The blocking tag has no wiki summary.
1
vote
1answer
56 views
How to block the Java installer?
We send PC's out to customers that need a very specific version of Java installed; specifically 6.26. I already disable the Java updater but I was wondering if I could block the customer from ...
0
votes
0answers
15 views
windows server 2003 & blocking shared folder [closed]
i use windows server 2003 in my network and share sum file to other client.the client connect to server via remote.but in many times client can connect to server but don't sin in to mapped shared ...
0
votes
1answer
16 views
Blocking locks and performance
My main question is if high amounts of blocking locks degrade Oracle server performance. I understand that it can hurt users performance, but does it cause high load on Oracle itself?
0
votes
0answers
16 views
Exchange eMails In A Mailbox Appear To Be Blocked By A Dud Message
I have a client with an Exchange server on which there are quite a few mailboxes.
One mailbox in particular is causing some problems. When an email from a certain address arrives, it appears to ...
1
vote
3answers
88 views
IPTables not blocking some connections
I am using IPtables for a basic firewall, I have placed some blocks on those IP's attempting FTP, SSH conenctions, etc.
I have accept rules at the top for good measure to ensure that my monitoring ...
0
votes
1answer
81 views
synchronization between two (or more) file servers : block open files to avoid conflicts
"Short version": When a user opens a file on a local share, other users can open only in read-only, until it is closed.
I want this to be true for the remote copy of the file: read-only when the local ...
0
votes
3answers
320 views
How Do I Block an IP Address on ubuntu?
I have configured Ubuntu machine as router. Steps of NAT configuration are given below:
#iptables -F
#iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
#iptables-save ...
2
votes
1answer
98 views
Block UDP traffic by rate/string-match on Windows 2008
I am administrating a Windows 2008 server (64-bit). It is being subjected to a focused set of DOS attacks where UDP packets are sent to a specific port and contain a specific string.
What I need to ...
2
votes
1answer
33 views
Block specific client on CentOS by client name
I am looking at my Apache access log and there is suspicious activity from several ip ranges. What they have in common is that all of them are identified as "Allegro-Software-WebClient/4.07".
Is ...
1
vote
1answer
144 views
Nginx: protect directory and files
I wrote this to prevent the directory "download" to be accessed but from the IP 1.2.3.4.
location ~ /folder/download {
allow 1.2.3.4;
deny all;
return 403;
}
However, the directory ...
2
votes
1answer
492 views
Linux kernel crash - any ideas?
Been getting these runaway conditions on a lightly loaded vps (debian squeeze kernel 2.6.38-bpo.2-amd64, 2GB, SSD) - top load is nothing , then jumps to 30.0 & everything grinds to a halt. I'm ...
4
votes
2answers
653 views
MySQL InnoDB database 'hangs' on selects
I'm trying to fix MySQL configuration on our server.
Our app's specifics is that a lot of data is stored in single table (currently over 300 millions of rows). This table is used often for inserts ...
0
votes
4answers
39 views
What paths should I be ignoring on an Apache2 webserver?
I'm deploying my WSGI-based Django application to an Apache2 server. Recently, I've noticed several requests going to /_vti_inf.html, which are apparently requests by Microsoft FrontPage or SharePoint ...
1
vote
3answers
349 views
How do I block all websites (except for a whitelist of 10 or so) for specific computers on a Windows domain?
I keep seeing references to something called Squid, but I take it that's only for Linux. Rather than needlessly pay $1,000+ bucks for a content filtering subscription on our firewall, I'm seeking an ...
1
vote
2answers
170 views
How to ban potential hacker IP Addresses from Port 80?
I am hosting a bunch of PHP web sites on a web server. While I have taken all precautionary mesaures to protect all ports, Port 80 specific attacks continue. I want to ban any IP Address that taken an ...
1
vote
5answers
139 views
Block ssh tunneling navigation in my LAN
I would like to stop people bypassing Opendns and squid proxy blocks to get on facebook using ssh tunnel to their pc home.
I know I can fix this talking to boss but I'd also like to understand better ...
1
vote
2answers
190 views
Automatically block IP in apache2 - it is possible?
