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• Changing the View of a Folder When It Is Opened from Finder

  - by user60044

  When I was running OS 10.4 I had all my folders beautifully organized with position and which ones should be opened in View mode and which one in Icon, etc. When I transitioned to 10.6 I found that OS ignored all that information and imposes an awful consequence of changing the view for some folder and that view moving up to all parent folders which don't have their views locked. The only way I can think of to get this functionality back is to either write a program that given a root directory will enumerate it setting the views based upon a static template I have. The other way I thought I could accomplish this is by Folder Actions. Aside from the fact that I don't know AppleScript it seems folder actions cannot be inherited. Since I have 1000s of folders involved here, all being inherited from a single root, I could not possibly manually add that action to each of those folders. What I would like to have is a folder action that whenever I open the folder from Finder, then if it contains any JPG, GIF, etc. type image files that it will automatically open that folder with a view of Icon with a reasonable size to support the number of images. If the folder contains only folders, then to open that folder in the list view. Does anyone have anything that could do this for me? Thank You, -- Mark

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• How to deal with ssh's "WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!"?

  - by Vi.

  I often need to login to multiple remote stations that are just placed to the same static IPs for me. SSH complains about changed keys in this case: $ ssh [email protected] @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ ... Offending RSA key in /home/vi/.ssh/known_hosts:70 ... I usually just run vim /home/vi/.ssh/known_hosts +70, dd wq and re-run the SSH command. How to do it simpler? Requirements: The warning should be displayed, and not like this: The authenticity of host '172.1.2.3 (172.1.2.3)' can't be established. It is easy to accept the key change. I expect something like this: $ ssh [email protected] @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ ... The fingerprint for the RSA key sent by the remote host is 82:cd:be:7a:ae:1b:91:2c:23:c1:74:4d:8a:38:10:32. Change the host key in /home/vi/.ssh/known_hosts (yes/no)? yes Warning: Changed host key for '172.1.2.3' (RSA) in the list of known hosts. [email protected]'s password: Simple and differs from usual "The authenticity of host can't be established." message.

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• Would a PHP application benefit from being served from a RAM drive?

  - by Tom Marthenal

  I am in charge of hosting a PHP application that is large and slow, but easy to scale. The application is entirely static, with writable disk storage needed. We've profiled the application, and the main bottleneck appears to come from loading the application and not the work the application does. The application is not CPU-intensive, although it does use a fair amount of memory (think Magento). Currently we distribute it by having a series of servers with the same PHP files on their hard drive and a load balancer in front of them. Easy but expensive. I've been reading about RAM disks and the IO benefits they offer, and was wondering if they would be well-suited to PHP applications. Since PHP applications are loaded from disk for every request and often involve lots of different files (as opposed to being kept in memory like with a Java application), I would figure that disk performance can be a severe bottleneck. Would placing the PHP files on a RAM disk and using the mount point as Apache's document root offer performance benefits? A startup script could create the RAM drive and then copy the files (which are plain-text and small) from a permanent location to the temporary RAM drive. Does this make sense, or should I just trust the linux kernel to cache the appropriate files in memory by itself?

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• erratic response times with Apache 2.0.52 on redhat 4.

  - by Kevin

  Under load, we've noticed response times from Apache vary greatly for the same 7k image. It can range anywhere from .01 seconds to 25 seconds or greater. Unfortunately, due to corporate policy constraints we are pretty much stuck on Apache 2.0.52. I'm at best an Apache novice so I'm in over my head with this problem. My focus recently has turned to our choice of MPM modules. We use the worker model on a dual core hyper threaded blade. It doesn't appear that swapping is an issue, and I don't see any signs of a hardware problem. I've read that worker is optimal on hardware with many CPU's where prefork it more suitable for our specific hardware profile. I can see conceptually how choosing the wrong MPM could result in this erratic behavior, but I'm not confident that it's the root cause here. Has anyone else seen this type of range in your response times for simple static content? What else should I be looking into here?

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• Cant ping ip on LAN. Port forward works fine though.

