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  • Can nginx be an mail proxy for a backend server that does not accept cleartext logins?

    - by 84104
    Can Nginx be an mail proxy for a backend server that does not accept cleartext logins? Preferably I'd like to know what directive to include so that it will invoke STARTTLS/STLS, but communication via IMAPS or POP3S is sufficient. relevant(?) section of nginx.conf mail { auth_http localhost:80/mailproxy/auth.php; proxy on; ssl_prefer_server_ciphers on; ssl_protocols TLSv1 SSLv3; ssl_ciphers HIGH:!ADH:!MD5:@STRENGTH; ssl_session_cache shared:TLSSL:16m; ssl_session_timeout 10m; ssl_certificate /etc/ssl/private/hostname.crt; ssl_certificate_key /etc/ssl/private/hostname.key; imap_capabilities "IMAP4rev1" "UIDPLUS"; server { protocol imap; listen 143; starttls on; } server { protocol imap; listen 993; ssl on; } pop3_capabilities "TOP" "USER"; server { protocol pop3; listen 110; starttls on; pop3_auth plain; } server { protocol pop3; listen 995; ssl on; pop3_auth plain; } }

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  • Can Haproxy deny a request by IP if its stick-table is full?

    - by bantic
    In my haproxy configs I'm setting a stick-table of size 5 that stores every incoming IP address (for 1 minute), and it is set as nopurge so new entries won't get stored in the table. What I'd like to have happen is that they would get denied, but that isn't happening. The stick-table line is: stick-table type ip size 5 expire 1m nopurge store gpc0 And the whole configs are: global maxconn 30000 ulimit-n 65536 log 127.0.0.1 local0 log 127.0.0.1 local1 debug stats socket /var/run/haproxy.stat mode 600 level operator defaults mode http timeout connect 5000ms timeout client 50000ms timeout server 50000ms backend fragile_backend tcp-request content track-sc2 src stick-table type ip size 5 expire 1m nopurge store gpc0 server fragile_backend1 A.B.C.D:80 frontend http_proxy bind *:80 mode http option forwardfor default_backend fragile_backend I have confirmed (connecting to haproxy's stats using socat readline /var/run/haproxy.stat) that the stick-table fills up with 5 IP addresses, but then every request after that from a new IP just goes straight through -- it isn't added to the stick-table, nothing is removed from the stick-table, and the request is not denied. What I'd like to do is deny the request if the stick-table is full. Is this possible? I'm using haproxy 1.5.

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  • Establish connection with an IP camera behind a modem-router assigned with a private IP by Internet Service Provider?

    - by silvernightstar
    Most solutions out there require the modem-router to have been assigned a public IP by the ISP. After which, one can access the IP camera via a portforward setting on the router. However, my ISP only provides private IPs internal to their system (they probably have a limited pool of public IPs). So I am unable to view my IP cameras in the way described. I'm wondering if there's a way to work around this problem without having to need a public IP. Since, after all, two users on Yahoo Messenger or Facebook Chat are able to find one another and exchange data despite both sides being within the internal networks of their respective ISPs. Given that I only plan to view my IP cameras via iOS or Android running on a smartphone or tablet, any ready-to-use solutions out there?

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  • For a particular domain, how can I cache its JSON responses locally?

    - by Chris
    I'm coding the frontend of a web app that uses XHR to grab JSON data from a 3rd party. The 3rd party service is slow and because of its API design, we need to make a LOT of API requests every time I refresh the page to test some new code. It's making the development loop painful. The requests are GETs, POSTs and PUTs even though I'm pretty sure none of the requests are changing state. I want to go to localhost for the JSON rather than to this 3rd party API - simply to make my development process faster.

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  • What alternative is there to Nginx that supports http keep-alive between backends ?

    - by felace
    Hi. I recently asked a question about how to keep a backend connection persistent using Nginx, but found out it wasn't possible anyway, It is an HTTP/1.0 proxy without the ability for keep-alive requests yet. (As a result, backend connections are created and destroyed on every request.) It works all fine right now (since the connection between client and Nginx is kept alive and the result is simply the same), but I don't want to establish a new connection every single time a new request is received ,even if it's on a unix domain socket. So, what software (preferably open-source and not too tedious to configure) do you recommend to accomplish that such connections ?

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  • Load balance to proxies

    - by LoveRight
    I have installed several proxy programs whose IP addresses are, for example, 127.0.0.1:8580(use http), 127.0.0.1:9050(use socks5). You may regrard them as Tor and its alternatives. You know, certain proxy programs are faster than others at times, while at other times, they would be slower. The Firefox add-in, AutoProxy and FoxyProxy Standard, can define a list of rules such as any urls matching the pattern *.google.com should be proxied to 127.0.0.1:8580 using socks5 protocol. But the rule is "static". I want *.google.com to be proxied to the fastest proxy, no matter which one. I think that is kind of load balancing. I thought I could set a rule that direct request of *.google.com to the address the load balancer listens, and the load balancer forwards the request to the fastest real proxy. I notice that tor uses socks5 protocol and some other applications use http. I feel confused that which protocol should the load balancer use. I also start to wonder about the feasibility of this solution. Any suggestions? My operating system is Windows 7 x64.

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  • Analysing a Visual Foxpro application to derive requirements. Tools/approaches/practices?

