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  • Proper mechanism for sending PHP errors to the client

    - by Chris
    Greetings, I was trying to discover a proper way to send captured errors or business logic exceptions to the client in an Ajax-PHP system. In my case, the browser needs to react differently depending on whether a request was successful or not. However in all the examples I've found, only a simple string is reported back to the browser in both cases. Eg: if (something worked) echo "Success!"; else echo "ERROR: that failed"; So when the browser gets back the Ajax response, the only way to know if an error occurred would be to parse the string (looking for 'error' perhaps). This seems clunky. Is there a better/proper way to send back the Ajax response & notify the browser of an error? Thank you.

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  • Windows 7 Reading Proper Disk Usage Statistics on Mounted Volumes

    - by Troy Perkins
    I'm running windows 7 with 2 x 1.5 TBYTE Drives. The second internal drive is setup as a mounted volume as C:\Archives Clicking computer icon in windows explorer, it only shows capacity stats for C: and Not C:\Archives Also, the usage stats that do show for C: show to be 100% capacity red - yet the system runs fine. No warnings. Can someone explain this? I do have a lot of stuff on the c: drive, but I'm sure its not 1.5 TB worth and C:\Archives hardly has anything it. Thanks! Troy

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  • Proper application shutdown before windows xp auto shutdown

    - by vashman
    I frequently leave the computer on playing a movie or downloading a file while I go to bed. I do use the 'shutdown computer when finished' feature of KMPlayer or getright or uTorrent or whatever program I am using. This method effectively shuts down the computer, but the problem is that there are some applications that seem to exit forcefully when doing this kind of shutdown, this being clearly reflected in winamp not saving the current playlist and config, messenger not saving the chat logs, etc. My goal here would be to have automatically close properly all applications when the auto/scheduled program triggers it. I am looking for some Windows shutdown mode/setting that does application closing like the user would do. I am not expecting to auto-click on save dialogs prompts, if this is needed I will do it before leaving the computer on for auto shutdown.

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  • TinyDNS and proper settings for SPF records

    - by Teddy
    I've inherited a TinyDNS configuration that have following entries for SPF: @domain.com:x.x.x.3:a::86400 @domain.com:x.x.x.103:c:10:86400 =domain.com:x.x.x.3:86400 =mail.domain.com:x.x.x.3:86400 =mail.domain.com:x.x.x.103:86400 'domain.com:v=spf1 ip4\072x.x.x.3 ip4\07231.130.96.103 ptr\072mail.domain.com +mx a -all:3600 'mail.domain.com:v=spf1 ip4\072x.x.x.3 ip4\072x.x.x.103 ptr\072mail.domain.com +mx a -all:3600 'a.mx.domain.com:v=spf1 ip4\072x.x.x.3 ip4\072x.x.x.103 ptr\072mail.domain.com +mx a -all:3600 This is the result from http://www.kitterman.com/spf/validate.html SPF record lookup and validation for: domain.com SPF records are primarily published in DNS as TXT records. The TXT records found for your domain are: v=spf1 ip4:x.x.x.3 ip4:x.x.x.103 ptr:mail.domain.com +mx a -all SPF records should also be published in DNS as type SPF records. No type SPF records found. Checking to see if there is a valid SPF record. Found v=spf1 record for domain.com: v=spf1 ip4:x.x.x.3 ip4:x.x.x.103 ptr:mail.domain.com +mx a -all evaluating... SPF record passed validation test with pySPF (Python SPF library)! I'm struggling with this from yesterday and cant figure it why this validator returns No type SPF records found. I see in BIND we cand define SPF type record with example.com. IN SPF "v=spf1 a -all", but in TinyDNS we only have TXT records that we set for SPF, maybe this is a problem?

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  • Proper umask on linux webservers?

    - by Xeoncross
    Most VPS have a team of 1+ user(s) that don't do anything but configure the system and work on the web site and/or database. I would assume all the team members would be a group like "developers" so they could all work on files in the web root as needed. With this in mind, would umask 007 be a much better setting than the default of 022? After all, there shouldn't be any "other/world" users since this machines primary purpose is to serve web pages. All the developers have access and there aren't any "guests" logging in...