  - by Anoop

  I have a Solaris 11 machine running inside the LAN. It is a default install. I can access the machine and ping it if I ssh into my router (if it matters, it is running dd-wrt). I cannot ping the Solaris machine using ip address from any other machine inside the LAN. But if I setup port forwarding everything works perfectly fine. I can also use the port forward from outside the LAN (from my office) - which is good and how I want it to be. I can SSH and ping and do pretty much everything else from outside as well as inside but only as long as I have the port forwarded from my router. Why would I not be able to ping or ssh or even access the Solaris 11 machine from within the LAN - I have checked and couldn't find any firewall running on the Solaris 11 box. I even tried disabling every known firewall on the router (dd-wrt, it had something like SPI firewall running). I even tried setting a static IP for my Solaris box but all in vain! Please help me understand how and why this happens!! Thanks.

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• Server Intermittently Inaccessible Externally (but Accessible Internally Continuously)

  - by nicorellius

  I have a CRM on a server on a network. We have a static IP and another server outward facing. We use port-forwarding to map to the CRM, so that when you go to the IP or the FQDN, you get to the CRM: xxx.xxx.xxx.xxx crm.example.com Internally, we can access the CRM by going to crm or crm.example.com Lately, I've been noticing that accessing the server from outside the network times out or gives 503, bad gateway. During that time, I can also SSH (different port, so this works) into the outward facing computer and access the server just fine. I have a robot monitoring the site and indeed via HTTP monitoring the site is going down periodically. I looked through the Apache server access and error logs and nothing stuck out at me so I'm a bit confused as to what could be going on. I also searched the access logs for 503 and found nothing. When I run tracert from outside the network, it appears the packets basically make it through the wider area servers (Comcast city and county servers) and end up dropping at the CRM server's front step. I'm tempted to replace the server because it is older and underpowered but it would be nice to know what is going on. Any ideas what to do next?

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• MBR seems to be gone

  - by bobobobo

  So, horror story for everyone. I bought two spanking new HDD's. MM!! Gbitage. I removed all my old HDD's, physically labelled them, and was preparing to install all new HDD's (fresh sys install included!) To make sure what HDD was what, I popped each OLD HDD (data filleD!) into a Thermaltake Blacx toaster.. surprisingly BOTH couldn't be read. I didn't have static on my hands! I'm certain of it. I touched metal, touched wood, before beginning this all. Thinking that was strage, I hauled up the new sys, installed Win XP (of course!) on the new HDD, and now the two OLD HDD's (data filled!) that were entered into the toaster cannot be read. And they had tons of data on them. I read about MBR's being nuked and it sounds like that is what it is. But I'm at a loss what to do. There are so many MBR recovery programs out there, I kind of feel overwhelmed. I don't want to lose my data by just pikcing one, yet it seems so close within reach, I'm not panicking anymore.. Anybody have a play by play that I could follow? I just don't want to spend $900 on data recovery centers if I can do this myself..

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• ASA 5540 v8.4(3) vpn to ASA 5505 v8.2(5), tunnel up but I cant ping from 5505 to IP on other side