Is there are a way to automatically block IPs with apache2. For example, if we get a lot requests (100s) for non-existing pages (or known patterns, like CHANGE_LIST.txt, etc.) to block that IP and add ...
0
votes
1answer
37 views
Port periodically blocked
I'm wondering what are the possible ways to block some port while it is in use by some other process?
Short story long: I've got an app(1) that communicates with another app(2) on one host/local ...
0
votes
1answer
49 views
Standards for email block list?
Is there any standard list of email prefixes or words that should be blocked by default?
If I'm sending a message as part of a validation flow or on behalf of a user, are there any standards for ...
2
votes
3answers
931 views
How to configure a network to block gmail but allow google apps mail?
Google app mail loads via http://mail.google.com/a/[domain] and gmail loads via http://mail.google.com/mail.
How can I block computers on my LAN from accessing gmail urls but at the same time permit ...
2
votes
2answers
101 views
I have a blocking transaction, but no statement is shown
My SQL Server 2008 started hanging on simple queries, so I checked for blocking transactions, using the built-in All Blocking Transactions report. Sure enough, such a transaction exists. However, if ...
11
votes
10answers
1k views
Block Facebook for selected users
We have a few users here who are using Facebook during working hours and their productivity is through the floor, as a temporary measure I have remotely edited their hosts files to point facebook.com ...
0
votes
1answer
185 views
htaccess config to block depending on browser agent
In one case i wish to block all Internet Explorer versions from my site using htaccess. I have read several guides but still can not get it to work. what is the most understanding way of doing it. If ...
1
vote
1answer
3k views
Forefront TMG Proxy blocking internal HTTP requests for FQDN
I have Forefront TMG installed as a proxy server. However, whenever I make HTTP requests to servers on the Internal network with a fully qualified DNS name, the proxy denies the connection.
Denied ...
0
votes
2answers
214 views
Blocking RDP connections from secondary IP addresses
I have a webserver running Windows 2008 R2 with multiple IPs assigned to it. I want to be able to RDP to the box via the main IP assigned to the box but not from any of the secondary IPs (ie... the ...
1
vote
2answers
305 views
Blocking a specific URL by IP (a URL create by mod-rewrite)
We need to block a specific URL for anyone not on a local IP (anyone without a 192.168.. address)
We however cannot use apache's
<Directory /var/www/foo/bar>
Order allow,deny
Allow from ...
0
votes
2answers
105 views
restrict ip stealing
we are working in a lab with set of 35 systems in college. my system is only ubuntu installed and i got the separate ip for my project purpose. and each one having the separate ip. but somebody else ...
1
vote
1answer
1k views
Disk IO causing high load on Xen/CentOS guest
Background
I'm having serious issues with a xen based server, this is on the guest partition. It's a paravirtualized CentOS 5.5. I'm not sure if it's hardware or software related, or in between ...
0
votes
1answer
49 views
Blocking Clients while Forwarding All Traffic
Greetings,
How to block clients by masking their subnet mask or changing their gateway information while forwarding any outward traffic from such clients to a specific proxy or server to display some ...
0
votes
3answers
189 views
Why is Yahoo blocking our email address verifications and bouncing them back
I have a legitimate site www.angelescity.ph a Free Classifieds site, once someone posts an advert a verification email is sent.. Yahoo has been blocking them, not delivering and bouncing them back, ...
1
vote
1answer
251 views
Need help with IP filtering and port forwarding
I have a static IP assigned to me by my ISP. I want to access a server running tomcat in our network from outside the LAN. Can any one give a few pointers, to what I need to do, and where to start ...
1
vote
1answer
21 views
Firewall blocking files using Reg_Ex needs to be adjusted
We have security in our firewall to prevent SQL-Injection from destroying any of our content:
Name
Type
Context
Severity
Pattern
Configure
CS:select_into
signature
http-url
critical
...
-3
votes
1answer
205 views
How to set up websense to prevent workers from answering questions on SO?
Question 1: How to set up websense to prevent workers from posting on SO (and all related sites), without blocking them from viewing answers?
Question 2: How to make SO (and all related sites) pop up ...
