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  • What's the best way to block IP spoofing on a layer 3 switch?

    - by toupeira
    We're hosting Dedicated Servers and are currently using old 3com switches with IP-based ACLs. So each port has an ACL that allows all IP addresses assigned to this customer, and blocks everything else. But now 3com was bought by HP, and the follow-up model only supports basic ACL that aren't flexible enough to both allow certain IPs while blocking others. Looking at other switches in a similar price-range, we've found that most of them have similar problems or don't offer any ACL features at all. I assume this could also somehow be done with VLANs, but if I understand this correctly we'd still need some kind of ACL to actually specify the valid IP addresses for each port. What do you use to make sure your customers don't use unassigned IP addresses? Or what switches can you recommend that have flexible ACL functionality?

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  • Verizon Fivespot firewall

    - by Patrick
    I have a Verizon Fivespot Wi-Fi router and am having issues connecting to the computer that uses it to get on the internet. I am able to connect to the Fivespot admin pages remotely and I am able to connect to the internet from the computer behind the Fivespot. There are two sections pertinent to this issue, Port Filtering And, Port Forwarding I've tried each individually and both together but cannot access anything through the router except for the admin page. I am trying to connect through SSH to an Ubuntu 10.04 box over wifi. I have called Verizon Tech Support but they were unhelpful, the person essentially read what it says on each screen without any elaboration. Any help is greatly appreciated!

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  • installed mongo using brew but stuck at prompt

    - by user50946
    I have installed mongo using brew on my mac. When I give mongo command I see this MongoDB shell version: 2.4.6 connecting to: test but it stays there and never give me command prompt back anyone else noticed something like this I have reinstalled with no luck. The issue is persistent thanks Logs ***** SERVER RESTARTED ***** Fri Oct 18 08:11:48.360 [initandlisten] MongoDB starting : pid=2081 port=27017 dbpath=/usr/local/var/mongodb 64-bit host=Asims-MacBook-Air.local Fri Oct 18 08:11:48.360 [initandlisten] db version v2.4.6 Fri Oct 18 08:11:48.360 [initandlisten] git version: nogitversion Fri Oct 18 08:11:48.360 [initandlisten] build info: Darwin minimountain.local 12.5.0 Darwin Kernel Version 12.5.0: Sun Sep 29 13:33:47 PDT 2013; root:xnu-2050.48.12~1/RELEASE_X86_64 x86_64 BOOST_LIB_VERSION=1_49 Fri Oct 18 08:11:48.360 [initandlisten] allocator: tcmalloc Fri Oct 18 08:11:48.360 [initandlisten] options: { bind_ip: "127.0.0.1", config: "/usr/local/etc/mongod.conf", dbpath: "/usr/local/var/mongodb", logappend: "true", logpath: "/usr/local/var/log/mongodb/mongo.log" } Fri Oct 18 08:11:48.361 [initandlisten] journal dir=/usr/local/var/mongodb/journal Fri Oct 18 08:11:48.361 [initandlisten] recover : no journal files present, no recovery needed Fri Oct 18 08:11:48.398 [websvr] admin web console waiting for connections on port 28017 Fri Oct 18 08:11:48.398 [initandlisten] waiting for connections on port 27017 Fri Oct 18 08:12:03.279 [signalProcessingThread] got signal 1 (Hangup: 1), will terminate after current cmd ends Fri Oct 18 08:12:03.279 [signalProcessingThread] now exiting Fri Oct 18 08:12:03.279 dbexit: Fri Oct 18 08:12:03.279 [signalProcessingThread] shutdown: going to close listening sockets... Fri Oct 18 08:12:03.279 [signalProcessingThread] closing listening socket: 9 Fri Oct 18 08:12:03.279 [signalProcessingThread] closing listening socket: 10 Fri Oct 18 08:12:03.280 [signalProcessingThread] closing listening socket: 11 Fri Oct 18 08:12:03.280 [signalProcessingThread] removing socket file: /tmp/mongodb-27017.sock Fri Oct 18 08:12:03.280 [signalProcessingThread] shutdown: going to flush diaglog... Fri Oct 18 08:12:03.280 [signalProcessingThread] shutdown: going to close sockets... Fri Oct 18 08:12:03.280 [signalProcessingThread] shutdown: waiting for fs preallocator... Fri Oct 18 08:12:03.280 [signalProcessingThread] shutdown: lock for final commit... Fri Oct 18 08:12:03.280 [signalProcessingThread] shutdown: final commit... Fri Oct 18 08:12:03.282 [signalProcessingThread] shutdown: closing all files... Fri Oct 18 08:12:03.282 [signalProcessingThread] closeAllFiles() finished