  - by user223833

  I am having problems pinging from a 5505(remote) to IP 10.160.70.10 in the network behind the 5540(HQ side). 5505 inside IP: 10.56.0.1 Out: 71.43.109.226 5540 Inside: 10.1.0.8 out: 64.129.214.27 I Can ping from 5540 to 5505 inside 10.56.0.1. I also ran ASDM packet tracer in both directions, it is ok from 5540 to 5505, but drops the packet from 5505 to 5540. It gets through the ACL and dies at the NAT. Here is the 5505 config, I am sure it is something simple I am missing. ASA Version 8.2(5) ! hostname ASA-CITYSOUTHDEPOT domain-name rngint.net names ! interface Ethernet0/0 switchport access vlan 2 ! interface Ethernet0/1 ! interface Ethernet0/2 ! interface Ethernet0/3 ! interface Ethernet0/4 ! interface Ethernet0/5 ! interface Ethernet0/6 ! interface Ethernet0/7 ! interface Vlan1 nameif inside security-level 100 ip address 10.56.0.1 255.255.0.0 ! interface Vlan2 nameif outside security-level 0 ip address 71.43.109.226 255.255.255.252 ! banner motd ***ASA-CITYSOUTHDEPOT*** banner asdm CITY SOUTH DEPOT ASA5505 ftp mode passive clock timezone EST -5 clock summer-time EDT recurring dns server-group DefaultDNS domain-name rngint.net access-list outside_1_cryptomap extended permit ip host 71.43.109.226 host 10.1.0.125 access-list outside_1_cryptomap extended permit ip 10.56.0.0 255.255.0.0 10.0.0.0 255.0.0.0 access-list outside_1_cryptomap extended permit ip 10.56.0.0 255.255.0.0 10.106.70.0 255.255.255.0 access-list outside_1_cryptomap extended permit ip 10.56.0.0 255.255.0.0 10.106.130.0 255.255.255.0 access-list outside_1_cryptomap extended permit ip host 71.43.109.226 host 10.160.70.10 access-list inside_nat0_outbound extended permit ip host 71.43.109.226 host 10.1.0.125 access-list inside_nat0_outbound extended permit ip 10.56.0.0 255.255.0.0 10.0.0.0 255.0.0.0 access-list inside_nat0_outbound extended permit ip 10.56.0.0 255.255.0.0 10.106.130.0 255.255.255.0 access-list inside_nat0_outbound extended permit ip 10.56.0.0 255.255.0.0 10.106.70.0 255.255.255.0 access-list inside_nat0_outbound extended permit ip host 71.43.109.226 10.106.70.0 255.255.255.0 pager lines 24 logging enable logging buffer-size 25000 logging buffered informational logging asdm warnings mtu inside 1500 mtu outside 1500 icmp unreachable rate-limit 1 burst-size 1 icmp permit any inside no asdm history enable arp timeout 14400 global (outside) 1 interface nat (inside) 0 access-list inside_nat0_outbound nat (inside) 1 0.0.0.0 0.0.0.0 route outside 0.0.0.0 0.0.0.0 71.43.109.225 1 timeout xlate 3:00:00 timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02 timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00 timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00 timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute timeout tcp-proxy-reassembly 0:01:00 timeout floating-conn 0:00:00 dynamic-access-policy-record DfltAccessPolicy aaa-server TACACS+ protocol tacacs+ aaa-server TACACS+ (inside) host 10.106.70.36 key ***** aaa authentication http console LOCAL aaa authentication ssh console LOCAL aaa authorization exec authentication-server http server enable http 192.168.1.0 255.255.255.0 inside http 10.0.0.0 255.0.0.0 inside http 0.0.0.0 0.0.0.0 outside snmp-server host inside 10.106.70.7 community ***** no snmp-server location no snmp-server contact snmp-server community ***** snmp-server enable traps snmp authentication linkup linkdown coldstart crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac crypto ipsec transform-set ESP-AES-128-SHA esp-aes esp-sha-hmac crypto ipsec transform-set ESP-AES-128-MD5 esp-aes esp-md5-hmac crypto ipsec transform-set ESP-AES-192-SHA esp-aes-192 esp-sha-hmac crypto ipsec transform-set ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac crypto ipsec transform-set ESP-AES-256-SHA esp-aes-256 esp-sha-hmac crypto ipsec transform-set ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac crypto ipsec transform-set ESP-DES-SHA esp-des esp-sha-hmac crypto ipsec transform-set ESP-DES-MD5 esp-des esp-md5-hmac crypto ipsec security-association lifetime seconds 28800 crypto ipsec security-association lifetime kilobytes 4608000 crypto map outside_map 1 match address outside_1_cryptomap crypto map outside_map 1 set pfs group1 crypto map outside_map 1 set peer 64.129.214.27 crypto map outside_map 1 set transform-set ESP-3DES-SHA crypto map outside_map interface outside crypto isakmp enable outside crypto isakmp policy 1 authentication pre-share encryption des hash md5 group 2 lifetime 86400 telnet timeout 5 ssh 10.0.0.0 255.0.0.0 inside ssh 0.0.0.0 0.0.0.0 outside ssh timeout 5 console timeout 0 management-access inside dhcpd auto_config outside ! dhcpd address 10.56.0.100-10.56.0.121 inside dhcpd dns 10.1.0.125 interface inside dhcpd auto_config outside interface inside ! dhcprelay server 10.1.0.125 outside dhcprelay enable inside dhcprelay setroute inside dhcprelay timeout 60 threat-detection basic-threat threat-detection statistics access-list no threat-detection statistics tcp-intercept tftp-server inside 10.1.1.25 CITYSOUTHDEPOT-ASA-Confg webvpn tunnel-group 64.129.214.27 type ipsec-l2l tunnel-group 64.129.214.27 ipsec-attributes pre-shared-key ***** ! ! prompt hostname context

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• How do I setup routing for two companies with different Internet connections on the same LAN?

