For the last four days, I have been getting HIDS alerts like these:
Code:
152.2.x.x - - [15/Feb/2011:04:28:59 -0500] "PROPFIND /C%24.co HTTP/1.1" 405 231
152.2.x.x - - [15/Feb/2011:04:28:59 -0500] "PROPFIND /C%24.com HTTP/1.1" 405 232
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I would like to know the blocking methode In a Firewall or a Router.whether i will be done by Protocol wise, ho? or it will done through Host wise, How ?
View 2 Replies View RelatedTo an old Acer Veriton 7500 I have transferred master and slave HDs (as well as a Realtek network card, a scsi card, and a usb2 card) from a died old machine, Debian Linux squeeze i386. Everything works, except problems with the CDs, as noticed on boot. Check:
francesco@deb32:~$ dmesg | grep -i hdc
[ 3.472184] hdc: CD-ROM 52X/AKH, ATAPI CD/DVD-ROM drive
[ 3.808070] hdc: host max PIO4 wanted PIO255(auto-tune) selected PIO4
[ 3.808175] hdc: bad DMA info in identify block
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I'm having some basic doubt! Consider 5 virtual domains has configured under a same server. I mean 5 different domains under same IP. Eg. mydomain1.com and mydomain2.com have IP 208.27.1.89. So when web browser request for mydomain1.com name server return IP address 208.27.1.89. Then browser contact IP 208.27.1.89 on port 80. Here comes my question how does apache know that the browser is looking for mydomain1.com not mydomain2.com. How apache differentiate the request for it's virtual hosts? By the way, what is a virtualhost ?
View 1 Replies View RelatedIs there a way to identify exactly what application is asking for keyring access at the given time? I get this query every boot and it's getting annoying. The annoyance is there, but more importantly and from a personal security standpoint on desktop systems, it's pretty bad that it doesn't say what application want's the access.
View 7 Replies View RelatedI was wondering if anyone might know of good reference material, books websites etc., that discuss network security issues in layman terms. I would like to set up a dedicated Linux box as a firewall and would like to have a deeper understanding of the different types of configurations that are possible. I run a dual boot system and most of the firewalls I have used on the Windows side are very confusing to me. A lot of the time they give you a pop up that informs you that some cryptically named program is trying to access the network or the internet and wants to know if I want it to or not, 99% of the time I have not idea if it is a legitimate program or not. I realize that this is probably a separate issue (knowing how to identify programs and processes that should have access from those that should not) from setting up a firewall and basic network security but I know that they are related.
View 3 Replies View Relatedi am writing block deriver for usb device in linux i want to read and write data to/from usb device i already registered usb device with my driver and opened the handle for the usb device now i need to send scsi command to usb device to make it work but i dont have knowledge about scsi commands and how and where to use them now i need to know which scsi command i need to pass to the usb device and how can i pass that command to usb device also i need some information like how to register host controller with my usb driver
if anyone knows about this or where can find the tutorials / documentation/ framework for the same.
on my linux server i have many websites but with difrent ips address, is some way to i can block all the ips with many connection (100+) just from my website not from all websites
View 5 Replies View RelatedIs this how I would do that?
iptables -A INPUT -p tcp --destination-port 21 -d ! 168.192.1.2 -j DROP
This should block all incoming connections on port 21 from 192.168.1.2, correct? Thus preventing that IP from logging into my FTP.
What is the easiest way to block one specifiek web page?Can I use the file /etc/deny host, or should I use another program to do this?I have already search the web andfound iptables, but that is to difficult for me, and I found squid
View 1 Replies View RelatedWhat i wanted to do was block everything from getting in my pc but still be able to surf the web and still use instant messenger.
View 2 Replies View RelatedI'm trying to block an incoming URL. My ISP is hijacking 404 pages and annoyingly changing the URL line in the browser and flashing all sorts of popup ads. I just need it for incoming URLs which my router doesn't seem to handle. I'd prefer something packaged with Ubuntu 8.04, but anything simple will do. I know in KDE I could edit the kdeglobals file with:
[KDE URL Restrictions]
rule_1=open,,,,[URL],,false
rule_count=1
Im running Centos 5.4 with a sftp server, and I�d like to allow all 172.16.0.x ip and 192.168.0.x ip and block everything else. Does someone have a good way to do this with IPTables or any other opensource FW?
View 10 Replies View RelatedWhat's the best way in centos to block a user from accessing mysql. I don't want him to be able to run the mysql command, so just putting passwords up in mysql is not good enough. Mysql is running ad user=mysql, and i added the user in a different group by he is able to access mysql by typing in the command.
How can i block this command being availible for this user.