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  • Can not access to my apache server remotely

    - by Jichao
    I have bought a VPS server, setted the apache server. But I could only access the webpage from local, I thought maybe the server did not recieveing access from outside. I tried Firefox, but the access_log shows nothing accessed. But telnet http://www.59lt.com 80 and type nonsence code, I recieved following error: and the access_log under /etc/httpd/logs also caught the acess, This proved that the server do access request from outside, so why it ignore the normal request from Firefox, but choosed to recieving request from telnet? Thanks. PS: I'm using CentOS + yum installed apache(just now installed).

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  • Install Linux with two hard drives

    - by rdecourt
    I've a machine with two hard drives. The first one has 80 GB and the second has 120 GB. I'm about to format this machine and install Linux, and I want to install all the main partitions (/, /boot, /usr/, etc.) on the first hard disk drive (sda) and mount the /home and /var partition on second disk (sdb). Is this possible, and do I have to do something after the instalation? Or is the second hard disk drive automatically mounted? How can I do it? I won't do it, but is there any problem to mount /boot on the second hard disk drive? I'm using Ubuntu 12.04.

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  • Why do some machines respond with many RST packets instead of RST-ACK to refuse a connection?

    - by Michael J. Gray
    I have recently been trying to track down a problem with one of our systems and have noticed that it is simply not allowed to connect to a remote machine. However, the remote machine (not controlled by us) is responding to our request for a connection with many TCP RST packets on a different port (26469, 26497, 26498) than the one we originated on (53). It simply wouldn't let up at one point and flooded us with about 10 packets/second for an hour or two of only RST on those obscure high ports. Out of the thousands of nodes we're connecting to, this is the only one ever to show this behavior. What could possibly cause this? EDIT Below is a screenshot of Wireshark when it happened. I don't have the actual dump anymore and can't reproduce this specific scenario every time. Basically, we sent a SYN and immediately got RST on an odd port and so we respond with RST and just keep going back and forth.

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  • How can write a mod_rewrite rule to determine if the domain is not the main domain then change https:// to http://

    - by Oudin
    I've set up a WordPress multi-site with a wildcard ssl for example.com to access the admin area securely. However I'm also using domain mapping to map other domains to other sites e.g. alldogs.com to alldogs.example.com. The problem is when I'm trying to access the front end of a site from and admin for a mapped domain e.g. alldogs.com by clicking "Visit Site" the Link goes to https://alldogs.com because of the forced ssl applied to the admin area. Which produces a certificate warning since the certificate is for example.com and not alldogs.com. How can write a mod_rewrite rule to determine if the url/link clicked on is not the main domain e.g. example.com then change the https:// to http:// so the site can be accessed via port 80 and not generate a certificate warning for that mapped domains

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  • Squid stale-while-revalidate not working when max-age=0

    - by Wiliam
    Squid 2.7 always reaches backend, expected is to reach backend using stale-while-revalidate only when cache expires, not when client triggers max-age=0. Script: <?php header('Cache-Control: public, max-age=10, stale-if-error=200, stale-while-revalidate=500'); header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); sleep(2); die("OK"); And squid config: # http_port public_ip:port accel defaultsite= default hostname, if not provided http_port 80 accel defaultsite=mydomain.com # IP and port of your main application server (or multiple) cache_peer 127.0.0.1 parent 8000 0 no-query allow-miss originserver name=main # Do not tell the world that which squid version we're running httpd_suppress_version_string on # Remove the Caching Control header for upstream servers header_access Cache-Control deny all #header_access Last-Modified deny all # log all incoming traffic in Apache format logformat combined %>a %ui %un [%tl] "%rm %ru HTTP/%rv" %Hs %<st "%{Referer}>h" "%{User-Agent}>h" %Ss:%Sh access_log /usr/local/squid/var/logs/squid.log combined all cache_effective_user squid refresh_pattern . 10080 90% 999999 ignore-no-cache override-expire ignore-private icp_port 0

