess is the password.
There are a couple of ways to resolve this problem. First, the server administrator can set the local security policy to not display the last username and disable fast user switching. Second, in the System Remote Settings dialog, the remote desktop options can be set to allow computers with Remote Desktop that support Network Level Authentication.
Since the first method is covered in a few blogs, I’ll limit myself to discussing the second method. In the latest versions of Remote Desktop Connection client (version 2.0 for Mac and the version shipped with Windows Vista), Network Level Authentication is supported. This means users must send the username and password before Windows 2008 accepts the connection. Earlier versions of RDC (like the one found in many installations of Windows XP) don’t support NLA. So technically, users will only need to supply the IP or domain name of the remote Windows server, leave the username and password blank, and interact with the logon process that is provided at connection time. Windows 2008 servers that do not have the NLA option set for remote desktop connections are vulnerable since the interactive logon screen (post-connection) is displayed to users using earlier versions of RDC.
This last point may be of significance to service providers offering Windows 2008 dedicated servers. If the server is set up with default settings, the NLA option is disabled and new users will by default be made to change passwords on first logon. Users using new versions of RDC will not be able to logon because the initial password change sequence on first logon is not compatible with NLA. The server will return an incorrect password message to the RDC client even though the user has provided the correct username and password. The only way to establish first connection is thus to use a non-NLA supporting version of RDC so that the user can establish connections without supplying credentials and then going through the password change wizard during the initial login. But as mentioned, having NLA disabled on server side is not an ideal practice at this point.
So there are a couple ways to do this. The service provider should disable the “change password on next logon” option during the user creation process and get user to manually change the password after logon. Or alternatively, assist the client/user in changing passwords through the console internally.
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Jan 24, 2014
After click webadmin its shows a security warning conform box as following on Firefox ...
Although this page is encrypted, the information you have entered is to be sent over an unencrypted connection and could easily be read by a third party.
Are you sure you want to continue sending this information?
And if click " OK" the page display " Server not found " error
[URL] ...
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Apr 4, 2008
I run a web hosting company and one of my servers is a LAMP server running CentOs 5. A user of mine has a Joomla installation running to manage his website and he has run into the following problem that I am puzzled by.
When Joomla adds a component or module to itself, or when a user uses the Joomla upload functionality, Joomla will add the new files under the user name "apache". This makes sense as it is the apache service running PHP that is actually creating the files.
However, when he FTP's into the account to modify these files, he doesn't have the appropriate permissions to do so as he doesn't have a root level login, just permissions on his home directory which is the site. Any help would be much appreciated.
Also, does anyone know how to change the owner/group of a directory and all of its sub directories in Linux without changing the actual permissions? I.e. some of the files in the folder have different permissions (0644 as apposed to 0755) than its parent but if I do a top down user/group change on the folder it will change everything in that folder to 0755.
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Oct 2, 2008
I was actually curious about this since Windows 2008 version came out.
What is the difference between Windows media services on Windows 2003 and Windows 2008?
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Jul 16, 2009
I have regarding hosting/designing my application. Users of my website upload highly sensitive files to the server. I'll use SSL but will that be enough since the files are not encrypted on the server. I tried to encrypt the files but that is adding a huge overhead.
My first question is - is it a good idea to store the files on the server rather than a database? My other question is regarding hosting; I'm thinking of building my own server and host it in a colo. Is colo more secure than dedicated hosting? Currently i'm still in the process of developing my App and my environment is Windows Server 2008/SQL Server 2005.
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Feb 9, 2007
Is there any problems with having duplicate rules in different files as I have downloaded some rules and am going to make them all into one file to give me the best protection, but this is going to take time and I really need some sort of protection now
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Aug 25, 2007
after install ConfigServer Firewall i get the following ...
ConfigServer Security & Firewall - csf v2.89 >>
PHP Check >>
Check php for register_globals >>
WARNING >> You should modify the PHP configuration (usually in /usr/local/lib/php.ini) and set:
register_globals = Off
unless it is absolutely necessary as it is seen as a significant security risk
must i modify it?or not? put in ur consideration i tried to download it to modify an error occured!
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Aug 24, 2007
I am on a shared server account with Lunar Pages basic hosting plan.
The only script file I have up running is db Masters FormM@iler. It runs on Cpanel. I deleted whatever other scripts I could find on my server. The site is just basic html pages with jpgs and a gif.
Is there much else I really need to do to secure the server or is that more in Lunar Pages' hands?
If there is still more I can do to secure the server, and is it a small amount that's easy to do or would it be wise to just hire someone else to put in a few hours making sure everything is truly set up securely?
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Apr 23, 2007
I have a vps that has been exploited, and the hosting company is giving me advise on what to do to fix the security problems, but i need a good server administrator/company to help me with this. can anyone recommend a company that will go thru my server,
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Mar 27, 2007
I'm inheriting a website that is currently a mess. It was designed in Joomla, but everything about the site by the original designer, is completely a mess. Files weren't placed in their proper directory hiearchy, the site has been hacked into a few times...basically a big headache.
I'm willing to learn and my first goal is the redesign the site. Currently, I'm looking at choosing a CMS or just rebuilding it in Joomla. The problem is that the site is a big part of the business, so any down time is not good.
I have some questions I hope you experienced folks can help me with...
Does CMS choice have any bearing on whether or not its a security vulnerability? If so, which one's are "less a target" of getting hit?
I just want to design the site from scratch and make it secure as possible from suggestions on various forums. I don't want to be a security admin, but is that what I'll end up having to do to run a site like this?
What are my options between "doing it myself" vs "hiring a third party"?
