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  • How to query a DHCP server to get the local DNS servers

    - by Dan Berlyoung
    I have a ClarkConnect (CentOS based) box running as my home router on a RR connection. I had the DNS servers set up to use Google's DNS server. I want to change them back to the local DNS servers but I can't find an obvious/easy way to get those address short of a) reconfiguring the router's network to DHCP them (would rather not interrupt everyone) or b) calling their tech support (kill me now!). Is there a command line tool/command I can use to query the DHCP server on the external NIC to see what DNS servers it would set me up with w/o munging my existing setup?

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  • APC and "apc.gc_ttl" :: How Low is Too Low?

    - by nojak
    I currently have my apc.gc_ttl set to 600 to help keep fragmentation down. Since apc.gc_ttl just sets the time on cache for garbage collection, I don't see any harm in keeping it this low. However, I'm new to APC, and have seen many configurations online that use a 3600 TTL, which seems quite long to me for garbage collection cache... Is 600 too low? Is 3600 too high? As I'm sure mileage varies on this setup, is there a good rule of thumb to follow?

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  • Steps to send patch to Launchpad

    - by Alois Mahdal
    With a Git/Github background and knowing very little about Bazaar VCS, I would like to occasionally report a bug to Launchpad and even send a patch. I'd like to do it in a "proper" way so that it's ready for merging or improvement while not getting in way. I can't seem to find a decent simple How-to suited for my needs. So what I did so far: I have created a Launchpad account, reported the bug, installed Bazaar and setup SSH keys etc. Now if it was Github, I'd fork the repo, clone the forked repo, create a sanely named branch and do the work, commit + push, create a pull request using Github WUI. But it's not Github, and both LP and Bazaar architectures seem quite different from their Github/Git cunterparts. So could a kind soul save me from drowning in tons of documents and complile a straightforward step path, mainly the second part? Possibly including relevant CLI commands when they are needed? Edit: It seems that I should clarify if I'm asking specifically about Ubuntu packages (whatever it means) or Launchpad packages. I don't really care much about distinction between Ubuntu packages and non-Ubuntu packages. Any software could be in Ubuntu today and out of it tomorrow, or vice-versa. The development is what matters much more than distribution. Ao I was assuming that not every single package distributed in Ubuntu is hosted on Launchpad, an "official" or "default" workflow for Launchpad exists (well if all devs can agree on using Bazaar, why couldn't most of them agree on a patching workflow?), so I'm asking about the Launchpad way, not the Ubuntu way. And I chose AU because since the intersection is vast, I guess it's pretty on topic here.

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  • Reverse proxy using hop and RDP

    - by Sergei
    I am trying to connect from Vista to XP using RDP via reverse proxy using putty and an intermidiate host. There are myriad articles on the internet how to do it using vnc, ssh servers, winsshd, etc, but I can't find anything that helps me in this specific case. What I have: Windows XP host behind the firewall - 'destination' linux host running ssh on the internet - 'intermediate' windows host behind the firewall - 'source' All I want to do is open reverse tunnel from destination to intermidiate and use this tunnel for connecting back from the source. That should be simple to setup, however I just cannot make it. This is what I do: On 'destination', open putty session, create tunnel to 'intermediate' using following settings: source port 3389, destination is 'source:33389', direction is local On 'source', open putty session, create tunnel to 'intermediate'using following settings: source port 33389, destination is 'destination:33389', direction is local Finally, on source, open termnal services client and connect it to localhost:33389.Unfortunately it seems like packets do go somewhere but eventually client times out. Am I totally misunderstanding the concept? Please help!