  - by Clint Miller

  Here's the setup: Two companies (A & B) share office space and a LAN. A 2nd ISP is brought in and company A wants its own Internet connection (ISP A) and company B wants its own Internet connection (ISP B). VLANs are deployed internally to separate the two companies' networks (company A: VLAN 1, company B: VLAN 2, shared VOIP: VLAN 3). With separate VLANs it's simple enough to use separate DHCP servers (or separate scopes on the same server) to assign the default gateway to each company's gateway for their Internet connection. Static routes can be created on each gateway to point traffic destined for the other company's VLAN or the voice VLAN so that all nodes are reachable as expected. However, I think this is a form of asymmetrical routing, right? (The path from node A1 to node B1 is not the same as the path back from node B1 to node A1). Can I set up policy-based routing to correct this? In that case, can I assign the same default gateway to every device on all VLANs and create a routing policy on a L3 switch to look at the source address and forward traffic to the appropriate next hop? In that case, I want the routing logic to go like this: If the destination address is known, forward the traffic (traffic destined for a different VLAN). If the destination address is unknown, forward the traffic to ISP A's gateway if the source address is on VLAN A; or forward the traffic to ISP B's gateway if the source address is VLAN B. Am I thinking about this problem in the correct way? Is there another way to solve this problem that I am overlooking?

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• using nginx with proxy_pass on a subdomain

  - by marcus3006

  a have a rails app that should listen on the subdomain redmine.example.com (using proxy_pass). all other requests for *.example.com should just redirect to a normal index.html. Here is my configuration: server { server_name www.example.com example.com; root /home/deploy/static/example; } upstream redmine { server unix:/tmp/redmine.socket fail_timeout=0; } server { # you could put a list of other domain names this application answers server_name redmine.example.com; root /home/deploy/rails/redmine/public; access_log /var/log/nginx/redmine_access.log; rewrite_log on; location * { proxy_pass http://redmine; } location ~ ^/(assets)/ { root /home/deploy/rails/redmine/public; gzip_static on; # to serve pre-gzipped version expires max; add_header Cache-Control public; } } anyone knows what's going wrong here? requests to example.com and www.example.com are handled correctly. when i try to acces redmine.example.com = "couldn't resolve host"

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• Is there anything like Heroku for PHP and/or .NET?

  - by Wayne M

  In my area PHP is very widespread, so is .NET. Ruby not so much; most places have never heard of it. For some personal things I am "forced" to choose Rails because I want to take advantage of Heroku - the ability to deploy and scale on the cloud very easily is the main reason. Also, they offer a small FREE plan, with no ads or strings attached, that I can use for demo sites or, in this case, for my business' static page; as a totally bootstrapped startup I have maybe $50 or so in initial capital and cannot afford to pay monthly fees while I'm getting started. Are there any similar offerings for other languages? Specifically, I really like the small, 5MB site for free that Heroku offers - is there anything like that for PHP and/or .NET? I'm not even that concerned about the "cloud" part, but that would be a nice bonus. If there is, I might be able to kill two birds with one stone and pick up a useful skill as I'm doing my own thing instead of using something that nobody else knows or cares about. I should add I'm specifically interested in something that offers a free plan. As I said, Heroku has a 5mb plan that you can have as many as you want for free; I have yet to find anything similar for any other platform (most of the "free" sites require you to have ugly banners on your page, or don't allow you to use your own domain name), and to be honest I'm not too thrilled about using Ruby on Rails for everything simply to take advantage of this. I'm asking this here because I already asked it on StackOverflow and someone suggested it would be better suited here.

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• If I ssh to a domain provided by dyndns, does my password go through them?

  - by D Connors

  I'm running Ubuntu on my work PC, and my work place provides me with a static IP address but not with a domain. It's sometimes useful for me to connect to that PC through ssh, but it's not common enough for me to instantly remember the IP number. So I set um a dyndns account, and associated a short and intuitive domain name to that IP. Here's my question, when I try to ssh to the domain, it asks me $ ssh [email protected] The authenticity of host 'something.there.foo (xx.xx.xx.xx)' can't be established. RSA key fingerprint is 'ALPHANUMERIC STRING' Are you sure you want to continue connecting (yes/no)? That surprised me a little bit. I have already registered the RSA fingerprint by connecting directly to the IP address. I thought the domain name was simply a convenient way of pointing me in the right direction (i. e. the ip address), but that message makes me think my data is actually going through their servers or something. Which one is it? Am I sending my password through someone else's server? Or is ssh just really really careful, thus warning me even if the final destination is a know host? The ssh server I'm using is the openssh-server package.