I was wondering how to block attachments to gmail. I am running squid 2.7 stab9 with dansguardian 2.10, users authenticated from LDAP. I have configured the POST restrictions in Dansguardian which does block all attachments to hotmail/yahoo etc etc but attachments to gmail continue to upload.
View 1 Replies View RelatedI am looking for an answer about how to allow just one trusted DHCP server and block others ?I am using Centos 5.5, iptables and dhclient.I have read that it is impossible to block DHCP Replay using iptables: URL...So how can I do that ? Maybe another dhcp client?
View 4 Replies View Relatedhere i would like to inform you that my company ask me to block facebook site at the work time it is: 08:00-12:30 and 14:00-17:30 in proxy server.i'm still confuse how to do!i need the details configuration in squid regarding how to block the sites
View 2 Replies View RelatedIs it possible to block a subdomain or a one lower level directory URL access from other hosts or network ? I have a site running on my server and i want to block the particular directory under the domain, with the exception of loopback access? I mean the directory must be accessible from loopback/localhost.
[url] on port 10016(expect loopback)
[url] on port 10016 (expect loopback)
Code:
I enabled ufw yesterday, and am finding log entries like:
Jun 30 13:07:51 xxxx kernel: [15702368.296557] [UFW BLOCK] IN=eth1 OUT= MAC=00:22:19:5e:8f:23:00:0c:db:fc:8b:00:08:00 SRC=xx.xx.xx.xx DST=xx.xx.xx.xx LEN=40 TOS=0x00 PREC=0x00 TTL=55 ID=47632 PROTO=TCP SPT=58875 DPT=80 WINDOW=65535 RES=0x00 ACK FIN URGP=0
What is puzzling is I did the command: ufw allow 80.
I recently set up a web server at home, using a non-standard port, due to my ISP blocking 80. I just checked my log files, and I see a TON of entries indicating that a file was not found "proxy-1.php", "proxyheader.php", etc. I do not have these files, not intend to have them as part of my website. I did a whois looking by IP address for several of these, and they all seem to come from an ISP in China. Is there a way to BLOCK any IP address outside the US (that is somewhat simple to do?)
View 5 Replies View RelatedI did one of the recommended port scans and all ports passed but failed on pinging. How do you turn pinging on & off with GFUW?
View 9 Replies View RelatedMy question is how to block a subdomain of a site. To make it as clear as possible, I'll give an example. I am regularly entering this arbitrary site [URL] which redirects me to this page [URL] and this index.html takes an image from a subdomain which is a subfolder of itself, that is: [URL]. What I am asking is blocking the images to be taken, but not the main page itself, i.e. to block www.somesite.abc/images/ without blocking the overall www.somesite.abc.
My idea was to use the /etc/hosts file by redirecting to loopback address:
Code:
127.0.0.1 www.somesite.abc/images
But it looks as if it doesn't affect things at all. Should I use it another way? Modifying /etc/hosts.deny maybe useful?
I have noticed interesting problem. I use two browsers - Firefox and Konqueror. Konqueror is configured to use tor, Firefox not. Using Gufw I block all incoming and outgoing traffic and it works while using Firefox, I mean that I can't view any www site and it is ok. But if I use Konqueror I can establish any conection. How to understand this? Should I have different firewall while using tor?
View 5 Replies View RelatedI want block https sites if suppose block the http it will opening in https.
View 9 Replies View RelatedFor example, can I write something to the effect: block all outbound UDP connections over port 53 except those going to IP 123.456.789. Or stated another way: Block outbound to port 53/udp NOT going to ip address 123.454.678Is it possible to do this? How would I write the argument?
View 3 Replies View RelatedI want to block a domain name in sendmail server. I added the domain name and "REJECT"in /etc/mail/access file. What has to be done for the changes to take effect? when i run make command in /etc/mail dir i get following error : make: Nothing to be done for `all'.
View 1 Replies View Relatedhow to disable the gmail chat? My means to say that when we login to gmail , after that the chat will open, I want to disable that chat. am using Redhat 9 and squid stable 2.5 version. I have tried the things mentioned below, but chat is still working.
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I run SSH on a publicly open server and see following attempts in /var/log/auth.log which I was told by some one could be port scanning attempts.(Not sure though)
Code:
Nov 18 23:50:19 server sshd[21716]: Did not receive identification string from 186.0.80.197
Nov 19 00:05:57 server sshd[24056]: Did not receive identification string from 85.108.110.66
How can I block above such attempts?
how to block any IP address who failed to connect more than 3 ssh?
View 5 Replies View RelatedMy Problem is: I want to stop gmail access without blocking https. Yes in my squid proxy normal http://gmail.com is not accessible. But gmail recently started https service by which user can still get access to gmail. I DONT WANT TO STOP https CAUSE ITS BEING USING BY MY COMPANY GOOGLE MAIL PROGRAM.
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