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  • Office 2003 won't install with proper CD KEY

    - by MadBoy
    I wanted to reinstall Office 2003 Pro. I retrieved the key with NirSoft ProduKey, confirmed with Jelly Bean Windows Key Finder and the key is the same. I've tried 3 different Office 2003 PRO CD's and it still won't install because it's saying key is bad, i even tried with different key from other computer and it also won't install. Anyone can suggest some workaround?

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  • What is the proper definition of software?

    - by studiohack23
    I sometimes see web based applications (eg Avairy, Google Docs) labeled as "software". Is this the true meaning of software? Isn't it supposed to mean applications that run natively on an OS, such as Photoshop or Outlook? Or does it mean ALL applications whether native or web-based?

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  • Proper Settings for SQL Server 2005 Profiler User Auditing

    - by Irwin M. Fletcher
    I have been tasked with creating a catalog of all users\applications that access a particular database at our company. The issue is that we have no idea what users are using the database and what they are doing (what queries they are using or stored procedures). I would like to run this over a few days, but want to minimize the amount of information that is returned in the trace, could anyone please advise me on what the minimal settings for Profiler are for this.

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  • proper concurrent users estimation case studies

    - by golemwashere
    I've been asked to size a web architecture for an excessive number of concurrent users ( hundreds of thousands ). I'm having a hard time convincing these people that unless you are in the top 5 of your country websites it's quite hard to hit those numbers. Can anyone provide some real world case studies providing stats for total / concurrent users explaining what is the usual ratio between total vs concurrent?

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  • Proper network configuration for a KVM guest to be on the same networks at the host

    - by Steve Madsen
    I am running a Debian Linux server on Lenny. Within it, I am running another Lenny instance using KVM. Both servers are externally available, with public IPs, as well as a second interface with private IPs for the LAN. Everything works fine, except the VM sees all network traffic as originating from the host server. I suspect this might have something to do with the iptables-based firewall I'm running on the host. What I'd like to figure out is: how to I properly configure the host's networking such that all of these requirements are met? Both host and VMs have 2 network interfaces (public and private). Both host and VMs can be independently firewalled. Ideally, VM traffic does not have to traverse the host firewall. VMs see real remote IP addresses, not the host's. Currently, the host's network interfaces are configured as bridges. eth0 and eth1 do not have IP addresses assigned to them, but br0 and br1 do. /etc/network/interfaces on the host: # The primary network interface auto br1 iface br1 inet static address 24.123.138.34 netmask 255.255.255.248 network 24.123.138.32 broadcast 24.123.138.39 gateway 24.123.138.33 bridge_ports eth1 bridge_stp off auto br1:0 iface br1:0 inet static address 24.123.138.36 netmask 255.255.255.248 network 24.123.138.32 broadcast 24.123.138.39 # Internal network auto br0 iface br0 inet static address 192.168.1.1 netmask 255.255.255.0 network 192.168.1.0 broadcast 192.168.1.255 bridge_ports eth0 bridge_stp off This is the libvirt/qemu configuration file for the VM: <domain type='kvm'> <name>apps</name> <uuid>636b6620-0949-bc88-3197-37153b88772e</uuid> <memory>393216</memory> <currentMemory>393216</currentMemory> <vcpu>1</vcpu> <os> <type arch='i686' machine='pc'>hvm</type> <boot dev='hd'/> </os> <features> <acpi/> <apic/> <pae/> </features> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/bin/kvm</emulator> <disk type='file' device='cdrom'> <target dev='hdc' bus='ide'/> <readonly/> </disk> <disk type='file' device='disk'> <source file='/raid/kvm-images/apps.qcow2'/> <target dev='vda' bus='virtio'/> </disk> <interface type='bridge'> <mac address='54:52:00:27:5e:02'/> <source bridge='br0'/> <model type='virtio'/> </interface> <interface type='bridge'> <mac address='54:52:00:40:cc:7f'/> <source bridge='br1'/> <model type='virtio'/> </interface> <serial type='pty'> <target port='0'/> </serial> <console type='pty'> <target port='0'/> </console> <input type='mouse' bus='ps2'/> <graphics type='vnc' port='-1' autoport='yes' keymap='en-us'/> </devices> </domain> Along with the rest of my firewall rules, the firewalling script includes this command to pass packets destined for a KVM guest: # Allow bridged packets to pass (for KVM guests). iptables -A FORWARD -m physdev --physdev-is-bridged -j ACCEPT (Not applicable to this question, but a side-effect of my bridging configuration appears to be that I can't ever shut down cleanly. The kernel eventually tells me "unregister_netdevice: waiting for br1 to become free" and I have to hard reset the system. Maybe a sign I've done something dumb?)