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• How can I generate filesystem images that are usable on many different virtualization systems?

  - by Mark Longair

  I have written a script that generates a root filesystem image (based on Debian lenny) suitable for User-Mode Linux. (Essentially this script creates a filesystem image, mounts it with a loop device, uses debootstrap to create a lenny install, sets up a static IP for TUN/TAP networking, adds public keys for login by SSH and installs a web application.) These filesystem images work pretty well with UML, but it would be nice to be able to generate similar images that people can use on alternative virtualization software, and I'm not familiar with these options at all. In particular, since the idea is to use this image as a standalone server for testing the web application, it's important that the networking works. I wonder if anyone can suggest what would be involved in customizing such root filesystem images such that they could be used with other virtualization software, such as VMware, Xen or as an Amazon EC2 instance? Two particular concerns are: If such systems don't use a raw filesystem image (e.g. they need headers with metadata or are compressed in some particular way) do there exist tools to convert between the different formats? I assume that in the filesystem, at least /etc/network/interfaces will have to be customized, but are more involved changes likely to be necessary? Many thanks for any suggestions...

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• How do I restrict access to certain web files/folders on an IIS 7.5 based web server?

  - by cpuguru

  We're moving a website that was previously hosted on Win2k3 & IIS 6 to a Win2k8 R2 & IIS 7.5 platform. The website is public, but we want to restrict anonymous access to certain files and folders such that the user would be prompted for a password to access them. If this were Apache, a simple .htaccess file would serve the purpose. However, since it's IIS 7.5 and we're serving up mainly static HTML files and a few classic ASP pages I'm in a bit of a quandry as to how to restrict access to individual files and folders for various committees such that attempts to committee_1's files and/or folders would prompt the user for a password and, if entered correctly, would serve up their files. Same thing for committee_2 and so on. Under IIS 6, we would take away the read privileges for IIS_IUSRS and create a user called "committee_1" with a password known by the group and give that user read privileges to the files/folders. There's got to be a better (and more secure) way. Reminder, these are not *.aspx pages that are being served up. Any suggestions on how to password protect key files and/or folders under IIS 7.5 are much appreciated.

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• C# SMTP virtual server doesn't send mail [closed]

  - by ragaei

  I have got the following Exception : System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. - System.Runtime.InteropServices.COMException (0x8004020F): The server rejected one or more recipient addresses. The server response was: 550 5.7.1 Unable to relay for [email protected] --- End of inner exception stack trace --- at System.RuntimeType.InvokeDispMethod(String name, BindingFlags invokeAttr, Object target, Object[] args, Boolean[] byrefModifiers, Int32 culture, String[] namedParameters) at System.RuntimeType.InvokeMember(String name, BindingFlags bindingFlags, Binder binder, Object target, Object[] providedArgs, ParameterModifier[] modifiers, CultureInfo culture, String[] namedParams) at System.Type.InvokeMember(String name, BindingFlags, invokeAttr, Binder binder, Object target, Object[] args, CultureInfo culture) at System.Web.Mail.SmtpMail.LateBoundAccessHelper.CallMethod(Type type, Object obj, String methodName, Object[] args) at System.Web.Mail.SmtpMail.LateBoundAccessHelper.CallMethod(Object obj, String methodName, Object[] args) public static void SendEmail(string _FromEmail, string _ToEmail, string _Subject, string _EmailBody) { // setup email header . SmtpMail.SmtpServer = "127.0.0.1"; MailMessage _MailMessage = new MailMessage(); _MailMessage.From = _FromEmail; _MailMessage.To = _ToEmail; _MailMessage.Subject = _Subject; _MailMessage.Body = _EmailBody; try { SmtpMail.Send(_MailMessage); } catch (Exception ex) { if (ex.InnerException != null) { String str = ex.InnerException.ToString(); } } }

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• Cron job checking for changes in Git repository

