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  • How to make spamassasin reject mail based on score?

    - by Kaizoku
    I am running linux with postfix, dovcot, postgrey and spamassasin/spamd. This is my main.cf smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_unauth_destination, reject_invalid_hostname, reject_unauth_pipelining, reject_non_fqdn_sender, reject_unknown_sender_domain, reject_non_fqdn_recipient, reject_unknown_recipient_domain, check_policy_service inet:127.0.0.1:10030 I got spamassasin to add spam header to other emails that postfix didn't catch, but how to make it reject?

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  • Creating own Amazon Machine Image - Kernel panic

    - by amra
    I have created own AMI and registered it on Amazon EC2. But while AMI startup I receive following error: Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,1) The image is running locally without any problems. fstab contains: proc /proc proc defaults 0 0 /dev/sda1 / ext3 relatime,errors=remount-ro 0 1 thx for help

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  • Cisco 1841 and routing /29 address

    - by Jonathan
    Could someone please explain in general terms how I'd configure a Cisco 1841 (2x ethernet ports) to route a public /29 address block (6 hosts) to my internal network. I wish to give the Cisco router one public IP and then several of my internal Windows servers will receive the other public IP addresses. Other hosts behind the router will access Internet via NAT. I'm a bit confused as I've only ever setup routers/firewalls that had a single public IP address with NAT and port forwarding to internal servers.

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  • can i use an ip-list include file for iptable blacklisting

    - by rubo77
    I would like to block all countries except mine in iptables, that is a lits with about 100.000 Entries. how can i define this blacklistfile in a script, so iptables blocks all those ip-ranges? maybe i can use http://www.ipdeny.com/ipblocks/data/countries/ that provides lists in the form 117.55.192.0/20 117.104.224.0/21 119.59.80.0/21 121.100.48.0/21 ... i want to be able to change the blacklistfile easily without having to change the iptables-script

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  • Virtual Subdomains

    - by Dave P
    I would like to manage subdomains exclusively through .htaccess. I am able to catch subdomains that I set up - for example, support.testsite.com - currently, I redirect that to testsite.com/support. What I would like to do is retain the subdomain, even after the redirect - so support.testsite.com seems to stay in the address bar for the user, even though it is actually located at testsite.com/support. Should I maintain another .htaccess file in /support that rewrites the address? Thanks!

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  • How to use USB Key in Xen 5.6 Environment?

    - by Az
    I am looking for a way to use USB key on a guest OS running on a 5.6 Xen Server environment. The catch is that I need to actually detect in the Guest OS (Win2003 Server) like an actual USB Key. Attaching it as a storage drive doesnt work (It is a key with special attributes that servers as a licensing mechanism). Just wondering if anyone has had a similar need and found a good solution? Thanks, Nate

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  • How to stay connected on remote desktop even if different user tries to connect

    - by Darqer
    I'm logging through Remote Desktop to windows 7. Some other users sometimes try to connect to the same computer, then a message box pops up with information that I have 30 seconds to block this try or I will be logged off. Sometimes I'm away and then I'm being logged off and when I come back I have to log on again. Is there a way to turn off this functionality for single user. Is there some application that always breaks this login process ?

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  • How do you protect your <appid>.appspot.com domain from DDOS attack?

    - by jacob
    If I want to use CloudFlare to help protect my GAE app via it's custom domain, I still am vulnerable to attacks directly on the .appspot.com domain. How do I mitigate that? I could force redirect appspot.com host requests, such as discussed here: http://stackoverflow.com/questions/1364733/block-requests-from-appspot-com-and-force-custom-domain-in-google-app-engine/ But I would still suffer the load of processing the redirect in my app. Are there any other solutions?

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  • Lightweight ad-blocker for firefox

    - by student
    On a old machine (512 MB RAM) I am currently running ubuntu jaunty and firefox 3.0.15. I tried the ad blocker addon add block plus but it eats lots of RAM (300 MB). Is high memory load of this add-on a bug, which is fixed in a newer version or just normal? If so, why is the memory usage so high? Is there another ad blocker add-on for firefox or another browser- add-on combination for linux (ubuntu jaunty) which uses significant less RAM?