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  • Web Farm Framework - Missing IIS features

    - by Buginator
    I'm trying to install a web farm using Microsoft's Web Farm Framework 2.2. The server is Windows 2008 R2 with IIS 7.5. I followed a tutorial. Installed WFF from Web Platform Installer. However, I'm missing some key features in the "Server Farm" panel in IIS. This is how my setup looks like However, just like in the tutorial, I want it like this How can I enable ALL the things, like Load Balancer, Health Test, Server Affinity etc? Thanks. The tutorial I used was this: weblogs.asp.net/scottgu/archive/2010/09/08/introducing-the-microsoft-web-farm-framework.aspx

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  • Is it Secure to Grant Apache User Ownership of Directories & Files for Wordpress

    - by Oudin
    I'm currently setting up WordPress on an Ubuntu server 12 everything runs fine but there is an issue when it comes to automatically updating and uploading media via WP as Apache "www-data" user does not have permissions to write to the directories. "user1" has full permission All my directories have permissions of 0755 and files 644 my directories setup is as follows: /home/user1/public_html All WP files and directories are in "public_html" In order to work around the auto updating and uploading media I've granted Apache user ownership to the following directories sudo chown www-data:www-data wp-content -R sudo chown www-data:www-data wp-includes -R sudo chown www-data:www-data wp-admin -R I would like to know security wise how secure this is and if it is not secure what would be the best solution? That will allow me to keep all files and directories owned by user1 and still allow wp to be able to automatically update and uploading media

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  • 12-24 rack, 10-32 server thumbscrew. How to mount?

    - by JJ.
    We have just purchased a APC rack (model AR204A) with 12-24 threaded holes. We couldn't get a "square hole" model in time for our setup deadline. Unfortunately our rack servers (Lenovo RD240) appear to have 10-32 thumbscrews for securing the server to the rack. We've successfully mounted the server rails to the rack using 12-24 screws however the 10-32 thumbscrews in the server front won't "grab" the 12-24 holes in the rack, thus there is nothing to stop the server from sliding right off the rack if pushed from the back. The thumb screws on the server don't seem to be removable, so we can't simply use 12-24 screws instead. Any suggestions on how to work around this problem? Is there any way to "convert" a 12-24 hole to a 10-32 thread (or similar approach)? Thanks in advance.

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  • DNS Replication issue

    - by BillN
    We host the DNS for our domain. Two weeks ago, the developer requested that we setup a new zone 'dev.ourdomain.com' and place two host records in it my.dev.ourdomain.com and admin.dev.ourdomain.com. We added the zone to our DNS and added A records for the host. Now a week later, some DNS servers like google (8.8.8.8) and gtei (4.2.2.2) will resolve the hosts, but others like OpenDNS (208.67.222.222 ) and ATT Uverse (68.94.156.1) cannot resolve it. Any Ideas?

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  • test if master dns has trasnfered copt to slave

    - by su55
    Hello, I setup my master and slave using freebsd. im currently running the Bind 9.X version, so far everything is working successfully. Just one small problem. I cant get the master copy of my dns to transfer it to the slave server. i included transfer-allow {192.168.1.111;}; // this is the slave servers ip i ran the rndc reload command to check but i dont see the copy in the /etc/named/master/? Any help would be necessary and if you like the layout of my dns, I can provide that too.

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  • Strategy for hosting 700+ domains, each with static HTML site

    - by jonschlinkert
    I have a portfolio of more than 700 domain names, and ideally I'd like to put up a single-page HTML/CSS/JavaScript webpage for each domain. Is there a system/strategy/workflow that will allow me to: Automate the deployment of new websites, quickly and easily without having to manually initiate each new website in an admin panel. For instance, I've seen dropbox-based solutions that claim to make it simple to setup new websites on your dropbox account, but you still have to set each one up in an admin interface first. It would be so much easier to have a folder naming convention that allowed the user to easily clone/copy/duplicate sites inside their Dropbox App folder (https://www.dropbox.com/developers/blog/23) to create new ones. Sounds interesting, however... It's easy to managing CNAMEs on the registrar-side, is there a way to quickly associate CNAMEs with new websites, maybe gh-pages-style (https://help.github.com/articles/setting-up-a-custom-domain-with-pages)? With GitHub's gh-pages, all you have to do is drop a file called CNAME into your repo, with the domain name you want associated with the repo inside the file. gh-pages isn't a good solution for what I'm doing though unfortunately. I'm also a front-end developer, specializing in rapid web development and "front-end build systems", so I building and maintaining static assets for hundreds of sites is no problem. It's the hosting-side that I really struggle with. Any suggestions?

