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  • Apache: VirtualHost *:80 -- mixing * ports and non-* ports with a NameVirtualHost address is not sup

    - by user45761
    Hi, when i add the line below to /etc/apache2/apache2.conf I get the error belower when i restart apache: Include /usr/share/doc/apache2.2-common/examples/apache2/extra/httpd-vhosts.conf [Mon Jun 14 12:16:47 2010] [error] VirtualHost *:80 -- mixing * ports and non-* ports with a NameVirtualHost address is not supported, proceeding with undefined results [Mon Jun 14 12:16:47 2010] [warn] NameVirtualHost *:80 has no VirtualHosts This is my httpd-vhosts.conf file: # # Use name-based virtual hosting. # NameVirtualHost *:80 # # VirtualHost example: # Almost any Apache directive may go into a VirtualHost container. # The first VirtualHost section is used for all requests that do not # match a ServerName or ServerAlias in any <VirtualHost> block. <VirtualHost *:80> ServerName tirengarfio.com DocumentRoot /var/www/rs3 <Directory /var/www/rs3> AllowOverride All Options MultiViews Indexes SymLinksIfOwnerMatch Allow from All </Directory> Alias /sf /var/www/rs3/lib/vendor/symfony/data/web/sf <Directory "/var/www/rs3/lib/vendor/symfony/data/web/sf"> AllowOverride All Allow from All </Directory> </VirtualHost> Any idea? Regards Javi

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  • Why is my mouse randomly deselecting and unclicking?

    - by Coldblackice
    (Windows 7 x64, Logitech MX1100 mouse) If I click/hold/ the mouse, like on the title bar of a folder to move it, or to select text, the mouse will randomly "unselect" it and then randomly reselect at another point in the movement. For example, if I were to start mouse-selecting the above paragraph, starting with "movement." and then moving backwards, it might select as far as "reselect", but then the selection would disappear, only to start selecting again from "will randomly". I realize this would sound like a clear-cut case for a hardware issue in the mouse button, but I've narrowed out that that's not the case. The problem doesn't happen if I drag-move/drag-select slowly. But I can make the problem very apparent if I click and drag something fast. For example, if I click and hold the title bar of a window, and then start quickly dragging it around in circles across my monitor, the window will get "dropped", and a new window will get picked up in the process. Additionally, if I right-click anywhere to get a context menu (in Windows, programs, anywhere/everywhere), and then relatively quickly press the left mouse button to select something on the context menu, the context menu will disappear as if I had clicked "through" it. I haven't had any driver changes, system updates, or significant software changes/updates/installations recently, that might be a precursor to this issue. Again, the oddity seems to be the "speed" of action. Another note -- it seems that "lag" has a bit to do with it. If I click and drag a window around quickly, it might start to "lag" a tad bit, like it's perhaps moving too fast for Windows to keep up with the refresh/redraw rate, and that's usually synonymous with this odd deselect bug happening. (Batteries fully charged, no damage or recent changes to mouse, no changes that might affect/block wireless communication)

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  • Useful Excel keyboard shortcuts

    - by Ben Lings
    What keyboard shortcuts do you use in Excel? Things I've discovered recently and found very useful are: Shift + Space - select the current row Ctrl + Space - select the current column Ctrl + Shift + Space - select the block of contiguous cell Ctrl + + - Insert (as in the context menu). If the current row is selected, will insert a new row. Ctrl + - - Delete (as in the context menu). If the current row is selected, will delete entire row. What (apart from the normal cut, copy, paste, etc) do you use? Ctrl + 1 to open the Format dialog. Shift + F2 to add/edit a cell comment. Shift + F2, followed by Esc to select the current cell comment, which can then be moved around with the arrow keys (????) or deleted by pressing Del. Ctrl + ???? to move to the last non-blank cell in a series. This is usually the edge of a table, but not if you have blank cells in the path. Pressing End followed by an arrow key does the same thing. Alt + F11 to open the VBA editor. Alt + = to start a SUM() formula and go straight to selecting cells to be summed. Ctrl + G or F5 to jump to a cell by typing its coordinates (e.g. C3) Ctrl + Home to jump to the top left, usually A1 unless you you are in a frozen split view, in which case it will jump to the top left of the "data" area. Ctrl + ; and Ctrl + Shift + ; to insert the current date and time, respectively. I know Ben Lings already posted this one, but I find it indispensable.