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  • HTTPS redirects in nginx

    - by CadentOrange
    I'm trying to redirect all HTTP traffic to HTTPS. The web server I'm using is nginx. This is the server block I'm using to do the redirect. server { listen 80; rewrite ^ https://$server_name$request_uri? permanent; } This successfully redirects URLs like http://localhost to https://localhost. However, for URLs like http://localhost/table/ I get redirected to https://table which is incorrect. I would like it to re-direct to https://localhost/table/ Any help would be much appreciated. Update: It seems that the rewrite scheme has a problem with trailing slashes. For example, http://localhost/table gets correctly redirected but http://localhost/table/ does not.

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  • Invalid command 'VirtualDocumentRoot'

    - by andy
    I'm unsure as to why I'm getting the following error when apache is rebooted: Invalid command 'VirtualDocumentRoot', perhaps misspelled or defined by a module not included in the server configuration Action 'start' failed. The snippet it is referring to is this: <VirtualHost *:80> ServerAdmin [email protected] VirtualDocumentRoot /local/www/staging/%1 ServerAlias *.staging.mydomain.com </VirtualHost> I assumed it was a misspelling as it said, but it was copied directly from another server of mine. It works perfect there. Any ideas?

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  • How to use postfix header_checks with zarafa outgoing mail

    - by olvrlrnz
    I'm using zarafa as MDA with postfix. For privacy reasons I want to filter client internal IP-addresses and stuff like this. To do so I've added the following to master.cf: submission inet n - - - - smtpd [...] -o cleanup_service_name=subcleanup [...] and further down the file: subcleanup unix n - - - 0 cleanup -o header_checks=pcre:/etc/postfix/smtp_header_checks which works perfectly for clients delivering their mail through the submission port. But my zarafa is of course not using the submission port to send mail, hence it doesn't hit the subcleanup routine and outgoing mails contain a very nice X-Mailer: Zarafa-exact_version header which is rather unsatisfying. Is there any way to make zarafa use the subcleanup routine? Any help is much appreciated.

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  • How to make local apache server public/visible ?

    - by George
    Hello. I am running an Apache2 server on a Fedora 13. I'd like to make it publicly accessible(visible).For example I'd like when somebody types http://my.ip.numbes/ that they would see what I have in my document root folder. Just for a presentation of a course work at university. Permissions are set to 755. User owning the document root is apache. SELinux is temporarily disabled. But port 80 is closed. I tried to open it by adding an entry to iptables and restarting them, no change. I guess I am missing something big here. Help would be greatly appreciated. Note: I have a static (public, real) IP address.

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  • Is it possible to continue torrent downloads from other client

    - by Nrew
    I have downloaded a torrent file but I downloaded it using bitlord. And because bit lord doesnt have the ability like initial seeding. I decided to use utorrent. Ive already tried to continue it. What I did was to: Opened the original torrent file in utorrent. Target where the incomplete bitlord incomplete file was. But it seems that utorrent isn't detecting the file and it makes another copy of it and start to download from the beginning. Im at about 80 percent and there are only 18 seeds but there's 17 leech. And my connection is slow so I really have to initial seed. Other details: I've reformatted the original machine where I downloaded it. Also didn't copy the original application.

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  • Cannot start IIS on XP64 Professional

    - by headsling
    I have enabled the iis components for the first time on this machine, from control panel-add software-windows components, and rebooted. When I attempt to start the "Default Web Site" (which shows as 'Default Web Site (Stopped)' ) from inetmgr nothing happens.. no errors, nothing in the event log. Regmon and Filemon show no obvious errors. I've confirmed that nothing is running on port 80 and have tried changing the local port (8080, 8081 etc.,) with no effect. Further info -- I have removed the install, rebooted, added it back in, rebooted ... still not working. I have visual studio 2008, SQLServer 2008 installed.