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  • Proper use of disk to disk to tape backup using de-duplication and LTO5

    - by Michael
    I currently have ~12TB of data for a full disk to tape (LTO3) backup. Needless to say, it's now requiring over 16 tapes so I'm looking at other solutions. Here is what I've come up with. I'd like to hear the community's thoughts. Server for Disk-to-Disk BackupExec 2010 Using De-duplication Technology 20+TB worth of SATA drives LTO5 robotic library connected via SAS 1Gbps NIC connected to network What I envision is doing a full backup of my entire network which will initially take a long time over the 1Gbps NIC but once the de-duplication kicks in backups should be quick. I will then use the LTO5 to make disk to tape backups and archive those accordingly. What does everyone think? Any faster way of doing the initial full backup over the 1Gbps NIC? What will be my pain points? Is there a better way of doing what I'm trying to achieve?

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  • creating proper vpn tunnel, when both LANs have the same addressing

    - by meta
    I was following this tutorial http://wiki.debian.org/OpenVPN#TLS-enabled_VPN and this one http://users.telenet.be/mydotcom/howto/linux/openvpn.htm to create openvpn connection to my remote LAN. But both examples assumed that both LANs have different addresses (ie 192.168.10.0/24 and 192.168.20.0/24, check out this image i.stack.imgur.com/2eUSm.png). Unfortunately in my case both local and remote lan have 192.168.1.0/24 addresses. I am able to connect directly on the openvpn server (I can ping it and log in with ssh), but I can't see other devices on the remote LAN (not mentioning accessing them via browser which was the point from the first place). And don't know if the addressing issue may be the reason of that? If not - how to define routes, so I could ping other devices in remote LAN?

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  • Proper management of PGPool II

    - by Cathy
    Currently I have a site, with one Postgres database server. It is just for a select number of users (less than ten) but it needs the maximum uptime possible. I would like some kind of automatic failover for the database. So I was thinking something like: one server running PGPool II, one running Postgres as master, one running Postgres as slave. But then, if wherever PGPool is running suddenly loses power (or dies, or whatever), there's a single point of failure and the whole thing goes down. Is there a solution, assuming that outsourcing this to someone else isn't possible?

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  • Getting ROBOCOPY to return a "proper" exit code?

    - by Lasse V. Karlsen
    Is it possible to ask ROBOCOPY to exit with an exit code that indicates success or failure? I am using ROBOCOPY as part of my TeamCity build configurations, and having to add a step to just silence the exit code from ROBOCOPY seems silly to me. Basically, I have added this: EXIT /B 0 to the script that is being run. However, this of course masks any real problems that ROBOCOPY would return. Basically, I would like to have exit codes of 0 for SUCCESS and non-zero for FAILURE instead of the bit-mask that ROBOCOPY returns now. Or, if I can't have that, is there a simple sequence of batch commands that would translate the bit-mask of ROBOCOPY to a similar value?