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  • Sticky connection and HTTPS support for HAProxy

    - by Saif
    Hi Mates, We have 2 HTTP Load balancer with HAproxy and heartbeat. There are 4 apache nodes in this cluster. It's doing round robin load balancing. The HTTP cluster working fine. We are having problem with our portal because it uses SSO. We need sticky connection support in our HAproxy. Also we need load balancing for HTTPS traffic. Here's our HAproxy conf file. global # to have these messages end up in /var/log/haproxy.log you will # need to: # # 1) configure syslog to accept network log events. This is done # by adding the '-r' option to the SYSLOGD_OPTIONS in # /etc/sysconfig/syslog # # 2) configure local2 events to go to the /var/log/haproxy.log # file. A line like the following can be added to # /etc/sysconfig/syslog # # local2.* /var/log/haproxy.log # log 127.0.0.1 local0 log 127.0.0.1 local1 notice chroot /var/lib/haproxy pidfile /var/run/haproxy.pid maxconn 4000 user haproxy group haproxy daemon # turn on stats unix socket stats socket /var/lib/haproxy/stats #--------------------------------------------------------------------- # common defaults that all the 'listen' and 'backend' sections will # use if not designated in their block #--------------------------------------------------------------------- defaults mode http log global option httplog option dontlognull option http-server-close option forwardfor except 127.0.0.0/8 option redispatch retries 3 timeout http-request 10s timeout queue 1m timeout connect 10s timeout client 1m timeout server 1m timeout http-keep-alive 10s timeout check 10s maxconn 3000 #--------------------------------------------------------------------- # main frontend which proxys to the backends #--------------------------------------------------------------------- frontend main *:5000 acl url_static path_beg -i /static /images /javascript /stylesheets acl url_static path_end -i .jpg .gif .png .css .js use_backend static if url_static default_backend app #--------------------------------------------------------------------- # static backend for serving up images, stylesheets and such #--------------------------------------------------------------------- backend static balance roundrobin server static 127.0.0.1:4331 check #--------------------------------------------------------------------- # round robin balancing between the various backends #--------------------------------------------------------------------- backend app listen ha-http 10.190.1.28:80 mode http stats enable stats auth admin:xxxxxx balance roundrobin cookie JSESSIONID prefix option httpclose option forwardfor option httpchk HEAD /haproxy.txt HTTP/1.0 server apache1 portal-04:80 cookie A check server apache2 im-01:80 cookie B check server apache3 im-02:80 cookie B check server apache4 im-03:80 cookie B check Please advice. Thanks for your help in advance.

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  • Nginx case-insensitive reverse proxy rewrites

    - by BrianM
    I'm looking to setup an nginx reverse proxy to make some upcoming server moves and load balanced implementations much easier within our apps. Since our servers are all IIS case sensitivity hasn't been an issue, but now with nginx it's becoming one for me. I am simply looking to do a rewrite regardless of case. Infrastructure notes: All backend servers are IIS Most services are WCF services I am trying to simplify the URLs so I can move services around as we continue to build out I can't set my location to case insensitive due to the following error: nginx: [emerg] "proxy_pass" cannot have URI part in location given by regular expression, or inside named location, or inside "if" statement, or inside "limit_except" block in /etc/nginx/sites-enabled/test.conf:101 The main part of my conf file where I am trying to handle the rewrite is as follows location /svc_test { proxy_set_header x-real-ip $remote_addr; proxy_set_header x-forwarded-for $proxy_add_x_forwarded_for; proxy_set_header host $http_host; proxy_pass http://backend/serviceSite/WFCService.svc; } location ~* /test { rewrite ^/(.*)/$ /svc_test/$1 last; } It's the /test location that I can't get figured out. If I call http://nginxserver/svc_test/help I get the WCF help page to display correctly and I can make all available REST calls. This HAS to be a boneheaded regex issue on my part, but I have tried several variations and all I can get are 404 or 500 errors from nginx. This is NOT rocket science so can someone point me in the right direction so I can look like an idiot and just move on?

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  • sendmail: Error during delivery. Service not available, closing transmission channel