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  • Multiple VLANs on a single subnet

    - by mstaessen
    I would like to establish the setup shown below. The image is taken from (http://gcharriere.com/blog/?p=620) and explains how to set this up on a brocade device. I would like to use an ubuntu server to do the routing. Right now, the switch and the server/router are connected with a trunk and the server uses the vlan package, kernel module and (inner) subnets for routing. I would like that: no IP addresses get lost in the subnetting (outer subnet is /26, inner subnets are /28) I don't want the rigorous subdivision of my outer subnet. I want to assign a VLAN to any IP in the outer subnet. How do I need to configure my interfaces? What is the "ubuntu" translation of "ip follow ve"? Thanks!

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  • Running Android emulator inside a Virtualbox Vm

    - by sgargan
    I'm trying to setup a VM with a complete android development stack (SDK, Platforms, Eclipse etc) for a Hackathon. I'm having real trouble getting the emulator to start in the VM. I realize that the emulator is essentially a VM itself inside the Vbox VM and so is going to be slow, but it just hangs at the Android splash screen and never gets any further. Might there be something going on with the VM that is causing it to run so very slowly? Is there anything I can do to give the VM more CPU? I've tried setting the execution cap to 100% but it didn't help any. Anyone know what might be going on here, or have any ideas about how I might speed it up? Thanks Steve.

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  • Setting Linux UID on NFS volume from EMC NX4

    - by ethrbunny
    I have an EMC NX4 from which there are several CIFS shares with corresponding NFS mount points. The CIFS user ids seem fine but when viewed from Linux they are all 327xx numbers and can't be set from the file system. (IE CHOWN doesn't work - permission denied). On our other (older) EMC devices we used an MMC app to set the Linux UID for each user. I don't seem to have such an app on the 'Applications and Tools' CD for this new device. Is there some other method for setting these? Did I setup the system incorrectly?

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  • FreeBSD after motherboard replacement; should I have any concerns?

    - by cc
    So after three years my motherboard (Asus M2N-0MX) has died off. As I go shopping for i's replacement tomorrow I have a concern about the data that I currently have on the drives wtihin. I'm currently running BSD 6.2, and am wondering if there would be any concern with installing a new OS on that system, would it be better to jsut install the latest BSD version, and are their any pitfalls that I should watch for to make sure I don't end up losing 750gb's of data. The setup consists of the following(to the best of my knowledge): Pioneer DVD drive 3ware RAID card four 250gb SATA drives in RAID 5 config thanks to anyone that can offer some advice, or just to confirm if I am over thinking things.

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  • http server connectivity puzzle

    - by jpmartins
    I have been seeing some strange connection issue in the production environment. The setup has two IBM Http Server's (IHS) and a network IP load-balancer in front of them (round-robin). One instance the system is working fine, the next requests stop arriving at the IHS. Telnet directly to port 80 of the IHS is established sucessfully, but connection to the port 80 through the IP of the load-balancer fails! The puzzle comes next, the network admins say the load-balancer is working fine. When we finally reboot the IHS servers and request start flowing... The situation happened three times the last month and no obvious pattern was found. Any debug ideas?

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  • How to configure ubuntu ldap client to get password policies from server?