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  • Drupal + Zen - not proper layout/no graphics

    - by Luma
    Hello, I installed Drupal (both using Fantastico, then started over from scratch) and Drupal works great except when I setup the Zen theme (following the instructions on the website and in the readme-first.txt) the theme does not show up properly. it has no graphics except for the tiny drupal logo way at the bottom. the rest is text. I have uploaded the theme to the /public_html/sites/all/themes folder and it does show up in themes in the administer section so I select enable and default. permissions on this folder are 755. any ideas? I checked the Drupal forums and someone is having the same problem but no one replied (this was in April) so I figured I would have a better shot on this awesome website. thanks. Luma

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  • Proper High-End Video Editing Software for Windows?

    - by Michael Stum
    I'm wondering if anyone here has experience with Prosumer/High-End Video Editing? So far I use Adobe Premiere CS4, but it is an unstable and buggy mess sadly. This could be partially caused by the fact that my input material isn't always pure HDV/AVCHD but sometimes it can be DivX or some already pre-processed video. The one thing I liked about Adobe is though that with After Effects and Encore, they have a good overall toolset, but if it's sub-par then it's no good. Luckily it is already paid for and was worth it's money overall, so It's not a complete waste of money. But are there alternatives? Especially After Effects is quite unique, and the closest thing I found is Apple's Final Cut Studio which includes Motion and DVD Studio. The two downsides is that it requires a Mac and that it doesn't support BluRay though. Any hints for Windows? Sony Vegas might be something I'll look at, but I'm guessing I have to keep using After Effects for some serious compositing/VFX?

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  • Proper Imaging Procedures to Restore and Deploy Image with Separate System Reserved Partition

    - by alharaka
    UPDATE: As per my experience here, no one responded. If I do not hear back from TechNet forum members about it, I will post a bounty here, if it makes a difference. I have banged my head against a wall for what seems like all week. I am going to explain my simple procedure, and how none of it, absolutely none, seems to work afterword despite few alternatives and everyone on the internet telling assuming this is how to do it. Diskpart Commands to Create FS Structure REM Select the disk targeted for deployment. REM REM NOTE: Usually disk 0, but drive failure can make it external USB REM media. This will erase the drive regardless! select disk 0 REM Remove previous formatting. clean REM Create System Reserved partition bootloader and files. create partition primary size=100 REM Format the volume format fs=ntfs label="System Reserved" quick override noerr REM Assign the System Reserved partition the D: mount for now assign letter=C REM The main system partition, size not specified to occupy whole drive. create partition primary REM Format the volume format fs=ntfs quick override noerr REM Assign the OS partition the D: mount for now assign letter=D REM Make this the active/bootable partition. sel disk 0 sel partition 1 active REM Close out the diskpart session. exit Now, I thought this was madness, but it turns out the System Reserved partition and standard "System Partition" (C:, commonly both the boot and system volumes where you find the Windows directory AND the bootmgr/ntldr hardware files, this is where Windows 7 diverges) as mounted in the Windows PE session where I run these commands do not matter. See reference here. Since this needs to be BitLocker-ready, enter this crappy System Reserved partition that is separate 100MB of awesome that goes before the regular boot volume. I do this, then I proceed to the next step. Deploy System Reserved and Normal System Images REM C is still the "System Reserved Partition", and the image is just like it sounds. imagex /apply G:\images\systemreserved.wim 1 C: REM D is now what will be the C: system partition on reboot, supposedly. imagex /apply G:\images\testimage.wim 1 D: Reboot the system Now, the images I just captured should look good. This is not even sysprepped, but reapplying the same fscking image I prepared on the same reference workstation hours before. Problem is I get 0xc000000e could not detect the accessible boot device \Windows\system32\winload.exe or different kinds of nonsense revolving around being able to find the boot volume with all the right files. I try different variations of things, now none of them work. I tried repairs with bcdboot, with a fresh System Reserved partition or not, bootrec, and maually editing the damn BCD store with bcdedit. I tried finalizing the above process with and without bootsect /nt60 C: /force. I need to wrap up and automate this procedure. What am I doing wrong that does not make the image happy, but really just miserable.