    - by user2810332
    I have a module in my system that will trigger an email and send it to user. The email will be sent to user when the product in my system is going to expired soon. I test the whole module in localhost and there is no problem with it. Then, I finally moved the module in my server but it gives this error. sendmail: Error during delivery: Service not available, closing transmission channel. It will also create a notepad in my desktop that contains information like this : command line : C:\wamp\sendmail\sendmail.exe -t -i executable : sendmail.exe exec. date/time : 2011-06-18 01:10 compiled with : Delphi 2006/07 madExcept version : 3.0l callstack crc : $fecf9b34, $5562b2fa, $5562b2fa exception number : 1 exception class : EIdSMTPReplyError exception message : Service not available, closing transmission channel. main thread ($15b0): 0045918a +003e sendmail.exe IdReplySMTP 501 +1 TIdReplySMTP.RaiseReplyError 0043ff28 +0008 sendmail.exe IdTCPConnection 576 +0 TIdTCPConnection.RaiseExceptionForLastCmdResult 004402f4 +003c sendmail.exe IdTCPConnection 751 +10 TIdTCPConnection.CheckResponse 0043feba +002a sendmail.exe IdTCPConnection 565 +2 TIdTCPConnection.GetResponse 004403fd +002d sendmail.exe IdTCPConnection 788 +4 TIdTCPConnection.GetResponse 0045ab97 +0033 sendmail.exe IdSMTP 375 +4 TIdSMTP.Connect 004b5f14 +1060 sendmail.exe sendmail 808 +326 initialization 77013675 +0010 kernel32.dll BaseThreadInitThunk thread $cf8: 77a400e6 +0e ntdll.dll NtWaitForMultipleObjects 77013675 +10 kernel32.dll BaseThreadInitThunk thread $1088: 77a41ecf +0b ntdll.dll NtWaitForWorkViaWorkerFactory 77013675 +10 kernel32.dll BaseThreadInitThunk May I know what is the problem of this error ? Is it something like firewall in the server that block my sendmail.exe or anything else ? FYI, I'm using Wamp and Sendmail to send the email. This is my first time seeing error like this. I need an explanation on this. Thank you.

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  • iSCSI, failover and XenServer

    - by jemmille
    I have an iSCSI fail over implementation setup so if one of my storage units fails the other takes over immediately (it also runs the NFS shares). When fail over occurs, volumes are exported, the IP is switched to the other machine and the targets are reconfigured. The fail over of the storage system itself works just fine. I use NexentaStor for my filer. When I do a test (manual) fail over of my storage the following occurs: Note: I run the admin VM's on NFS and customer based VM's on iSCSI All NFS based VM's remain up and working perfectly through the failover and after All VM 's running on iSCSI eventually report the following: An error about not being able to write to a particular block An error about journaling not working Then the file system goes RO To get the VM's working again I have to do the following: Force shutdown of the "broken" VM's. Detach the iSCSI SR Re-attach the iSCSI SR Boot the VM on a different server (5 in my pool) If I don't boot on a different server I get this error "Internal error: Failure("The VDI <uuid&gt; is already attached in RW mode; it can't be attached in RO mode!")" The only way I have found to fix that error is to reboot the entire server it was running on previously which is obviously a huge pain. Currently multipathing is NOT enabled (but can be and the same thing still occurs). I have edited much of the /etc/iscsid.conf file to work with the timeout settings but to no avail. In short, my storage fails over properly but XenServer does not keep the connection alive. As a thought, the error that shows up in #4 above might be the ultimate cause and fixing that would fix everything? Any help would be appreciated more than you know.

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  • Apache: Setting DocumentRoot to cgi directory results in downloading file instead of executing it.

    - by fastmonkeywheels
    I have a c-compiled CGI application that I need to execute from the DocumentRoot of my Apache server. The CGI file is called index.cgi and is located at /usr/lib/cgi-bin/index.cgi. I have the following Directory definition <Directory "/usr/lib/cgi-bin/"> Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch AllowOverride None Order allow,deny Allow from all DirectoryIndex index.cgi </Directory> I have the following VirtualHost setting: <VirtualHost *:80> ServerAdmin webmaster@localhost DocumentRoot /usr/lib/cgi-bin # ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ ErrorLog /var/log/apache2/error.log LogLevel warn CustomLog /var/log/apache2/access.log combined </VirtualHost> If I go to 127.0.0.1 or 127.0.0.1/index.cgi I get prompted to download the index.cgi file, however if I enable the ScriptAlias in the vhost configuration block and go to 127.0.0.1/cgi-bin/index.cgi I see the output of my CGI application. I had originally solved this problem with mod_rewrite, however that worked on my test system the target (embedded) doesn't have that module available so I'm looking at another route (again).

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  • Subversion Apache Ubuntu - Remote Access?

    - by Hollowsteps
    Okay, a couple days ago I built a bare bones kit into a machine. I've been running through tutorials to get it to work and right now I've gotten as far as making it available in my lan, hooray! However, I cannot access the repositories remotely. Any machine on the lan can easily access it through the hostname or, using 'outbound ip/hostname' or 'outbound ip/machine ip'. The machine can be pinged from a remote, non-lan machine and responds. I just can't get anyone into it outside of my lan. I've been trying to figure it out but I'm lost. I'm breaking a few rules and if any of these would be my problem, please indicate. I don't think I have a static IP (However I check my outbound IP whenever I do testing, is that not enough? It has stayed the same for 5+ days) I have not discussed this set-up with my service provider (Does Optimum Online block port 80? If so, can I just switch apache to listen on a different port?) I am in the DMZ of my router. This is what allowed it to be pinged remotely. For security reasons the machine that is in that zone is turned off most of the time until I can get it locked down. Any help would be appreciated, even if it's just a couple of words I could google to understand what I'm doing wrong. Tortoise SVN does not allow access remotely, but it does within the LAN as well.

