i have vps and i enable the safe_mode , but now i need to turn it off becouse i need to install image uploader script and this script need safe mode off to work
so,
what can i do to secure my server while i turn off my safe mode?
what can happend if i turn off safe mode?
what is the job of safe mode?
what are the most important issues for secure php.ini file like when you turn your SAFE_MODE ON or OFF?
or please who every read this topic to post his important disable_functions in php.ini ... and if some functions disable to post it ...
let's make this subject for the most important issues for secure your php.ini
from script-kids as we can ...
here i have some important question's for anyone has or controlling a server ; vps ....
#0x01 ; what the most important disable_functions for the php.ini?
#0x02 ; is the safe_mode should be enabled? or disable? and this depend on what exacly?
#0x03 ; what the functions or any trick to control the nobody ( attacker on the server or shell ) FROOZ .... didn't move ? or make any command in the server ...
#0x04 ; i saw in some secure server ( as they say ) they changed the Server : discribe to them name[s] like
Server : SECURE BY US .COM OR SECURE SERVER ..
uname -a : Linux secure.secure.com 2.6.9-023stab040.1 #1 Mon Jan 15 23:24:32 MSK 2007 i686 athlon i386 GNU/Linux
sysctl : linux 2.6.9-023stab040.1
Server : SECURE BY US ! < [THIS WHAT I MEAN HOW COULD WE CHANGE IT IN PHP.ini ?]
id : uid=99(nobody) gid=99(nobody) groups=99(nobody) <[how can we cannot make this nobody to have the host id ! everyhost in the server should have his own name and php.ini ?]
pwd : /home/host/public_html/
#0x05 ; how can we hide the uname -a on the shell [ the attacker upload it to our customer site !]
#0x06 ; how can we hide the sysctl to view to anyone like [ attacker ] ...
#0x07 ; how can we rewrite on he Server Type the display for our secure message?Server : SECURE BY US !
#0x08 ; how can we give evey site and customer his php.ini file in his public_html? and how can we give him [ JUST HIS PERMISSION TO HIS SITES FOLDER AND NOT OTHER PATHS AND PERMISSION!]
these question every one had a server ; vps , need to know and secure his box from other ...
and anyone would like to publish any new [secure or not] idea please let us know what you would like to say ....
What is the best option in the php setting does keeping the php function safe mode on or off?
View 12 Replies View Relatedi need to enable php safe mode on for my joomla and i came across this
Quote:
When the php safe mode is turned off globally by default at our server end, you can still override the setting to turn it ON for only your domain by just insert the following line inside the ".htaccess" file (at Linux server):
Code:
php_value safe_mode "1"
my joomla .htaccess file:
Quote:
##
# @version $Id: htaccess.txt 10492 2008-07-02 06:38:28Z ircmaxell $
# @package Joomla
# @copyright Copyright (C) 2005 - 2008 Open Source Matters. All rights reserved.
# @license http://www.gnu.org/copyleft/gpl.html GNU/GPL
# Joomla! is Free Software
##
#####################################################
# READ THIS COMPLETELY IF YOU CHOOSE TO USE THIS FILE
#
# The line just below this section: 'Options +FollowSymLinks' may cause problems
# with some server configurations. It is required for use of mod_rewrite, but may already
# be set by your server administrator in a way that dissallows changing it in
# your .htaccess file. If using it causes your server to error out, comment it out (add # to
# beginning of line), reload your site in your browser and test your sef url's. If they work,
# it has been set by your server administrator and you do not need it set here.
#
#####################################################
## Can be commented out if causes errors, see notes above.
Options +FollowSymLinks
#
# mod_rewrite in use
RewriteEngine On
########## Begin - Rewrite rules to block out some common exploits
## If you experience problems on your site block out the operations listed below
## This attempts to block the most common type of exploit `attempts` to Joomla!
#
# Block out any script trying to set a mosConfig value through the URL
RewriteCond %{QUERY_STRING} mosConfig_[a-zA-Z_]{1,21}(=|\%3D) [OR]
# Block out any script trying to base64_encode crap to send via URL
RewriteCond %{QUERY_STRING} base64_encode.*(.*) [OR]
# Block out any script that includes a <script> tag in URL
RewriteCond %{QUERY_STRING} (<|%3C).*script.*(>|%3E) [NC,OR]
# Block out any script trying to set a PHP GLOBALS variable via URL
RewriteCond %{QUERY_STRING} GLOBALS(=|[|\%[0-9A-Z]{0,2}) [OR]
# Block out any script trying to modify a _REQUEST variable via URL
RewriteCond %{QUERY_STRING} _REQUEST(=|[|\%[0-9A-Z]{0,2})
# Send all blocked request to homepage with 403 Forbidden error!
RewriteRule ^(.*)$ index.php [F,L]
#
########## End - Rewrite rules to block out some common exploits
I have a script that needs safe mode off to run, the script writers have said safe mode is disabled as default and not required and even disabled in php 6
Now I'm not to fimular with Safe mode, all I know is most scripts are wrote to work with this on
Should i switch safe mode on or off . Right now i am using it as on some one told me if i switch it off then server can easily hack but becoz i switch it on im having too much problem specially users of sites having problem of uploading and wordpress also have issue and some more script what you say what should i do?
