I had two continues attack on our server(web hosting capnel)...The attacker is deleting one users public_html content so that he is losing his contents.. Actually all files are with owner as him. But I don't know what's happening? is it a good idea to use some IDS on server..would it be a overhead for server?
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i use Linux centOS5 for server in which a drive is shared on windows users by which they can create,delete and modify the folder and files, means they have full access. i want that a drive is share in which they will create files and folder on them but not delete and modify them how to set permission and share that drive on windows users so that my problem will solved
View 1 Replies View RelatedI configured OpenLdap and now I want to configure it using TLS-SSL
But I cannot get it working with the Linux clients. Environment: Centos 5.5
Openldap Server configuration:
I have just configured Centos 5.5 LocalMailServer with fetchmail and sendmail , Proxy with Squid and FileServer with samba. Now my concern is security.. How can i protect my server with outside attack. Will I need to block some ports or I need special tools or script so no one from outside can attack my machine. My machine is working on intranet with local ip only.. No web server or static ip exists. Machine is connected with ADSL router to access internet.
View 5 Replies View RelatedI just put the latest updates onto My CentOS 5.6 server. It started life as a 5.4 Server, then the upgrades took it to 5.6.
The latest updates did a Kernel Update and the server sent me two messages : -
-----BEGIN MESSAGE-----
[2011-06-08T12:37:17+0200] centos54.xxx.yyyyy.com
ALERT : [2011-06-08T12:37:17+0200] msg=<START>, program=<Samhain>, userid=<0>, path=</etc/samhainrc>, hash=<256A548F71A768CC1E054F0C1E90E8674D36A09BDF9E5D13>, path=</var/lib/samhain/samhain_file>,
[Code]....
I am trying to wade through the semanage jungle to get permissions for a tftp client. I followed the HowTos [URL] but I get the following at the client:
tftp> status
Connected to 192.168.1.101.
Mode: netascii Verbose: off Tracing: off
Rexmt-interval: 5 seconds, Max-timeout: 25 seconds
tftp> get hello.o4
tftp: hello.o4: Permission denied
I finally figured out that the firewall directives shown at the end of the HowTo refer to semanage although the options are stated incorrectly according to the man page for semanage. I did insure that the file hello.o4 in /tftpboot has read permission for everybody.
We are trying to define an appliance based on Suse for an application server and Web server Apache, so we would like to know configuration best practices for network and security, is there any paper/doc about best practices?
View 3 Replies View RelatedI have a Cent OS dedicated server, not sure what version though as I'm new to Linux. How do I find out what version I have? Is there an anti virus or security package that I can install on my server which can use Cron Jobs to do a scan every 12 hours.
View 7 Replies View RelatedIs it possible to list/find/compare the program versions on a Centos system, against Redhat/Centos Errata/Security/Bug lists? Sort of looking for a way to make sure that all the packages on a system are ok, and not a security risk-- Without having to update every package. A pseudo code, in my mind is:
[Code]...
I'm concerned about security of having a LAMP server on my laptop as having any server makes the system less secure. However, if I were to create a new partition and install a lamp server on that and only use it when offline, would the security of my main partition be affected at all?
View 3 Replies View RelatedI've recently been running a game server from my desktop, as well as a web page to accompany it.I use the ports 80/8123(HTTP)/5900(VNC)/50500(GAME)/5839(ADMINISTRATION).What's the best solution to protect my server from security threats? On a side note, I plan on adding a MySQL server later, but I want to keep it local only.
View 9 Replies View RelatedI'm new to server admin, so my question is based on what may be a bad assumption. With a server, my assumption is "if it ain't broke, don't fix it". In other words, I'm not really interested in upgrading the software to the latest and greatest if I already have stuff working on the server.
However, the one place where I DO want to constantly have upgrades is for security patches. How do I apply security updates to Ubuntu Server... and ONLY security updates?
I followed this how to to make a NFS server: [url]
So it means: exports looks like this:
Quote:
Here are some quick examples of what you could add to your /etc/exports
For Full Read Write Permissions allowing any computer from 192.168.1.1 through 192.168.1.255
It means that if sbdy arrives with a linux machine, puts the ethernet cable into the router, then logs as root on his machine, and mount the exports. He can do almost everythg, with permissions chmod'ing ...
Is that LAMP, or i am wrong for nfs kernel servers, the ultimate users/password servers against that to prevent those physical approches /logins?is there good how to ?
I want to know how can I test my server security with hping3 tool I want to make a virtual DoS or DDoS or SYNK attack in my LAN to test my server security and ability against these attack .Is hping3 a good solution for this or not if yes how can I do this which option of this can make such these attacks?
View 4 Replies View RelatedI have a problem with compiling of mod_ruby-1.3.0 After a succesfull configure i get a error in the make, it say "make: *** [apachelib.o] error 1" . Here below you can find the results of de configuring and the make.I was following the roles in Howtoforge " The perfect server - Centos 5.3" everything goes perfect till mod_ruby-1.3.0
./configure.rb --with-apr-includes=/usr/include/apr-1
checking for a BSD compatible install... /usr/bin/install -c
checking whether we are using gcc... yes
[code]....
is it possible to join Windows Server 2003 to CentOS 5 Cluster?