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  • Disable raid member check upon mount to mount damaged nvidia raid1 member

    - by Halfgaar
    Hi, A friend of mine destroyed his Nvidia RAID1 array somehow and in trying to fix it, he ended up with a non-working array. Because of the RAID metadata, the actual disk data was stored at an offset from the beginning. I was able to identify this offset with dd and a hexeditor and then I used losetup to create a loop device with the proper offset, so that I could mount the partition. It was then that I ran into problems, namely that mount says: "mount: unknown filesystem type 'nvidia_raid_member'". I also had this when trying to mount a Linux MD component the other day, and because I can remember that doing that in the past worked, I surmised that it may be some kind of protection. I therefore booted an old Sysrescue CD and tried it there, which worked (because of the older version of mount/libc/kernel/whatever). I still need to try to get more data, and because I don't want to keep using that SysrecueCD, I'd like to be able to mount the disk on my normal system. So, my question is: can the check for a disk being a raid member be disabled? I guess I could also zero out blocks that look like the raid block, but I'd rather not... I made an image of the disk with par2 data, so it's revertable, but still...

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  • OpenVpn Iptables Error

    - by Mook
    I mean real newbie - linux here.. Please help me configuring my openvpn through iptables. My main goal here is to open port for regular browsing (80, 443), email (110, 25), etc just like isp does but i want to block p2p traffic. So I will need to open only few port. Here are my iptables config # Flush all current rules from iptables # iptables -F iptables -t nat -F iptables -t mangle -F # # Allow SSH connections on tcp port 22 (or whatever port you want to use) # iptables -A INPUT -p tcp --dport 22 -j ACCEPT # # Set default policies for INPUT, FORWARD and OUTPUT chains # iptables -P INPUT DROP #using DROP for INPUT is not always recommended. Change to ACCEPT if you prefer. iptables -P FORWARD ACCEPT iptables -P OUTPUT ACCEPT # # Set access for localhost # iptables -A INPUT -i lo -j ACCEPT # # Accept packets belonging to established and related connections # iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT # #Accept connections on 1194 for vpn access from clients #Take note that the rule says "UDP", and ensure that your OpenVPN server.conf says UDP too # iptables -A INPUT -p udp --dport 1194 -j ACCEPT # #Apply forwarding for OpenVPN Tunneling # iptables -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT iptables -A FORWARD -s 10.8.0.0/24 -j ACCEPT #10.8.0.0 ? Check your OpenVPN server.conf to be sure iptables -A FORWARD -j REJECT iptables -t nat -A POSTROUTING -o venet0 -j SNAT --to-source 100.200.255.256 #Use your OpenVPN server's real external IP here # #Enable forwarding # echo 1 > /proc/sys/net/ipv4/ip_forward iptables -A INPUT -p tcp --dport 25 -j ACCEPT iptables -A INPUT -p tcp --dport 26 -j ACCEPT iptables -A INPUT -p tcp --dport 80 -j ACCEPT iptables -A INPUT -p tcp --dport 110 -j ACCEPT iptables -A INPUT -p tcp --dport 443 -j ACCEPT iptables -L -v But when I connect to my vpn, i can't browsing and also got RTO on pinging yahoo, etc

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  • Can I subnet a subnet?

    - by Portman
    Apologies in advance for the botched terminology. I have read the Server Fault Subnet Wiki but this is more of an ISP question. I currently have a /27 block of public IPs. I use give my router the first address in this pool and then use 1-to-1 NAT for all the servers behind the firewall, so that they each get their own public IP. The router/firewall is currently using (actual addresses removed to protect the guilty): IP Address: XXX.XXX.XXX.164 Subnet mask: 255.255.255.224 Gateway: XXX.XXX.XXX.161 What I would like to do is break out my subnet into two separate /28 subnets. And do this in a way that is transparent to the ISP (i.e., they see me as continuing to operate a single /27). Currently, my topology looks like: ISP | [Router/Firewall] | [Managed Ethernet Switch] / \ \ [Server1] [Server2] [Server3] (etc) Instead, I would like it to look like: ISP | [Switch] / \ [Router1] [Router2] | | | | [S1] [S2] [S3] [S4] (etc) As you can see, this would partition me into two separate networks. I'm struggling with what the correct IP settings would be on Router1 and Router2. Here's what I have right now: Router1 Router2 IP Address: XXX.XXX.XXX.164 XXX.XXX.XXX.180 Subnet mask: 255.255.255.240 255.255.255.240 Gateway: XXX.XXX.XXX.161 XXX.XXX.XXX.161 Note that normally you would expect Router2 to have a gateway of .177, but I'm trying to get them both to use the gateway originally given to me by the ISP. Is subnetting like this in fact possible, or am I completely botching the most basic concepts?