View 9 Replies View Relatedhow can i make "safe mode on/off" using .htaccess?( in SharedHosting )
View 1 Replies View RelatedI would like to know as to whether or not you have php safe mode turned on? If you do, please specify why, and would you allow your clients to turn it off?
View 13 Replies View RelatedI searched but couldn't find much - should you run PHP with safe mode on or off on a shared (Linux) server?
View 3 Replies View Relatedi have a cpanel server.. can any one tell me how to allow safe mode to a specific domain?
View 1 Replies View RelatedI am going to run a free host, yes I know I should post this in FWHT but well, they dont answer very fast if at all.
It is very dangerous to have Safe Mode OFF on a free host, but someone was telling me about open_basedir, which makes it so they cant touch any files set outside of open_basedir. Would this be suffiecient to keep them from touching others files? I know I need to disable other functions like exec() and stuff but would open_basedir keep hackers away from others files and hacking them...
To Install www.awbs.com scripts to my server
How Can I Do This Following to one site on My server
safe_mode Off
allow_url_fopen On
session.auto_start Off
tell Me that i can do that from httpd config
I have found on one webhost that they have very cool feature:
Here is what they say:
Quote:
Browsing through any webhost related forum will reveal that giving safe mode off poses extreme security risk to the server. Because it offers hackers a great advantage to access any other members account or read their sensitive files which usually contain passwords.
But then some genuine scripts won't work with safe mode ON. Meaning you could turn it on per member requests but that takes lots of labor.
So we completely reprogrammed the safe mode PHP source code and recompiled it. As a result ours safe mode OFF is light-years safer & hacker-proof then standard PHP v5 safe mode ON.
So all our members are getting safe mode OFF, with harder security then those hosts who offer Safe Mode ON.
So now I am wondering, how they did that? I have searched forums and Google for lots of different keyword but haven't found anything.
I believe a lot of you running Apache as nobody and having php save mode OFF. It there any way you protect yourself? phpsuexec is not a solution now as it increasing load.
I've recently upgraded from Shared hosting to a VPS. I'm currently getting my new VPS setup before migrating my site over. On my shared server, both the global and local safe_mode directives were reported as off by php_infO(). On ym new server, the global is reported as off, but local is reported as on.
On my old server, the PHP was version 4.4.9 running as a CGI. On my new server, PHP 5.1.6 is running as an Apache 2.0 Handler.
I have already set safe_mode to off in my global php.ini file (hence why global is reported by off). However, I have no local php.ini files, htaccess files, or php directive settings in place, so I cannot figure out why local is set to on!
I've tried editing httpd.conf to include "php_admin_flag safe_mode Off", though I'm not certain I put it in the right place. There is only one website on this server.
With the CGI php on my old server, I was able to create a local php.ini file to overwrite global directives, but that seems to have no effect with the Apache Handler on my new server.
I decided to apply PHP safe mode to my servers, considering:
- I cannot prohibit using exec functions (some binary uses are needed, like host, mysqldump, etc..)
- I cannot restrict at all via UID/GID method at bins due to several problems..
Safe mode is the final sollution, as I only need "safe_mode_exec_dir" config to set a folder with the necesary binaries... this will stop nobody user (Apache) to exec whatever it wants, like perl, binaries uploaded to an public insecure folder (exploits), or anything else... people only could exec() the binaries I want and where I want. This will stop finally 95% of my hack problems.
Well. The problem is safe_mode is enabled or not, but you cannot set o disable certain features of this safe mode, like UID/GID checks (*******!)...
I am trying to configure so only "safe_mode_exec_dir" would apply, so:
- Including UIDs checks disabled by:
safe_mode_include_dir = "/home/"
(tested)
- Some variables set to NULL, as safe_mode_allowed_env_vars or safe_mode_protected_env_vars...
- safe_mode_exec_dir = "/usr/phpbin/"
Great! with symbolic lynks in... the best sollution available for me.
- open_basedir = "/home/"
(for fopen, etc...)