0
votes
1answer
537 views
How do I block host name instead of just IP?
I was wanting to block a list of specific hosts, specifically so my server has no access to them at all. I tried using host2ip and entering the result into IP tables , but the IPs don't seem to lead ...
2
votes
2answers
544 views
NFS-shared file-system is locking up
Our NFS-shared file-system is locking up.
Please feel free to ask any questions you feel relevant. :)
At the time, there are a lot of processes in "disk sleep" state, and the load averages on our ...
2
votes
3answers
244 views
Stop slowing down fast and verbose operations when using ssh over slow connections
I often copy many files between 2 servers connected via 1GBit ethernet while I am connected via VPN and SSH over DSL. The problem is, that the verbose output (1 line per copied file) which needs to be ...
0
votes
1answer
168 views
Why is php-firewall blocking these ip ranges, isp's and host's? where can I found the blacklist?
The php firewall is blocking thees ip ranges for spam. Thats ok, but where is the source for this information?
$ip_array = array('24', '186', '189', '190', '200', '201', '202', '209', '212', '213', ...
1
vote
2answers
276 views
What's the best way to monitor SQL Server Concurrency issues?
What's the best way to monitor SQL Server Conccurency issues?
Specifically my goal is to reduce or prevent deadlocks and blocking and to catch potential concerns before they become a problem.
For ...
2
votes
3answers
232 views
block websites in our network
We would like to block users from accessing sites like facebook and all from our network. All the connections are through our router(linux machine). What would be the best way to block the sites on ...
0
votes
2answers
214 views
Hosts file entry directed to a directory on localhost
I have a directory setup with a nice error message at http://localhost/blocked/. I'd like to direct entries in my hosts relating to sites I've blocked to that instead of just 127.0.0.1. ...
1
vote
2answers
112 views
Where is traffic destined for a specific TCP port being blocked?
I have a server that is set up to listen to a specific port (1433), and normally there is no problem accessing that port from anywhere. From one of the locations I work, however, I can't connect to ...
0
votes
2answers
81 views
Site getting blocked on corporate networks
Our site is getting blocked in corporate networks across various companies, but not all. Would appreciate help on what could be the reasons for this and how we can resolve this?
Attached are a couple ...
0
votes
1answer
408 views
Apache VirtualHost Blockhole (Eats All Requests on All Ports on an IP)
I’m exhausted. I just spent the last two hours chasing a goose that I have been after on-and-off for the past year. Here is the goal, put as succinctly as possible.
Step 1: HOSTS File:
127.0.0.5 ...
2
votes
3answers
2k views
SQL Alter database failed - being used by checkpoint process
On my SQL server 2008, i have a SQL agent job to restore a database on nightly basis. Procedure:
find latest backup on other server
Kill all conenction to the destination database
Restore ...
0
votes
3answers
1k views
check if a domain is blacklisted / blocked
Some clients report to us that our site is not accessible through their internet connection. We suspect our site is wrongfully blocked by some security software/firewall/public blacklist.
How can ...
4
votes
3answers
309 views
Can i safely block all ports on my sever
I have a web server running pleks and get attacked a lot every day. I configured a firewall, and there are some predefined services such as www, and ftp, etc.
I am planning to block all the ports ...
1
vote
2answers
426 views
Use .htaccess to block *All* access to specific folders
I am not sure how to do this, but I want to block all access to a specific set of folders on my web server. Say secret01 and secret 02...
homeDir
|- data
|- www
| |- .htaccess (file)
| |- ...
1
vote
2answers
601 views
Are there internet users connecting with HTTP/1.0?
Are there internet users connecting with HTTP/1.0? Such as over a proxy. Because I'm going to block HTTP/1.0 since most of the bots are using HTTP/1.0.
2
votes
2answers
2k views
Log and Block Website using Windows 2008 SBS
A client has asked me to setup Windows 2008 SBS to block and log websites from a list they will provide. As far as I know they only have standard edition which means I cannot use ISA. I was thinking ...
1
vote
4answers
4k views
Squid: how to block websites for a particular IP address?
How to block websites for particular IPs by squid?
Please give solution with example or configuration file.