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  • Sending USR2 to mongrel_rails sometimes results in an “Address already in use” on the restart

    - by Ben
    We have a rolling-restart mode for our mongrel cluster that sends a USR2 signal to each running process. This works great, most of the time. But very occasionally the mongrel process will shutdown, and then fail to restart, with the following error: /usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/tcphack.rb:12:in `initialize_without_backlog': Address already in use - bind(2) (Errno::EADDRINUSE) from /usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/tcphack.rb:12:in `initialize' from /usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:93:in `new' from /usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:93:in `initialize' from /usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/configurator.rb:139:in `new' from /usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/configurator.rb:139:in `listener' Looking though the mongrel source, the USR2 handler calls a synchronous stop on the running server, so it ought to block until the socket has been released. Has anyone seen this error? Does anyone have any ideas what might cause it? (I asked this question over on StackOverflow initially, but thought it might be more appropriate here)

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  • What is Apache Synapse?

    - by Aren B
    My website keeps getting hit by odd requests with the following user-agent string: Mozilla/4.0 (compatible; Synapse) Using our friendly tool Google I was able to determine this is the hallmark calling-card of our friendly neighborhood Apache Synapse. A 'Lightweight ESB (Enterprise Service Bus)'. Now, based on this information I was able to gather, I still have no clue what this tool is used for. All I can tell is that is has something to do with Web-Services, and supports a variety of protocols. The Info page only leads me to conclude it has something to do with proxies, and web-services. The problem I've run into is that while normally I wouldn't care, we're getting hit quite a bit by Russian IPs (not that russian's are bad, but our site is pretty regionally specific), and when they do they're shoving wierd (not xss/malicious at least not yet) values into our query string parameters. Things like &PageNum=-1 or &Brand=25/5/2010 9:04:52 PM. Before I go ahead and block these ips/useragent from our site, I'd like some help understanding just what is going on. Any help would be greatly appreciated :)

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  • Why are UDP messages from outside the network received but not delivered?

    - by Warren Pena
    I have an Ubuntu Server 10.04 application I've developed that receives messages over a UDP port. The ultimate purpose of this application is to receive messages sent from workers' 3G modems out in the field. If use netcat on either another ubuntu Server or my Vista laptop (both on the same LAN as my test machine) to send a message, the message arrives correctly and appears in my application. However, if I go out to my car and use its 3G modem to send a message from the same Vista laptop, it doesn't work. If I run tcpdump -A, I see the message arrive correctly, but it's never delivered to my application. Clearly, the OS is the one making the choice not to deliver the messages (else they wouldn't appear in tcpdump nor would my app receive them when coming from local machines). I have not installed any firewall software on this machine, nor am I aware of anything installed by default that would block the traffic. sudo iptables --list returns Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination I'm not too familiar with iptables, but it looks to me like that's telling it to not do anything. What could be going on that's preventing my messages from being delivered?

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  • sendmail.exe: Error during delivery. Service not available, closing transmission channel

    - by user2810332
    I have a module in my system that will trigger an email and send it to user. The email will be sent to user when the product in my system is going to expired soon. I test the whole module in localhost and there is no problem with it. Then, I finally moved the module in my server but it gives this error. sendmail: Error during delivery: Service not available, closing transmission channel. It will also create a notepad in my desktop that contains information like this : command line : C:\wamp\sendmail\sendmail.exe -t -i executable : sendmail.exe exec. date/time : 2011-06-18 01:10 compiled with : Delphi 2006/07 madExcept version : 3.0l callstack crc : $fecf9b34, $5562b2fa, $5562b2fa exception number : 1 exception class : EIdSMTPReplyError exception message : Service not available, closing transmission channel. main thread ($15b0): 0045918a +003e sendmail.exe IdReplySMTP 501 +1 TIdReplySMTP.RaiseReplyError 0043ff28 +0008 sendmail.exe IdTCPConnection 576 +0 TIdTCPConnection.RaiseExceptionForLastCmdResult 004402f4 +003c sendmail.exe IdTCPConnection 751 +10 TIdTCPConnection.CheckResponse 0043feba +002a sendmail.exe IdTCPConnection 565 +2 TIdTCPConnection.GetResponse 004403fd +002d sendmail.exe IdTCPConnection 788 +4 TIdTCPConnection.GetResponse 0045ab97 +0033 sendmail.exe IdSMTP 375 +4 TIdSMTP.Connect 004b5f14 +1060 sendmail.exe sendmail 808 +326 initialization 77013675 +0010 kernel32.dll BaseThreadInitThunk thread $cf8: 77a400e6 +0e ntdll.dll NtWaitForMultipleObjects 77013675 +10 kernel32.dll BaseThreadInitThunk thread $1088: 77a41ecf +0b ntdll.dll NtWaitForWorkViaWorkerFactory 77013675 +10 kernel32.dll BaseThreadInitThunk May I know what is the problem of this error ? Is it something like firewall in the server that block my sendmail.exe or anything else ? FYI, I'm using Wamp and Sendmail to send the email. This is my first time seeing error like this. I need an explanation on this. Thank you.