The company is right now in a tween stage. Fast growth but not enough to hire a security guy, based on my talks with the CEO. I disagree with this, but what can I do in the meantime to plug the site holes?
I'm almost wanting to go commercial so I don't have all the headaches, but the company wants to save money. What can be done in those situations?
Before I go out and spend money on books, what do you recommend I buy to start getting my feet wet in what may become a future in IT security?
This is from someone who's just inherited a dedicated server with a swiss cheese website. What is the first order of business for someone who is in the dark and will not get much support in regards to spending more money?
how do I secure my site "on my own"?
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Feb 26, 2007
I noticed that my vps had utilized 250 gig of traffic in one day [i average 5 gig per MONTH] with cpu usage of close 100%; my hosting company pinpointed one php file which had allowed an outside varibale to be placed in "include" function so that the outside php code was being run;
Is there any program/scripts that can immediately email me if cpu usage stays high
the nic card is being utilized too much memory usage exceed certain levles this way, i would know i have been hijacked in time and try to find the culprit i use knownhost with cpanel/linux mysql and php.
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Jul 21, 2007
i have an unix server [don't know what version i think it's FreeBSD ]
[url]
and i use WS_FTP to upload the files to my server.. but i have a big problem all my files are encrypted with some problems but when people use getrigh browser or some kind off program to acess my server instead of a normal browser it appears the list of files i have upload and they can download them and when i set password for images etc it's all safe, but people can't acess parts of the site without password... i want to know if there's some way of protect my file without interfering with the normal browser acess.
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Jul 24, 2007
when we run server with shared hosting. we mostly facing issue os security like c9shell scripts.. as well as ppl hacked database or changed index.html. we do enable php open base dir as well as mo security firewall we do search which user is using find command who is uploading file... but is there any other way to secure server for such hacking issue..
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Mar 26, 2007
I have run rkhunter and got message saying that /bin/dmesg [BAD]
# rpm -qf /bin/dmesg
util-linux-2.12a-16.EL4.20
# rpm -V util-linux-2.12a-16.EL4.20
.M...... /usr/bin/chsh
It looks like RPM damaged? How can I confirm it?
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Jul 10, 2007
When securing a vps system, do things like Enable Shell Fork Bomb/Memory Protection use much memory or any other secuirty measure?
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Oct 31, 2007
We have a e-commerce web site that has the latest shopping cart software ( that is known to be secure) ssl cert, etc.
We got a call today from a guy who says that he used his brand new card on our web site and that the card was stolen and used on anothoer site within hours. We have checked every file on the web site, logging into serevr root and checking everything and cant find any evidence of a hack or security breach of any kind.
can someone recommend a reliable company that can go in and check things out for us to see if they can find anny security issues, or evidence of a breach? There must be a company out there that does this sort of thing
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Apr 8, 2008
I am conducting some research into potential risks that web hosts have to deal with on a daily basis. What potential security risks are there for web hosts ? And how do they overcome these issues?
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Jun 7, 2009
For security reason I have these php functiosn disabled:
show_source, system, shell_exec, exec, popen, proc_open, procopen, passthru
Can anyone please tell me whether if it will prevent shell scripts from working?
They can still upload the shells but cant read/write/execute commands in 777 directories?
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Jul 16, 2009
I want to setup a Windows 2003 security policy to filter traffic.
I want to let most of the world through to port 80 so maybe just ban a few nuicance IP's.
But then I have a POP / IMAP server, VPN, SMTP, etc that I want to block all but UK IP addresses.
I know I can do this through the MMC snap in but this is 1000's of IP's.
Is there a way I can import a list/range of IP's that I want to block from a country IP database?
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Oct 9, 2009
I have a Linux server in which i have two NIC's one is for the LAN and other is for the Internet
[root@nebula etc]# ifconfig
eth0 inet addr:192.168.1.101 Bcast:192.168.1.255 Mask:255.255.255.0
eth1 inet addr:192.168.1.102 Bcast:192.168.1.255 Mask:255.255.255.0
How can i test security between the Internet Nic and the LAN Nic to be sure no security leaks exist.
I can only access the server remotely no GUI but can install packages.
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Mar 23, 2009
I am getting more into it and looking for the best way to harden it and secure it. Also some information about what processes to turn off and how to better setup my IP Tables.
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Apr 24, 2009
So I've been using WHMCS for a while, and there's something I'm a little concerned about with the whole keeping customers credit cards for recurring payments.
I've downloaded a backup copy of the database and I see that the passwords and credit card information is encrypted. That's all nice and handy but the CC hash is also stored right in the configuration file. That means that if someone gains access to the server and just grabs the database + config file they would then be able to view all that info correct? Maybe someone who knows a little more about WHMCS can tell me if this is correct or not?
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Apr 20, 2009
I'm running CSF on a Cpanel server and have questions about new features in CSF
Apache Check
Check Apache weak SSL/TLS Ciphers (SSLCipherSuite)
Results
Cipher list []. Due to weaknesses in the SSLv2 cipher you should disable SSLv2 in WHM > Apache Configuration > Global Configuration > SSLCipherSuite > Add -SSLv2 to SSLCipherSuite and/or remove +SSLv2. Do not forget to Save AND then Rebuild Configuration and Restart Apache, otherwise the changes will not take effect in httpd.conf
Can someone explain this in laymen terms? I know this is new in Cpanel. I'm already running Apache 2.2, PHP 5.2.9 with suPHP enabled and mod_security as well (these rules: [url]
Also, what exactly are these CSF checks?
Check csf PT_SKIP_HTTP option
This option disables checking of processes running under apache and can limit false-positives but may then miss running exploits
Check csf SAFECHAINUPDATE option
This option closes a window of opportunity that opens when dynamic chain updates occur
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