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  • postfix header_checks using regexp proper setup

    - by Philip Rhee
    I just can't seem to figure out why header_checks are not being evaluated. I'm on Ubuntu 12.04, postfix 2.7, dovecote, spamassasin, clamav, amavis. I add following line to /etc/postfix/main.cf : header_checks = regexp:/etc/postfix/header_checks And here is header_checks : /From: .*/ REPLACE From: [email protected] To test out regexp : #postmap -q "From: <werwe>" regexp:/etc/postfix/header_checks which evaluates correctly and give me return output of : REPLACE From: [email protected] However, when I try to send email from commandline or from php webpage, postfix will not replace the From header. I'm stumped.

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  • Proper way to re-image Windows 7?

    - by Alec
    I had a driver completely fail on me so I have to restore my computer from a system image backup. I used an installation DVD to run the Re-Image utility on there, but after 8 hours of "preparing the image" to be restored, it began restoring to my hard drive. After 12 hours there, it was 5-8% complete. I figured I must have done something wrong or it started doing something wrong. So I installed a fresh copy of Win-7 and ran the utility from there. It's going at the same snail's pace. I still think I must be doing something incorrectly - I don't see how it could possibly take so long, I could probably manually flip the on my hard drive and be done before that utility. Am I doing this correctly or is there something else I should be doing? Edit: In case my hardware is relevant: Win 7 64 bit Core i7 8 GB Ram 640GB Internal 1TB External connected via eSATA I had approximately 400GB of data on my computer before it crashed.

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  • What's the proper format for an SPF record?

    - by deltanovember
    Querying my domain I get: The TXT records found for your domain are: v=spf1 ip4:50.22.72.198 a mx:wordswithfriends.net ~all So superficially it appears OK. However I also get the following message SPF records should also be published in DNS as type SPF records. No type SPF records found. I want to make sure things are absolutely airtight. So in addition to TXT records I also want a pure SPF record. However I cannot figure out the format. Placing the same text in an SPF record does not seem to work. Edit: At the moment I have a TXT record but not SPF record. When I cut and paste from TXT straight to SPF I get some type of crazy recursive DNS error so quickly deleted the SPF. I just want to know the correct format. Copying v=spf1 ip4:50.22.72.198 a mx:wordswithfriends.net ~all Straight into an SPF record doesn't work.

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  • Set proper rights for sshfs mountpoint so it can be shared with samba

    - by CS01
    I have a domain hoster that provides access via SSH. My platforms are: Gentoo 2.6.36-r5 Windows (XP/Vista/7) I work on my Windows, I use Gentoo to do all the magic Windows can't do. Therefore I use sshfs to mount the remote public directory for my domain to /mnt/mydomain.com. Authentication is done via keys, so lazy me don't have to type in my password every now and then. Since I do my coding on Windows, and I don't want to upload/download the changed files all the time, I want to access this /mnt/mydomain.com via a samba share. So I shared /mnt in samba, all mounts except mydomain.com is listed on my Windows Explorer. My theories are: sshfs does not set the mountpoint uid/gid to something that samba expects samba does not know that it has to include the uid/gid that /mnt/mydomain.com has been set. All above is wrong, and I don't know. Here are configs and output from console, need anything else just let me know. Also no errors or warnings that I take notice of being relevant to this issue, but I might be wrong. gentoo ~ # ls -lah /mnt total 20K drwxr-xr-x 9 root root 4.0K Mar 26 16:15 . drwxr-xr-x 18 root root 4.0K Mar 26 2011 .. -rw-r--r-- 1 root root 0 Feb 1 16:12 .keep drwxr-xr-x 1 root root 0 Mar 18 12:09 buffer drwxr-s--x 1 68591 68591 4.0K Feb 16 15:43 mydomain.com drwx------ 2 root root 4.0K Feb 1 16:12 cdrom drwx------ 2 root root 4.0K Feb 1 16:12 floppy drwxr-xr-x 1 root root 0 Sep 1 2009 services drwxr-xr-x 1 root root 0 Feb 10 15:08 www /etc/samba/smb.conf [mnt] comment = Mount points writable = yes writeable = yes browseable = yes browsable = yes path = /mnt /etc/fstab sshfs#[email protected]:/home/to/pub/dir/ /mnt/mydomain.com/ fuse comment=sshfs,noauto,users,exec,uid=0,gid=0,allow_other,reconnect,follow_symlinks,transform_symlinks,idmap=none,SSHOPT=HostBasedAuthentication 0 0 For an easier read: [email protected] /home/to/pub/dir/ /mnt/mydomain.com/ options: comment=sshfs noauto users exec uid=0 gid=0 allow_other reconnect follow_symlinks transform_symlinks idmap=none SSHOPT=HostBasedAuthentication Help!