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  • SAN Replication for Fault tolerance using EVA4400

    - by Sergei
    Hi Everyone, I hope that someone would point me in the correct direction - it looks like I have no enough konwledge in the subject and timeframes are too tight for me to explore different scenarios in depth.. We have two datacenters few miles away from each other connected by 100 Mbps link.Each datacenter will have 5 BL490 blades with ESX Standard hosting about 50 VMs. Eac hsite has HP eva4400 SAN with SAN replication set up.VC is going to be in the first datacenter and both datacenter are networked. SAN Replication is block level so it seems like I cannot just replicate changes but all writes would have to be replicated.This should not be a problem as link can sustain about 1.8 TB a dayand data can be buffered. I am having trouble however visioning how recovery would work in this case.We don't need instant recovery , I would say 4 hours recovery time is accepted so fancy automatic SRM like DR scenario would not be easily accepted due to the financial reasons, however any comments are welcomed. Current idea is following: replicate LUNs from primary site to the secondary.When disaster strikes, IT personnel switches on ESX hosts on the remote side and connects replicated LUNS to them, then registers VMs and changes IP address. I understand that this seems like horribly manual process and I almost sure I have missed some obvious pitfalls here. Could someone let me know what direction should I go?An articles regarding the subject? This is a brand new setup and we would rather build up basic recovery process and scale it later.I just need to have a right direction to allow for such scalability. Thank you very much in advance!

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  • SAN with iSCSI-Target Performance Horrendous

    - by Justin
    We have a poor man's SAN setup in a 1U Ubuntu server running iSCSI-Target with two 300GB drives in RAID-0. We then are using it for block level storage for virtual machines. The hypervisor is connected to the SAN via gigabit on a dedicated VLAN and interfaces. We only have a single virtual machine setup and doing some benchmarks. If we run hdparm -t /dev/sda1 from the virtual machine, we get 'ok' performance of 75MB/s from the virtual machine to the SAN. Then we basically compile a package with ./configure and make. Things start ok, but then all the sudden the load average on the SAN grows to 7+ and things slow down to a crawl. When we SSH into the SAN and run top, sure the load is 7+, but the CPU usage is basically nothing, also the server has 1.5GB of memory available. When we kill the compile on the virtual machine, slowly the LOAD on the SAN goes back to sub 1 figures. What in the world is causing this? How can we diagnosis this further? Here are two screenshot from the SAN during high load. 1> Output of iotop on the SAN: 2> Output of top on the SAN:

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  • authbind, privbind or iptables REDIRECT (port 80 to 8080)?

    - by chris_l
    Hi, I'd like to run Glassfish v3 as a non-privileged user on Linux (Debian), but make it available on port 80. I'm currently doing this with iptables: iptables -t nat -I PREROUTING -p tcp -d x.x.x.x --dport 80 -j REDIRECT --to-port 8080 This works, but I wonder: If this has any significant performance impact compared to binding directly to port 80 If I could make a similar setup also work for HTTPS (or if that must run on 443) If there's a way to avoid other users from binding to port 8080 (in case my server crashes) - maybe block that port permanently to other users somehow? ...or if I should use authbind/privbind instead? Problem: I couldn't make it work with authbind or privbind so far. For authbind, I edited asadmin's last line to: exec authbind --deep "$JAVA" -Djava.net.preferIPv4Stack=true -jar ... For privbind: exec privbind -u glassfish "$JAVA" -Djava.net.preferIPv4Stack=true -jar ... (Only) with these settings, I can successfully perform a create-domain --domainport 80. This proves, that authbind and privbind actually work (the authbind version of the script is called by the glassfish user; the privbind version is called by root of course). However, in both cases I get the following exception, when starting the domain (start-domain): [#|2010-03-20T13:25:21.925+0100|SEVERE|glassfishv3.0|javax.enterprise.system.core.com.sun.enterprise.v3.server|_ThreadID=11;_ThreadName=FelixStartLevel;|Shutting down v3 due to startup exception : Permission denied: 80=com.sun.enterprise.v3.services.impl.monitor.MonitorableSelectorHandler@1fc25e5|#] I haven't found a solution for that yet (after searching the web, it seems, that this isn't so easy?) But maybe, the solution with iptables is good enough - what do you think? Thanks, Chris

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  • How do I get more information on a potential network freeloader?