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  • Second virtual host on Apache redirects to root

    - by Slytherin
    I tried to setup my second virtual host , but I'm getting the default /var/www/index.html ( the one that says "It works!" ) I followed the same procedure as the first time, but this time it didn't work my configuration looks like this <VirtualHost *:80> ServerName messup ServerAlias messup.loc ServerAdmin webmaster@localhost DocumentRoot /var/www/messup ErrorLog ${APACHE_LOG_DIR}/error.log CustomLog ${APACHE_LOG_DIR}/access.log combined </VirtualHost> my hosts configuration is the following 127.0.0.1 localhost 127.0.1.1 SlytherinPC 127.0.0.1 AFS.loc 127.0.0.1 messup.loc After this , my apache wouldn't restart without any message , only saying [fail] , but stop and start worked. What am I missing ?

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  • Tracing what program is making a network connnection? (CentOS)

    - by Airjoe
    I was wondering if it is possible to find out which process is trying to make a specific network connection. On a server I support which hosts websites for about 200 users, the iptables firewall keeps blocking, as it should, a connection to 212.117.169.139 on port 80. Firefox reports this as an attack page (and at the least is obvious spam, if not malicious). It seems something on this server is trying to access this site for some reason, and although it's being blocked successfully, the requests seem to be going through every two to sixty seconds and I'd like to be able to find what process or script is doing this so I can handle it appropriately. Besides doing a grep to try and find if this IP is in some file (which probably won't even work because it may be working by hostname or it may be encoded), is there any way to find out some more information? Thanks!

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  • Why doesn't postfix use my smtp_generic_maps?

    - by RichardTheKiwi
    What have I set up incorrectly? >postconf -n .... smtp_generic_maps = regexp:/etc/postfix/rewrite .... >cat /etc/postfix/rewrite /.*/ [email protected] >echo "test" | mail -s "test" [email protected] >tail -f /var/log/mail.log Dec 8 05:56:01 xxxxxxxxxxxx postfix/pickup[20227]: E9272709284: uid=501 from=<yyyy> Dec 8 05:56:01 xxxxxxxxxxxx postfix/cleanup[20270]: E9272709284: message-id=<[email protected]> Dec 8 05:56:01 xxxxxxxxxxxx postfix/qmgr[20228]: E9272709284: from=<[email protected]>, size=331, nrcpt=1 (queue active) Dec 8 05:56:03 xxxxxxxxxxxx postfix/smtp[20272]: E9272709284: to=<[email protected]>, relay=mailinator.com[72.51.33.80]:25, delay=1.1, delays=0.02/0.01/0.48/0.58, dsn=2.0.0, status=sent (250 Ok) FYI, I have reloaded postfix many times sudo postfix reload Note: This is on OSX 10.7.5

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  • Project Server 2010 site creation - the database connection string is not available

    - by Brandon Montgomery
    I am trying to get Project Server 2010 up and running on a Win Server 2008 box. I've got Sharepoint 2010 installed and Project Server 2010 installed. I open SharePoint Central Administration, then I go to Manage Service Applications Project Server Service Application. It looks like there is a site under the "Sharepoint - 80" section, but the Status says "Failed - see the Application event Log". When I click on the site and select "Retry" I get the same thing. In the event viewer, I see an error with SharePoint Foundation Search as the Source - it reads: Could not create a database session. Context: Application '276504a6-93b1-4c1f-a900-fd6ed9d5c117' Details: The database connection string is not available. (0xc0041228) How can I fix this? Is there some configuration I missed?

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  • Can only connect to IIS site through localhost

    - by Rembrandt Q. Einstein
    I'm building a web service for my company's iPhone application, and everything's been working smoothly by running tests through localhost on the development machine. I'm now in the phase where I need to test connections from other computers within the network, and any connection other than localhost gives me a 404. My internal IP, 127.0.0.1, and computername all get 404 when connecting from any computer, either the one the site's hosted on or any others on the network. Telnet can get through to port 80, and I've temporarily disabled all firewalls on this machine (I do not have control over the external firewall, but I'm only testing connections within the network) Does anyone have a clue why this is happening? I was able to connect to the web service from other computers when hosted on a Mac via Apache, but because I'm now using a SQL Server connection I'm restricted to using IIS for Windows Authentication. Googling only provided answers related to firewalls, and mine is disabled note: I cannot use Anonymous Authentication, but even in testing that it did not affect the issue.

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  • Does a single LACP channel over multiple switches increase redundancy?