View 1 Replies View Relatedwhen I reboot the server with centos 5.5 the SMB deamon doesn't start?
View 2 Replies View Relatedand what is the diffrent. i now about the server only use command and desktop use both so. am trying to host some sites which one will you recomend.
View 5 Replies View RelatedDuring the install of my Centos server 5.3 i cam in trouble after setting the Static IP address, Gateway and DNS i cannot connect to the internet my own network is visable. When i start ifconfig my network is running.
View 7 Replies View RelatedI wish a easy server with CentOS. I need only: ssh, ftp for backup , sftp for over the web, apache2 php5 mysql webserver, easy install printserver for a laserprinter with a com-port, and in the future a samba server. make a choice which version i need with CentOS. I am a beginner at all.I only know things about ubuntu server. I like to know the differences.
View 4 Replies View RelatedI'm using Postgresql 8.4.2-2. I'm trying to remote into my server securely. I figure I could do so with ssh. Apparently I figured correctly, as per, [URL] and [URL] I setup the ssh tunnel. ssh -L 5432:serverip:5432 Then I setup pgadmin3 to connect as follows:
host: localhost
port: 5432
user: postgres
maintenance db: postgres
And I receive the following error:
An error has occurred: Quote: An error has occurred: Error connecting to the server: server closed the connection unexpectedly This probably means the server terminated abnormally before or while processing the request.
I'm not sure what the problem is. I can connect with Code: psql from the cli after connecting to the terminal via ssh. So I know that I'm using the correct password.
i have been trying to complete the following project1) Configure a FTP server where we can upload and download files.........2) server must run at 9 pm & stop at 9 am automatically ............although the first task was easy ,i have no idea how to accomplish the 2nd task(not to mention I'm a new user)
View 5 Replies View RelatedHow to Centos 5.5 very secure for mail server. how to its performance very fast.
View 2 Replies View RelatedI'm trying to setup RAID 1 on a CentOS 5 server for a zimbra email server.I get a partion schema error. Can I do this?The server is a HP Proliant ML150 G3 server with two 80GB HDD.
View 1 Replies View RelatedI was looking for some help getting a good list of IP tables and other security measures on my new Linux Centos VPS.. I have some files I wan't no one other than myself to have access to.. I will be running some gameservers on it on ports 7777 and 7778 though and I want to have VSFTPD running for fast file transfers.
View 1 Replies View Relatedway of updating only the security packages on CentOS?
If I do a yum update. It updates everything and creates a new version which will unnecessarily uses space along with the old version. I don't want this to happen. way of updating only the security packages and keeping my old version of CentOS?
Is there a mailing list or an alert where I can subscribe to, so I know if there's critical or moderate patches I have to apply to my Centos 5 servers.
View 5 Replies View RelatedI have two servers, both running CentOS, but one running Cpanel as the control panel and the other running Webmin.
I would like to sync the web folders using rsync. However, when I sync the files from the Cpanel host the permissions look as follows:
Code:
But that doesn't work on the Webmin server which needs the following:
Code:
It seems the Cpanel install has the group as 'nobody' whilst webmin has it the same as the file owner. I can fix this by running:
Code:
But as the file transfers will be frequent, I don't want the files to be inaccessible until chown is run.
So, what I really want to know is - how can I change things on the 'webmin' server so that files with ownership owner:nobody will run?
I built a home server (NAS/WWW/SSH/media server etc) and chose CentOS 5 as the OS (stability, easy of configuration).I was just about to start tuning the power consumption when I realised that the kernel CentOS uses is so "old" that it does not support the latest reduced power consumption enhancements that Linux has achieved in big strides in the recent past (we are probably still talking 6-12+ months ago e.g. tickless kernel)..
So my questions; 1) I know CentOS was maybe not meant for home servers (certainly its not its primary purpose), but if it is, any ideas of what kind of power consumption it takes (I know its relative) and if there are particular power consumptions that are worthwhile?
2) Do you recommend me compiling my own 2.6.21+ kernel from kernel.org or am I just likely to have compatibility issues (I really did not want to do that) or when is CentOS 5.4 supposed to have a newer 2.6.21+ version kernel?
Was it wrong of me in principle to choose CentOS for a home server when I am power conscious? (I don't have a low-power VIA processor either but a P4 so I am really just hoping to make do with software changes).
I have a few mail servers, a mail log server and a web server running on Centos 5. Now I have a task: to avoid accidental crashes on the production servers while installing updates, my boss asked me to do clones (these clones will all be VMware virtual machines) of the servers (EXCLUDING the actual e-mails and log contents) and then to run those clones on VMWare Server. This way, first I will install and test updates on the clones and - if they will be running without crashes - I will apply the updates on the real production servers themselves.
I have already installed VMWare Server 2.0 I have a few questions: How do I build the virtual machines to exclude the actual mail files and mail logs? Can I use VMware Converter for this purpose, or do I have to use another program? How do I actually do this cloning? Is there a tutorial on how to do this?