    - by Dov
    I have a home network set up, complete with a relatively good password. I'm in Mac OS X 10.6 (Snow Leopard) and have been noticing, on occasion, a computer showing up in my Finder's Shared section, that is not one of my own (the "pe-xpjalle" box pictured below). He has a tendency to come and go. How can I figure out his MAC address or something, so I can block him? I checked my "Logs and Statistics" in the Airport Utility, and didn't see that computer under DHCP clients. I'd rather not change my password, since I have quite a few devices I'd have to update. Is there any other reason he's show up on my network besides having guessed my password? Update: I fixed the Dropbox URL above (how embarrassing, I'm new to Dropbox. Thanks for the heads up, Doug.) Update 2: I tried clicking on "Connect as..." just for the hell of it, and got the dialog below. Now I have even less an idea what's going on than before. I don't have Parallels of VMware running, just the following: Transmission, NetNewsWire, Mail, Things, Safari, iTunes, Photoshop, Pages, Yojimbo, Preferences, AppleScript Editor, Software Update, Airport Utility, and Terminal. I don't think any of those create a virtual network machine, right? And no VMware machine of mine has ever had a name resembling "pe-xpjalle". Update 3: I just changed my passwords on both my N- and G-only networks, and I'm still seeing this, so I highly doubt that it's someone who's figured out my password (twice now). I'm really stumped.

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  • CoreStore Encryption Error on Mac Lion

    - by Michael
    I am trying to encrypt an external drive using diskutil CoreStorage on Mac Lion 10.7.4. I thought the only requirements were that the drive have GUID partition scheme and Journaled HFS+ file system. I think my drive is configured accordingly but when I type the following command I get an error message back: Michaels-MacBook-Pro:~ Michael$ diskutil cs convert disk2 -passphrase TestPassword Error converting disk to CoreStorage: The given file system is not supported on Core Storage (-69756) Here are the details reported for the drive in question: Michaels-MacBook-Pro:~ Michael$ diskutil list disk2 /dev/disk2 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *500.1 GB disk2 1: EFI 209.7 MB disk2s1 2: Apple_HFS Test1 499.8 GB disk2s2 Michaels-MacBook-Pro:~ Michael$ diskutil list disk2 /dev/disk2 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *500.1 GB disk2 1: EFI 209.7 MB disk2s1 2: Apple_HFS Test1 499.8 GB disk2s2 Michaels-MacBook-Pro:~ Michael$ diskutil info disk2s2 Device Identifier: disk2s2 Device Node: /dev/disk2s2 Part of Whole: disk2 Device / Media Name: Test1 Volume Name: Test1 Escaped with Unicode: Test1 Mounted: Yes Mount Point: /Volumes/Test1 Escaped with Unicode: /Volumes/Test1 File System Personality: Journaled HFS+ Type (Bundle): hfs Name (User Visible): Mac OS Extended (Journaled) Journal: Journal size 40960 KB at offset 0xe8e000 Owners: Disabled Partition Type: Apple_HFS OS Can Be Installed: Yes Media Type: Generic Protocol: FireWire SMART Status: Not Supported Volume UUID: 1024D0B8-1C45-3057-B040-AE5C3841DABF Total Size: 499.8 GB (499763888128 Bytes) (exactly 976101344 512-Byte-Blocks) Volume Free Space: 499.3 GB (499315826688 Bytes) (exactly 975226224 512-Byte-Blocks) Device Block Size: 512 Bytes Read-Only Media: No Read-Only Volume: No Ejectable: Yes Whole: No Internal: No I'm a little concerned that the "Partition Type: Apple_HFS" entry is causing the problem, but I don't know how to change that. I only seem to be able to control the "File System Personality: Journaled HFS+" in Disk Utility. Can anyone shed some light on this for me?

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  • SAN performance issues storing SQL Server tempdb on a SAN that's being backed up

    - by user42724
    I'm afraid I don't know much about SAN's so please forgive my lack of detail or technical terms. As a developer I've just completed and put on an existing production system a new application but it would appear to have tipped the scales regarding the performance of the backups being taken from the SAN. As I understand it there's a mirror of the SAN being taken usually constantly at the block-level. However, there seem to be so many new writes to the disk that the SAN mirroring/backup process can no longer keep up. I believe I've narrowed this down to SQL Servers tempdb which exists on a drive that contributes the largest portion of the problem! In fact I think tempdb has be contributing the largest portion of the issues all along regardless of my application! My question therefore is whether the tempdb should ever be mirrored or backed on the SAN and whether anyone else has gone through this sort of pain already? I'm wondering whether it's a best practise to make sure that tempdb is never mirrored on a SAN simply because any writes to it don't need to be saved. This also raises a slightly connected question - is it better to rely on SQL Servers built-in database backups tools (DB in full-recovery mode with full/differential and transaction log backups) or, as is the case with our application, SQL server is in simple recovery mode and never backed up since the SAN is mirrored and backed up? Many thanks