    - by Rafaeldv
    I have a ldap server on CentOS, 389-ds. I configured the client, ubuntu 12.04, to authenticate on that base and it works very well. But it don't gets the password policies from server. For example, if i set the policy to force user to change the password on first login, ubuntu ignores it and logs him in, always. How can i setup the client to get the policies? Here are the client files: /etc/nsswitch.conf passwd: files ldap group: files ldap shadow: files ldap hosts: files mdns4_minimal [NOTFOUND=return] dns mdns4 networks: files protocols: db files services: db files ethers: db files rpc: db files netgroup: nis sudoers: ldap files common-auth auth [success=2 default=ignore] pam_unix.so nullok_secure auth [success=1 default=ignore] pam_ldap.so use_first_pass auth requisite pam_deny.so auth required pam_permit.so auth optional pam_cap.so common-account account [success=2 new_authtok_reqd=done default=ignore] pam_unix.so account [success=1 default=ignore] pam_ldap.so account requisite pam_deny.so account required pam_permit.so common-password password requisite pam_cracklib.so retry=3 minlen=8 difok=3 password [success=2 default=ignore] pam_unix.so obscure use_authtok try_first_pass sha512 password [success=1 user_unknown=ignore default=die] pam_ldap.so use_authtok try_first_pass password requisite pam_deny.so password required pam_permit.so password optional pam_gnome_keyring.so common-session session [default=1] pam_permit.so session requisite pam_deny.so session required pam_permit.so session optional pam_umask.so session required pam_unix.so session optional pam_ldap.so session optional pam_ck_connector.so nox11 session optional pam_mkhomedir.so skel=/etc/skel umask=0022 /etc/ldap.conf base dc=a,dc=b,dc=c uri ldaps://a.b.c/ ldap_version 3 rootbinddn cn=directory manager pam_password md5 sudoers_base ou=SUDOers,dc=a,dc=b,dc=c pam_lookup_policy yes pam_check_host_attr yes nss_initgroups_ignoreusers avahi,avahi-autoipd,backup,bin,colord,daemon,games,gnats,hplip,irc,kernoops,libuuid,lightdm,list,lp,mail,man,messagebus,news,proxy,pulse,root,rtkit,saned,speech-dispatcher,sshd,sync,sys,syslog,usbmux,uucp,whoopsie,www-data /etc/ldap/ldap.conf BASE dc=a,dc=b,dc=c URI ldaps://a.b.c/ ssl on use_sasl no tls_checkpeer no sudoers_base ou=SUDOers,dc=a,dc=b,dc=c sudoers_debug 2 pam_lookup_policy yes pam_check_host_attr yes pam_lookup_policy yes pam_check_host_attr yes TLS_CACERT /etc/ssl/certs/ca-certificates.crt TLS_REQCERT never

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  • OpenLdap 2.4 on centos 6 doesn't listen on port 636

    - by Oliver Henriot
    I have an openldap 2.4 server on centos 6 whose confg I copied from those I have running under openldap 2.3 servers on centos 5 machines. On openldap 2.3, specifying TLSCACertificateFile, TLSCertificateFile and TLSCertificateKeyFile with correct values makes the server listen on port 636. This is not the case on the openldap 2.4 setup. I have configured it with loglevel -1 but I have not seen any clue as to what might be wrong and reading the openldap 2.4 manual doesn't indicate if any of the other TLS related parameters are now mandatory. I don't think so though because if I run the service manually, using "# /usr/sbin/slapd -u ldap -h "ldap:/// ldaps:/// ldapi:///"", the server does listen on port 636 and I can query it using "ldapsearch -H ldaps://myserver:636". Is there something I am missing to get the server to listen on port 636 without having to always launch it manually? Is this linked to centos 6 or openldap 2.4? Thank you. Cheers,

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  • once VPNed into pfSense, unable to hit the public URLs of my websites - they are routed to the pfSense box

    - by Sean
    I have a pfSense box setup as the firewall/router/VPN appliance at my colo. Once I VPN into the colo (either pptp or openvpn, pptp preferred due to multiple clients and ease of configuration), I am able to hit all my servers by their private 10.10.10.x ip and am able to browse the public internet without issue. When I try and hit the URL of a domain hosted by one of my servers, I am prompted for credentials. If I login using the pfSense credentials, I'm connected to pfSense as if I'd used it's internal IP. If I hack my hosts file to point url - server private IP it works fine, but this is obviously not a good solution. To recap: not connected to VPN - www.myurl.com works connected to VPN - www.myurl.com never makes it to the correct server, but is sent only to the pfSense box I'm sure it's something small that I've missed in the pfSense config.