  - by HNygard

  We have just moved our server configs to a Git repository. Therefore there should not be any changes in any of the repository folders. I was thinking about how I could set up a cron job to check for any uncommited changes. How could a cron job be set up to check for changes in a Git repository? Greping the output of the git status command might just do it. Grep and cron jobs are not my strong side. Here are some sample outputs from git status: Standing the folder containing the git repository (e.g. /path/gitrepo/) with changed files: $ git status # On branch master # Changes not staged for commit: # (use "git add <file>..." to update what will be committed) # (use "git checkout -- <file>..." to discard changes in working directory) # # modified: apache2/sites-enabled/000-default # # Untracked files: # (use "git add <file>..." to include in what will be committed) # # apache2/conf.d/test no changes added to commit (use "git add" and/or "git commit -a") Standing in the folder when there is no changes: $ git status # On branch master nothing to commit (working directory clean) Update: Synced up with origin is not important. There should be no local changes. Local files that must be in place go into the .gitignore file. In addition to the server configs there are also git repos for content (static web sites, web apps, wordpress, etc). None of the repositories should have local changes. We might use Puppet in the long run since its being used for development of one of the web apps.

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• Open ports broken from internal network

  - by ksvi

  Quick summary: Forwarded port works from the outside world, but from the internal network using the external IP the connection is refused. This is a simplified situation to make the explanation easier: I have a computer that is running a service on port 12345. This computer has an internal IP 192.168.1.100 and is connected directly to a modem/router which has internal IP 192.168.1.1 and external (public, static) IP 1.2.3.4. (The router is TP-LINK TD-w8960N) I have set up port forwarding (virtual server) at port 12345 to go to port 12345 at 192.168.1.100. If I run telnet 192.168.1.100 12345 from the same computer everything works. But running telnet 1.2.3.4 12345 says connection refused. If I do this on another computer (on the same internal network, connected to the router) the same thing happens. This would seem like the port forwarding is not working. However... If I run a online port checking service on my external IP and the service port it says the port is open and I can see the remote server connecting and immediately closing connection. And using another computer that is connected to the internet using a mobile connection I can also use telnet 1.2.3.4 12345 and I get a working connection. So the port forwarding seems to be working, however using external IP from the internal network doesn't. I have no idea what can be causing this, since another setup very much like this (different router) works for me. I can access a service running on a server from inside the network both through the internal and external IP.

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• Unexpected behaviour in a Lotus Notes programmable table

  - by Mark B

  I'm designing a workflow database in Lotus Notes 6.0.3 (soon upgrading to 8.5), and my OS is Windows XP. I have recently tried converting a tabbed table into a programmable one. This was so that I could control which tab was displayed to the user when it was opened, so that they were presented with the most appropriate one for that document's progress through the workflow. That part of it works! One of the tabs features a radio button that controls visibility of the next tab, and a pair of cascading dialogue boxes. One contains the static list "Person":"Team", and the other has a formula based on the first: view:=@If(PeerReview = "Team"; "GroupNames"; "GroupMembers"); @Unique(@DbColumn(""; ""; view; 1)) The dialogue boxes have the property "Refresh fields on keyword change" selected. The behaviour that I wasn't expecting is this. If the radio button is set to "Yes" and a value is selected in one of the dialogue boxes, the table opens the next tab. If the radio button is set to "No" and a value is selected in one of the dialogue boxes, the entire table is hidden. I can duplicate the latter by switching off the "Refresh fields on keyword change" property on the dialogue boxes and instead pressing F9 after selecting a value. I have no idea why the former occurs, though. The table is called "RFCInfo", and I have a field on the form called "$RFCInfo" which is editable, hidden from all users who aren't me and initially set by a Postopen script, which I can post if necessary - it's essentially a Select Case statement that looks at a particular item value and returns the name of the table row relating to that value. Can anyone offer any pointers?