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  • Finding all IP ranges blelonging to a specific ISP

    - by Jim Jim
    I'm having an issue with a certain individual who keeps scraping my site in an aggressive manner; wasting bandwidth and CPU resources. I've already implemented a system which tails my web server access logs, adds each new IP to a database, keeps track of the number of requests made from that IP, and then, if the same IP goes over a certain threshold of requests within a certain time period, it's blocked via iptables. It may sound elaborate, but as far as I know, there exists no pre-made solution designed to limit a certain IP to a certain amount of bandwidth/requests. This works fine for most crawlers, but an extremely persistent individual is getting a new IP from his/her ISP pool each time they're blocked. I would like to block the ISP entirely, but don't know how to go about it. Doing a whois on a few sample IPs, I can see that they all share the same "netname", "mnt-by", and "origin/AS". Is there a way I can query the ARIN/RIPE database for all subnets using the same mnt-by/AS/netname? If not, how else could I go about getting every IP belonging to this ISP? Thanks.

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  • "Windows detected a hard drive" issue in Windows 7 x64

    - by Jasiu
    I upgraded to the OCZ-Agility3 120GB from a 60 OCZ Vertex2 SSD. I cloned the drive from the Vertex to the new Agility. Everything seemed to have gone well and have not had any problems. Recently in the passed month I have gotten this error: I downloaded teh OCZToolboxMP and ran the SMART utility and don't see anything wrong: SMART READ DATA ModelNumber : OCZ-AGILITY3 Serial Number : OCZ-Y1945X77438P4NU6 WWN : 5-e8-3a-97 ebea5ba76 Revision: 10 Attributes List 1: SSD Raw Read Error Rate Normalized Rate: 70 total ECC and RAISE errors 5: SSD Retired Block Count Reserve blocks remaining: 100% 9: SSD Power-On Hours Total hours power on: 968 12: SSD Power Cycle Count Count of power on/off cycles: 28 171: SSD Program Fail Count Total number of Flash program operation failures: 0 172: SSD Erase Fail Count Total number of Flash erase operation failures: 0 174: SSD Unexpected power loss count Total number of unexpected power loss: 11 177: SSD Wear Range Delta Delta between most-worn and least-worn Flash blocks: 0 181: SSD Program Fail Count Total number of Flash program operation failures: 0 182: SSD Erase Fail Count Total number of Flash erase operation failures: 0 187: SSD Reported Uncorrectable Errors Uncorrectable RAISE errors reported to the host for all data access: 4145 194: SSD Temperature Monitoring Current: 30 High: 30 Low: 30 195: SSD ECC On-the-fly Count Normalized Rate: 120 196: SSD Reallocation Event Count Total number of reallocated Flash blocks: 100 201: SSD Uncorrectable Soft Read Error Rate Normalized Rate: 120 204: SSD Soft ECC Correction Rate (RAISE) Normalized Rate: 120 230: SSD Life Curve Status Current state of drive operation based upon the Life Curve: 100 231: SSD Life Left Approximate SDD life Remaining: 100% 241: SSD Lifetime writes from host lifetime writes 893 GB 242: SSD Lifetime reads from host lifetime reads 968 GB Does anyone have any ideas of what might be wrong and or how I can go about fixing this? Please let me know if there is other information I can provide. Thanks for your help Windows 7 x64 SP1 AMD Phenom II X4 940 8GB RAM

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  • Slow VM on esxi 4.1

    - by user57432
    We have a FreeBSD 64bit running on a esxi 4.1, the hardware platform is a DELL R710 with 2 x 56xx (intel 6core cpu) and 48 GB ram. The FreeBSD vm is very slow, when we compiles/builds something on it, it takes 5 minuts and it says "build time 18 seconds.". There's no vmtools installed on the vm. The same vm is installaed on another R710 running esxi 4.0 for dell and there's no problems with that one. Does anyone have any idea about what to look for? the VMs on the second server (ESXi 4.1) is a clone of the VMs running on the first VMserver (ESXi 4.0 Dell edition). It's not possible for me to move the VM back to the first server since the file contaning the vm is too big. We installed the new esxi with a datasore with 8mb blocks because 1mb blocks dident allow for the file size we needed. It looks like the www server on the new ESXi 4.1 works fine, but I havent really tested it. There's not installed vmtools on any of the VMs (FreeBSD). The block size on the second VM (ESXi 4.1) datastorage is 8mb and 1mb on the first (ESXi 4.0)

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