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  • How to show disconnect network drives

    - by Jake
    Windows 7 and Vista laptops in my company domain has network drives set up by Win2k8 Server GPO. Normally, when the laptops has ethernet cable plugged in before boot, the network drives connect and appear as expected at the end of startup sequence. However, when the laptop has ethernet cable unplugged, the network drives are not connected, which is fine, but the disconnected icons disappear as well. i.e. the drives are not set up. At the end of the startup sequence, upon reaching desktop, the wireless adapters will connect to the network and the laptop will be able to find the network drive. Hence I want the drives to be setup nonetheless, so that the next attempt to connect, say, via a desktop shortcut, will reestablish the network drive connection. How can this be done?

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  • design in agile process

    - by ying
    Recently I had an interview with dev team in a company. The team uses agile + TDD. The code exercise implements a video rental store which generates statement to calc total rental fee for each type of video (new release, children, etc) for a customer. The existing code use object like: Statement to generate statement and calc fee where big switch statement sits to use enum to determine how to calc rental fee customer holds a list of rentals movie base class and derived class for each type of movie (NEW, CHILDREN, ACTION, etc) The code originally doesn't compile as the owner was assumed to be hit by a bus. So here is what I did: outlined the improvement over object model to have better responsibility for each class. use strategy pattern to replace switch statement and weave them in config But the team says it's waste of time because there is no requirement for it and UAT test suite works and is the only guideline goes into architecture decision. The underlying story is just to get pricing feature out and not saying anything about how to do it. So the discussion is focused on why should time be spent on refactor the switch statement. In my understanding, agile methodology doesn't mean zero design upfront and such code smell should be avoided at the beginning. Also any unit/UAT test suite won't detect such code smell, otherwise sonar, findbugs won't exist. Here I want to ask: is there such a thing called agile design in the agile methodology? Just like agile documentation. how to define agile design upfront? how to know enough is enough? In my understanding, ballpark architecture and data contract among components should be defined before/when starting project, not the details. Am I right? anyone can explain what the team is really looking for in this kind of setup? is it design aspect or agile aspect? how to implement minimum viable product concept in the agile process in the real world project? Is it must that you feel embarrassed to be MVP?

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  • Getting Synergy+ to work with Windows 7 64bit and Windows XP 32bit?

    - by john crisp
    My Windows XP box is Dell 4550 dimension. Windows 7 box is Home Premium. Synergy + installs fine on the Windows 7box, but using Windows xp as the client, it won't work? Do I need to disconnect the vga connection from my monitor and control entirely from the win7 dvi connection? In setting up ( links ) on Windows 7 as the server, I have NO way of inputing info? The setup on the Windows xp box is simple and does so OK, but I can't connect to the Windows xp box! It must be the vga connection on the Windows XP box. In order to use both machines, I have to turn one off and the other on. Hence-the VGA is needed on Windows XP. Any info/help most appreciated.

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  • does the *physical* order/location of drives in a mdadm-managed RAID-10 array matter?

    - by locuse
    i've setup a 4-drive RAID-10 array using mdadm-managed, software-raid on an x86_64 box. it'd up & running and works as expected, cat /proc/mdstat md127 : active raid10 sdc2[2] sdd2[3] sda2[0] sdb2[1] 1951397888 blocks super 1.2 512K chunks 2 far-copies [4/4] [UUUU] bitmap: 9/466 pages [36KB], 2048KB chunk atm the four SATA drives are physically plugged into the motherboard's 1st four SATA ports. i'd like to gather the necessary/complete info for catastrophic recovery. reading starting here, http://neil.brown.name/blog, and the mailing list, i'm not yet completely confident i have it right. i understand 'drive order matters'. is that logical, &/or physical order that matters? if i unplugged the four drives in this array, and plugged them each back into different ports on the motherboard or a pci card, as long as i've changed nothing in software config, will the array correctly auto-re-assemble?