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• Verification of downloaded package with rpm

  - by moooeeeep

  I wanted to install a package on CentOS 6 via rpm (e.g., the current epel-release). EDIT: Of course I would always prefer the installation via yum but somehow I failed to get that specific package installed using this normal approach. As such, the EPEL/FAQ recommends Version 2. As I'm downloading the package through an insecure channel (http) I wanted to make sure that the integrity of the file is verified using information that is not provided with the downloaded file itself. Is this especially true for all of these approaches? I've seen various approaches to this on the internet: Version 1 rpm -ivh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-7.noarch.rpm Version 2 rpm -Uvh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-7.noarch.rpm Version 3 wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-7.noarch.rpm rpm --import https://fedoraproject.org/static/0608B895.txt rpm -K epel-release-6-7.noarch.rpm rpm -i epel-release-6-7.noarch.rpm I do not know rpm very well, so I wondered how they might differ? My guess (after reading the manpage) is that the first should only be used when the package is previously not installed, the second would additionally remove previous versions of the package after installation, the first two omit some verification steps before the actual installation that are done by rpm -K. So my main questions at this point are Are my guesses correct or am I missing something? Is the rpm --import ... implicitly done for the first two approaches as well, and if not, isn't it necessary to do so after all? Are these additional checks performed by rpm -K ... any relevant? What is the best (most secure, most reliable, most maintainable, ...) way of installing packages via rpm in general?

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• Developing high-performance and scalable zend framework website

  - by Daniel

  We are going to develop an ads website like http://www.gumtree.com/ (it will not be like this one but just to give you an ideea) and we are having some issues regarding performance and scalability. We are planning on using Zend Framework for this project but this is all that I'm sure off at this point. I don't think a classic approch like Zend Framework (PHP) + MySQL + Memcache + jQuery (and I would throw Doctrine 2 in there to) will fix result in a high-performance application. I was thinking on making this a RESTful application (with Zend Framework) + NGINX (or maybe MongoDB) + Memcache (or eAccelerator -- I understand this will create problems with scalability on multiple servers) + jQuery, a CDN for static content, a server for images and a scalable server for the requests and the rest. My questions are: - What do you think about my approch? - What solutions would you recommand in terms of servers approch (MySQL, NGINX, MongoDB or pgsql) for a scalable application expected to have a lot of traffic using PHP?...I would be interested in your approch. Note: I'm a Zend Framework developer and don't have to much experience with the servers part (to determin what would be best solution for my scalable application)

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• Running Solr on VPS problem

  - by Camran

  I have a VPS with Ubuntu OS. I run solr om my local machine (windows xp laptop) just fine. I have configured Jetty, and Solr just the same way as on my computer, but on the server. I have also downloaded the JRE and installed it on the server. However, whenever I try to run the start.jar file, the PuTTY terminal shows a bunch of text but gets stuck. I could pase the text here but it is very long, so unless somebody wants to see it I wont. Also, I cant view the solr admin page at all. Does anybody have experience in this kind of problem? Maybe java isn't correctly installed? It is a VPS so maybe installation is different. Thanks UPDATE: These are the last lines from the terminal, in other words, this is where it stops every time: INFO: [] webapp=null path=null params={event=firstSearcher&q=static+firstSearcher+warming+query+from+solrconfig.xml} hits=0 status=0 QTime=9 May 28, 2010 8:58:42 PM org.apache.solr.core.QuerySenderListener newSearcher INFO: QuerySenderListener done. May 28, 2010 8:58:42 PM org.apache.solr.handler.component.SpellCheckComponent$SpellCheckerListener newSearcher INFO: Loading spell index for spellchecker: default May 28, 2010 8:58:42 PM org.apache.solr.core.SolrCore registerSearcher INFO: [] Registered new searcher Searcher@63a721 main Also you should know that I installed jetty by just dragging the folders from my HD to the VPS server.

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• visually documenting web server configuration and infrastructure

  - by Alex Ciarlillo

  I have just finished a large re-organization and update of our institutions web server(s). This server hosts 3 virtual hosts, 3-4 blogs, 2 wikis, some legacy static HTML pages, and many hosted documents (PDF, .jpg, .xls). I have organized the site into a structure of something like: /var/www/sites/vhost1, vhost2, vhost3 .../wordpress/blogX .../mediawiki/wikiX Data is in a seperate directory structure so I can run a cron task over it to make sure it is all writeable and such. I then symlink to these data directories for each application. /var/www/data/vhost1, vhost2, vhost3 .../wordpress/blogX/uploads .../mediawiki/wikiX/images All Apache configs are in /etc/httpd/conf.d/vhosts.d/vhost1,2,3.conf On top of this there is also a testing server which mirrors this setup. Once changes are fully tested, they are rsynced down to the live server. All the wordpress installs and mediawiki installs are straight form SVN and updates are done by switching branches or "svn up". So my question is how can I best document to share with a) co-workers, b) possible future replacement, c) myself 6 months from now. Obviously I can make a wiki page, excel document, whatever and fill it with text, but I am looking for a more visual representation that I can use to explain the architecture to less-technical people. Ideally it would be awesome if this visual representation could then be expanded to get more technical details.