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  • Nginx SSL redirect for one specific page only

    - by jjiceman
    I read and followed this question in order to configure nginx to force SSL for one page (admin.php for XenForo), and it is working well for a few of the site administrators but is not for myself. I was wondering if anyone has any advice on how to improve this configuration: ... ssl_certificate example.net.crt; ssl_certificate_key example.key; server { listen 80 default; listen 443 ssl; server_name www.example.net example.net; access_log /srv/www/example.net/logs/access.log; error_log /srv/www/example.net/logs/error.log; root /srv/www/example.net/public_html; index index.php index.html; location / { if ( $scheme = https ){ rewrite ^ http://example.net$request_uri? permanent; } try_files $uri $uri/ /index.php?$uri&$args; index index.php index.html; } location ^~ /admin.php { if ( $scheme = http ) { rewrite ^ https://example.net$request_uri? permanent; } try_files $uri /index.php; include fastcgi_params; fastcgi_pass 127.0.0.1:9000; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_param HTTPS on; } location ~ \.php$ { try_files $uri /index.php; include fastcgi_params; fastcgi_pass 127.0.0.1:9000; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_param HTTPS off; } } ... It seems that the extra information in the location ^~ /admin.php block is unecessary, does anyone know of an easy way to avoid duplicate code? Without it it skips the php block and just returns the php files. Currently it applies https correctly in Firefox when I navigate to admin.php. In Chrome, it downloads the admin.php page. When returning to the non-https website in Firefox, it does not correctly return to http but stays as SSL. Like I said earlier, this only happens for me, the other admins can go back and forth without a problem. Is this an issue on my end that I can fix? And does anyone know of any ways I could reduce duplicate configuration options in the configuration? Thanks in advance! EDIT: Clearing the cache / cookies seemed to work. Is this the right way to do http/https redirection? I sort of made it up as I went along.

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  • Samba deny host not blocking that host

    - by datadevil
    I want to block access to some Samba shares from a certain machine, but somehow I can't get it to work: the machine can still access the shares, and I did restart and reload the samba daemon. Here is a part of my configuration: security = share hosts allow = 127.0.0.1 192.168.1.0/24 interfaces = 127.0.0.1 eth1 192.168.1.2 bind interfaces only = yes hosts deny = 192.168.1.251 encrypt passwords = yes guest ok = yes The shares themselves look like this: [examples] comment = Example path = /foo/bar read only = No guest ok = yes What am I doing wrong here?

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  • Creating a whitelist for RDP access

    - by Tgys
    Since people are getting unauthorized access to my Windows Server (bruteforced over several months..), I'd like to set up a whitelist for RDP access. I have tried the following with Windows Firewall inbound rules: This still allows other users to connect through RDP. Is there any way to block such unauthorized access through a whitelist? EDIT: The firewall is enabled, and it's the only firewall running on the machine. Rules like allowing port 80 traffic behave correctly.

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  • How to disable wifi usage on Windows 7

    - by Eric
    On a laptop, we currently use LAN(RJ45) connection to access internet. But from time to time, on startup, the laptop "catch" an unsecured wifi hotspot from one of my neighbors, so we would like windows 7 to NOT choose any wifi network : how this can be done ?

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  • smtp(s) proxy to monitor outgoing spam

    - by Zulakis
    I am looking for a smtp proxy to install on our gateway which should monitor outgoing smtp traffic to identify the source of recently occuring spam attacks from our network. It would be enough if this could log all outgoing mails, no actual filtering must be done as I'm going to do this manually. Also, is it possible to monitor smtps ports 465 and 587 or is it necessary to completely block these ports to stop spam?

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  • Preventing 304 Not Modified Requests with nginx

    - by ustun
    I am running nginx, and have the following block for expiration: expires 52w; However when I use Google Chrome Developer Tools to observe network traffic, some of the assets are loaded from cache (200-from cache) while most of the assets are making a request to the server (304 Not Modified). I want to load all assets from cache without communicating with the server if possible. (200-from cache) What would be the required change in my nginx configuration?

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