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  • Install wireless router with cable modem - need authentication server?

    - by Paul
    I've bought a wireless router which I'm installing with a Telstra BigPond cable modem for a friend. As part of the setup I've got to a screen requesting username / password / authentication server for the cable modem They have contacted Telstra who supply the username / password and say that is all they need. They dont know anything about an authentication server. There are a couple of answers up on Whirlpool forum found through google but those answers are 4 years old. http://forums.whirlpool.net.au/forum-replies-archive.cfm/475258.html http://forums.whirlpool.net.au/forum-replies-archive.cfm/479615.html I havent tried them yet as I hoped to get actual answers before trundling over to my friends house again. Can anyone suggest, How to get information from Telstra support? (I realise this question maybe impossible to answer) What is the authentication server for Telstra BigPond for a user in Sydney Australia Are those whirlpool forum answers still valid? I guess if I dont get anything more here I'll try what it says on whirlpool and see what happens.

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  • Perl script rendered in browser as code through symlink - fine when accessed directly

    - by John Dittmar
    I have a Rails 4 app that has some views that post to Perl cgi scripts. The perl scripts are accessed via a symbolic link to a folder called "cgi-bin". When I navigate to a perl script through the symbolic link they are rendered as text instead of executed (ie: localhost:3000/cgi-bin/test.cgi), however when I access them directly they execute without issue (ie. localhost/path/to/cgi-bin/test.cgi). I am using apache2 on os x. In the directory localhost/path/to/ I have an .htaccess file that contains the following: # General Apache options AddHandler fastcgi-script .fcgi AddHandler cgi-script .cgi Options +FollowSymLinks +ExecCGI I have the exact same lines in the .htaccess file that I have in localhost:3000/ I have also uncommented the AllowOverride all in httpd.conf. The are no errors in apache's error log. When I access the direct link to test.cgi a new line is appended to apache's access log, when I access the script through the symbolic link (and it is rendered as text), there is no line appended to the access log. Any idea why this error occurs? This setup worked fine in a previous version of rails of OS X, but recently I upgraded to Mavericks and figured I should update the Rails application to v4.0 as well.

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  • Tracking Outgoing Links With Google Analytics Events

    - by the_archer
    I've been trying to track clicks on external links on my website using the events tracking method. So I've got my Google Analytics code setup before body ends as shown below (note: quotes have been entitied by blogger, but it works fine): <script type='text/javascript'> var _gaq = _gaq || []; _gaq.push([&#39;_setAccount&#39;, &#39;UA-XXXXXXX-X#39;]); _gaq.push([&#39;_trackPageview&#39;]); (function() { var ga = document.createElement(&#39;script&#39;); ga.type = &#39;text/javascript&#39;; ga.async = true; ga.src = (&#39;https:&#39; == document.location.protocol ? &#39;https://ssl&#39; : &#39;http://www&#39;) + &#39;.google-analytics.com/ga.js&#39;; var s = document.getElementsByTagName(&#39;script&#39;)[0]; s.parentNode.insertBefore(ga, s); })(); </script> Now I wanted to track a link on the addthis.com follow widget. So there is a link of the type below to which following instructions from here I added the onclick event. <a addthis:url='http://feeds.feedburner.com/myfeedburnerlurl' onClick="_gaq.push(['_trackEvent', 'Subscription Clicks', 'RSS']);" class='addthis_button_rss_follow'/> I clicked on it a couple of times, left it for over a day now, but nothing shows up in google analytics events. It just says zero events. Here's a screenshot of the events page on GA: Could anybody help me? Am I doing anything wrong?

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