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• How do I setup an Alias on Apache with XAMPP on Linux ? (Permission problem)

  - by knarf

  XAMPP works fine but I want to have http://localhost/f to point to /home/knarf/prog/php/fwyxz. I've chmod -R 777 /home/knarf/prog/php/fwyxz I've added Alias /f /home/knarf/prog/php/fwyxz at the end of the httpd.conf And when I try to access it, I get a 403. From the apache error_log: [error] [client 127.0.0.1] (13)Permission denied: access to /f denied. I've already tried several solutions (userdir and symlinks) but they both failed with the same error. I've also tried to add this after the Alias: <Directory "/home/knarf/prog/php/fwyxz"> Order allow,deny Allow from all </Directory> But again, permission denied. Now if I change the User/Group under which apache runs from nobody to knarf, it seems to work (static files are ok) but PHP can't use/initialize sessions : [error] [client 127.0.0.1] PHP Warning: session_start() [function.session-start]: open(/tmp/sess_r5nrmu4ugqguqqe83rs53lq6k0, O_RDWR) failed: Permission denied (13) in /home/knarf/prog/php/fwyxz/index.php on line 3 [error] [client 127.0.0.1] PHP Warning: Unknown: open(/tmp/sess_r5nrmu4ugqguqqe83rs53lq6k0, O_RDWR) failed: Permission denied (13) in Unknown on line 0 [error] [client 127.0.0.1] PHP Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct () in Unknown on line 0 This is really frustrating.

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• ffmpeg What's the difference between -to and -t options?

  - by Vantuz

  Command ffmpeg -ss 5:09 -i foo.mkv -to 5:10 -c copy bar.mkv works exactly like ffmpeg -ss 5:09 -i foo.mkv -t 5:10 -c copy bar.mkv Is it a bug? Using Zeranoe git-bd75651 for Windows 64-bit >ffmpeg -version ffmpeg version N-57906-gbd75651 built on Nov 4 2013 18:09:19 with gcc 4.8.2 (GCC) configuration: --disable-static --enable-shared --enable-gpl --enable-version3 - -disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enabl e-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --ena ble-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmo dplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enab le-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis - -enable-libvpx --enable-libwavpack --enable-libx264 --enable-libxavs --enable-li bxvid --enable-zlib libavutil 52. 51.100 / 52. 51.100 libavcodec 55. 41.100 / 55. 41.100 libavformat 55. 21.100 / 55. 21.100 libavdevice 55. 5.100 / 55. 5.100 libavfilter 3. 90.101 / 3. 90.101 libswscale 2. 5.101 / 2. 5.101 libswresample 0. 17.104 / 0. 17.104 libpostproc 52. 3.100 / 52. 3.100

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• Debian: Unable to mount a second drive as a subdirectory inside of another partition.

  - by jkndrkn

  Hello. I have the following /etc/fstab: # /etc/fstab: static file system information. # # <file system> <mount point> <type> <options> <dump> <pass> proc /proc proc defaults 0 0 /dev/md1 / ext3 defaults,errors=remount-ro 0 1 /dev/md0 /boot ext3 defaults 0 2 /dev/md5 /home ext3 defaults 0 2 /dev/md3 /opt ext3 defaults 0 2 /dev/md6 /tmp ext3 defaults 0 2 /dev/md2 /usr ext3 defaults 0 2 /dev/md4 /var ext3 defaults 0 2 /dev/md7 none swap sw 0 0 /dev/sdc /home/httpd ext3 defaults 0 2 /dev/hda /media/cdrom0 udf,iso9660 user,noauto 0 0 /dev/sdc1 /mnt/usb/backup-1 auto defaults 0 0 I am unable to get /dev/sdc/ to mount at /home/httpd/ on reboot. The /home/httpd/ directory exists. Mounting via mount -t ext3 /dev/sdc /home/httpd works just fine. Mounting via mount -a generates the following error message: mount: you must specify the filesystem type This is, incidentally, the same message that I see while booting. The error message goes away if I comment out the line in fstab starting with /dev/sdc.

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