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  • Set proper rights for sshfs mountpoint so it can be shared with samba

    - by CS01
    I have a domain hoster that provides access via SSH. My platforms are: Gentoo 2.6.36-r5 Windows (XP/Vista/7) I work on my Windows, I use Gentoo to do all the magic Windows can't do. Therefore I use sshfs to mount the remote public directory for my domain to /mnt/mydomain.com. Authentication is done via keys, so lazy me don't have to type in my password every now and then. Since I do my coding on Windows, and I don't want to upload/download the changed files all the time, I want to access this /mnt/mydomain.com via a samba share. So I shared /mnt in samba, all mounts except mydomain.com is listed on my Windows Explorer. My theories are: sshfs does not set the mountpoint uid/gid to something that samba expects samba does not know that it has to include the uid/gid that /mnt/mydomain.com has been set. All above is wrong, and I don't know. Here are configs and output from console, need anything else just let me know. Also no errors or warnings that I take notice of being relevant to this issue, but I might be wrong. gentoo ~ # ls -lah /mnt total 20K drwxr-xr-x 9 root root 4.0K Mar 26 16:15 . drwxr-xr-x 18 root root 4.0K Mar 26 2011 .. -rw-r--r-- 1 root root 0 Feb 1 16:12 .keep drwxr-xr-x 1 root root 0 Mar 18 12:09 buffer drwxr-s--x 1 68591 68591 4.0K Feb 16 15:43 mydomain.com drwx------ 2 root root 4.0K Feb 1 16:12 cdrom drwx------ 2 root root 4.0K Feb 1 16:12 floppy drwxr-xr-x 1 root root 0 Sep 1 2009 services drwxr-xr-x 1 root root 0 Feb 10 15:08 www /etc/samba/smb.conf [mnt] comment = Mount points writable = yes writeable = yes browseable = yes browsable = yes path = /mnt /etc/fstab sshfs#[email protected]:/home/to/pub/dir/ /mnt/mydomain.com/ fuse comment=sshfs,noauto,users,exec,uid=0,gid=0,allow_other,reconnect,follow_symlinks,transform_symlinks,idmap=none,SSHOPT=HostBasedAuthentication 0 0 For an easier read: [email protected] /home/to/pub/dir/ /mnt/mydomain.com/ options: comment=sshfs noauto users exec uid=0 gid=0 allow_other reconnect follow_symlinks transform_symlinks idmap=none SSHOPT=HostBasedAuthentication Help!

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  • Nginx : Proper use of limit_req_zone and limit_req

    - by xperator
    I have 2 website running on VPS. Their purpose is sharing music files and publishing news. Both of them use wordpress. What I am trying is that I want to prevent little hackers from flooding the webserver and putting stress on the server to make it crash. The problem is that after using limit_req_zone and limit_req my website became very slow. Browsing Wordpress control panel takes a long long time. I tried changing values but it didn't improve much. I guess the problem is Wordpress because it's the only script I am using on both front and back end. Here is the last setting which seems to be more responsive than others : limit_req_zone $binary_remote_addr zone=flood:5m rate=10r/m; location ~ \.php$ { limit_req zone=flood burst=100 nodelay; } What are the optimal values that should be used in my case (wp) ? I want the website have it's normal behavior, On the other hand stopping lifeless people from flooding. Another question, Is it safe and enough to use limit_req only on php files ?

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