Ok ok.. but problems there.. by example this one:
Quote:
Warning: fopen() [function.fopen]: SAFE MODE Restriction in effect. The script whose uid is 32015 is not allowed to access cache/dynamic_fields/modules.php owned by uid 99 in /home/yyyyyyyyy/public_html/chn/modules/DynamicFields/DynamicField.php on line 823
Great.. fopen is under UID/GID checks, but it is not an include, so safe_mode_include_dir would not apply...
Now fopen, link, unlink, etc.. functions are UID restricted and this seems to be impossible to disable.... pffffffff...
can you share your safe_mode configs or sollutions for this problem?
I want to buy a billing software, but I am a bit scared about having all my clients in mysql on the server. How safe is it? Can hackers steal my data? Till now I had clients data stored on my PC.
View 2 Replies View Relatedi have question about securety of our DNS Server.
View 8 Replies View RelatedMy server hacked!
my server hacked for tow time in less than one month (both times they were similar to each other), and my previous securing company work on my server in previous hack but the server hack again!
anybody can work on my server? this is very URGENT because my server and all of our sites are down!
so while we all obsess over hardening our servers against sophisticated hacking attempts, how many of us consider the security of our own host's control panel?
Just today i'd forgotten my login for my host's helpdesk. I couldn't find their password recovery form, so i opened their public support chat and asked support for a link to their password recovery form. Apparently they didn't have a password recovery form. Here is the chat transcript:
Support: Hello
Tom: Hi, where is your password recovery form for the helpdesk?
Support: How may i help you?
Tom: Did you see my message?
Support: Yes
Support: Let me know your email address
Tom: [REMOVED]
Support: Okay Let me check
Support: Your new password is [REMOVED]
So, the only think really stopping someone from logging into my helpdesk and posting a server cancellation ticket is a little bit of research to find my email address and a traceroute to find my host.
I see that one of the most important things nowadays is the security of our servers.
I would like to know from people here that are running big and small servers what they have done to secure their servers. What tips, what softwares they have used, which applications using and are more secure than others.. generally everything that could make good in the protection and security of our servers.
Even if you asked helped from a company doing that work, what changes they have done to your servers? which options they changed?
I am making this thread so as to collect all info we know in one place.. One knows about that tip.. the other one knows another tip.. having all of them somewhere could make a tremendous difference..
Moderators please dont move that thread in any software discussion or other forum as this is one of the most active ones and also has instant relation with the dedicated servers we buy.
I have a friend that works in the IT. He is about to start his own business, something in the line of network connection or something like that. I was telling him that I'm planning on getting my own dedicated server but that I have no idea how to secure the server. He told me that most linux desitributions come with their own build in firewall and that I don't need to worry about security. He told me to just ask my dedicated server provider to make sure the firewall is enabled and that's it. When he told me that I thought to myself, either this guy has no idea what he's talking about, or those guys at Webhostingtalk have no idea what they are talking about!
View 14 Replies View RelatedWhich is the best company to secure my web server?
View 8 Replies View RelatedIs anyone have a ebook or article about secure linux server and apache .
I want to secure own server and my vps customer
my linux system : Centos
also i have cpanel control panel
i want to secure my server that scanner tools can not scan my site . because of one of my site is very important to do not scan of folder.
my server os : linux Centos 5
I have a unmanaged server, and i want to have it secure harden.. how do i do it?
View 5 Replies View RelatedI would like to know if it's possible to secure a server used only for streaming.
Here is what I have on my server :
- Gentoo,
- FlashMedia Server,
- and the following services are enabled : ftp, ssh, named and web ssl
Is it possible for instance to install Mod_security?
I came across this very detailed step-by-step tutorial on how to secure a Plesk based VPS. It's up-to-date and was just written so the info is accurate.
Here's the link to the full tutorial: ...
I have a cPanel dedicated server and have a lot of spam attacks on this server. It's getting so bad that our IP is being added to Yahoo & AOL blacklists and my emails are bouncing to these accounts.
Is there anyone on here who can do a thourough check on our server and install anything necessary to stop this kind of activity?
For hosting irc and shells i heard that the best choice for OS is the FreeBSD..
I would like to know if there are any toturials or if someone can write one.. (or give some tips) of how can i secure a machine running FreeBSD and used for irc + shells!
For example how can i install a firewall, a rootkit etc etc..
Also what about putting users at jail? (not allowing them see other dirs except theirs) how can i do that?
Also what about dont allow users use some commands like dmesg, ping, traceroute, and also how can i make them when they do ps -aux to only see their processes (to not be able see the other processes from other users..)