    - by Sirch
    I am curious for opinions, findings, or evidence that having multiple interfaces bonded using LACP to ports in multiple switches can increase redundancy. Previously bonded interfaces have always been to a single switch, with a redundant channel to another port. Without getting into vendor specifics, my thought is that as this is a single LACP, the likelihood that an event or change could lead to a wide service outage. Without having the spare equipment or time to test this single channel over diverse switches, could anyone with a greater networking knowledge than myself, tell me if there a network side event that would bring down the network connectivity to a server that had created a bonded interface to two ports on separate switches? Does the use of bonded ethernet channels across multiple switches (that we are advised that we can use) from the server, provide both improved throughput (unquestionably), and improved redundancy (uncertain). Could/would network events such as switch failure, port migration, patching, recovery, etc, cause the channel for both server network interfaces to be unavailable? Thanks in advance.

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  • Apache Alias / VirtualHost run as different user

    - by inx
    I tried to create an alias or virtual host to run as different user. Well below is part of apache httpd.conf that doesn't work. Or, is it even possible? <VirtualHost blah:80> user DifferentUser group DifferentGroup ServerAdmin blah DocumentRoot blah ServerName blah ServerAlias blah ScriptAlias /cgi-bin/ blah DirectoryIndex index.html index.htm default.htm index.shtml index.php ErrorLog logs/blah-error_log CustomLog logs/blah-access_log common <Directory "/blah/"> Options Indexes FollowSymLinks MultiViews ExecCGI AllowOverride all Order Deny,Allow Deny from none Allow from all </Directory> </VirtualHost>

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  • Block (or only allow certian) incoming IP addresses on Verizon FIOS Actiontec Router

    - by jmlumpkin
    I opened a few ports to the outside of my home network so I can get into a few of my machines from outside. When checking some logs, I noticed that I was getting scanned on some ports from various other countries. I already moved my port forward to a non-standard port. I would like to be able to block specific IP's (or even subnets) from my Verizon FIOS router. There is a little bit of documentation online, but I can't find anything specific on how to do this. To start, I just want to block a specific IP. But if it is not to hard, I would also like to know how to possibly block a range of IPs. And with the inverse of this - is there a way to allow only certain IPs or range?

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  • How to use mod_proxy to let my index of Apache go to Tomcat ROOT and be able to browse my other Apache sites

    - by Dagvadorj
    I am trying to use my Tomcat application (deployed at ROOT) to be viewed from Apache port 80. To do this, I used mod_proxy, since mod_jk made me try harder. I used sth like this in httpd.conf: <location http://www.example.com> Order deny,allow Allow from all PassProxy http://localhost:8080/ PassProxyReverse http://localhost:8080/ </location> <Proxy *> Order deny,allow Allow from all </Proxy> And now I can not retrieve my previous sites on Apache, which was running prior to my configuration. How can I have both running?

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  • No input file specified with nginx

    - by user66700
    I'm getting "No input file specified." when I attempt to browse to the phpmyadmin domain, not sure what I'm doing wrong.. using both php-fpm and php-cgi, php-fpm is currently working another directory fine..Had to change the port number to 8888 since -fpm was already using 9000 http://pastebin.com/kdEckiL3 from nginx.conf: server { listen 80; server_name phpmyadmin.domain.com; access_log /home/fanboy/logs/phpmyadmin.access_log; error_log /home/fanboy/logs/phpmyadmin.error_log; location / { root /usr/share/phpmyadmin; index index.php; } location ~ \.php$ { fastcgi_pass 127.0.0.1:8888; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME /usr/share/phpmyadmin$fastcgi_script_name; include /usr/local/nginx/conf/fastcgi.conf; } }

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  • How do I make virtual host DirectoryIndex file appear in the url?

    - by Bob Flemming
    I have setup a virtual host which specifies a default file to load when the URL is called. The problem I have is that I need that default DirectoryIndex file to appear in the URL. So when I go to: www.mysite.co.uk, I want www.mysite.co.uk/app.php to appear in the URL. How can I achieve this using my virtual host configuration within my apache.conf file? Here is my current code: <VirtualHost *:80> ServerName *.mysite.co.uk DocumentRoot "/var/www/html/mysite/web/" DirectoryIndex app.php </VirtualHost>

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