    - by Kabeer
    Hello. In an upcoming project I am supposed to re-engineer a huge application built on Visual Foxpro into a web-application. The target platform is .Net. The application from the end-users' perspective is very complex (complex forms, reports, navigation, etc). The sorry state is that there are no documents available from which I can derive, business processes, business rules, work-flows, validations, application state, etc. I can gather some requirements from end-users but it cannot be complete from any perspective. Maneuvering through the code would be tedious & time consuming, given the millions of lines of code. Therefore I am looking for a tool that can help me in code analysis. My googling attempt didn't help me at least for a Visual Foxpro code base. Besides, I will appreciate if someone can share processes/approaches/techniques to establish the requirements as far as possible. BTW, this link didn't quite help.

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  • calculater by using reverse polish notation and using a stack

    - by programmer
    hello everyone I have a segmentation fault ,can you help please? if i have this operater "3 5 +" that mean 3+5 and like "9 8 * 5 + 4 + sin", "sin(((9*8)+5)+4)" so my idea is check if the first and second are numbers and push theem in the stack then when i have operator i pop the numbers and make the calculation then push the answer again. ` typedef struct st_node { float val; struct st_node *next; } t_node; typedef t_node t_stack; // a function to allocate memory for a stack and returns the stack t_stack* fnewCell() { t_stack* ret; ret = (t_stack*) malloc(sizeof(t_stack)); return ret; } // a function to allocate memory for a stack, fills it with value v and pointer n , and returns the stack t_stack* fnewCellFilled(float v, t_stack* n) { t_stack* ret; ret = fnewCell(); ret->val = v; ret->next =n; return ret; } //function to initialize stack void initstack(t_stack** stack) { fnewCellFilled(0,NULL); } // add new cell void insrtHead(t_stack** head,float val) { *head = fnewCellFilled(val,*head); } //function to push the value v into the stack s void push(t_stack **s, float val) { insrtHead(s,val); } //function to pop a value from the stack and returns it int pop(t_stack **s) { t_stack* tmp; int ret; tmp = (*s)->next; ret = (*s)->val; free(*s); (*s) = tmp; return ret; } int isempty (t_stack *t) { return t == NULL; } //function to transfer a string(str) to int (value) //returns -1 when success , i otherwise int str2int(char *str,int *value) { int i; *value = 0; int sign=(str[0]=='-' ? -1 : 1); for(i=(str[0]=='-' ? 1 : 0);str[i]!=0;i++) { if(!(str[i]>=48 && str[i]<=57)) // Ascii char 0 to 9 return i; *value= *value*10+(str[i]-48); } *value = *value * sign; return -1; } //a function that takes a string, transfer it into integer and make operation using a stack void function(t_stack *stack, char *str) { char x[10]=" "; int y,j,i=0,z; printf("++\n"); if(str[i] != '\0') { strcpy(x, strtok(str, " ")); z= str2int(x, &y); if(z == -1) { push(&stack,y); i=i+2; } } while(str[i] != '\0') { strcpy(x, strtok(NULL, " ")); z= str2int(x, &y); if(z == -1) { printf("yes %d",y); push(&stack,y); i=i+2; } else { y=pop(&stack); j=pop(&stack); if(x[0] == '+' ) push(&stack,y+j); else if (x[0] == '-' ) push(&stack,j-y); else if(x[0] == '*' ) push(&stack,j*y); else if(x[0] == '/') push (&stack ,j/y); } } } int main() { t_stack *s; initstack(&s); char *str="3 5 +"; function(s,str); return 0; } `

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  • Deploying Pylons with Nginx reverse proxy?

    - by resopollution
    Is there a tutorial on how to deploy Pylons with Nginx? I've been able to start nginx and then serve pylons to :8080 with paster serve development.ini However, I can't seem to do other stuff as pylons locks me into that serve mode. If I try to CTRL+Z out of pylons serving to do other stuff on my server, pylons goes down. There must be a different method of deployment. PS - I've done all this: http://wiki.pylonshq.com/display/pylonscookbook/Running+Pylons+with+NGINX?showComments=true#comments I just have no clue what to do with the Pylons app other than paster serve. Not sure if tehre is a different method.

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  • Use multiple WSGI mount points in Apache with an Nginx reverse proxy

    - by Thomas
    I am trying to set up multiple virtual hosts on the same server with Nginx and Apache and have run into a curious configuration issue. I have nginx is configured with a generic upstream to apache. upstream backend { server 1.1.1.1:8080; } I'm trying to set up multiple subdomains in nginx that hit different mountpoints in apache. Each would act like the following examples. server { listen 80; server_name foo.yoursite.com; location / { proxy_pass http://backend/bar/; include /etc/nginx/proxy.conf; } ... } server { listen 80; server_name delta.yoursite.com; location / { proxy_pass http://backend/gamma/; include /etc/nginx/proxy.conf; } ... } These mountpoints are pointed at django projects, however each of the url entries are coming back prepended with the apache mountpoint path. So, if I called the django url entry for foo.yoursite.com/wiki/biz/, django appears to be returning foo.yoursite.com/bar/wiki/biz/. Similarly, if I call for the url entry for delta.yoursite.com/wiki/biz/, I get delta.yoursite.com/gamma/wiki/biz/. Is there any way get rid of the prefix being returned on the url entries by django and apache?

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  • reverse this function

    - by ooo
    i have code that takes a csharp datetime and converts it into a long to plot in the "flot" graph. here is the code public static long GetJavascriptTimestamp(DateTime input) { TimeSpan span = new TimeSpan(DateTime.Parse("1/1/1970").Ticks); DateTime time = input.Subtract(span); return (long)(time.Ticks / 10000); } I now need an opposite function where i take this long value and get the csharp datetime object back. any idea if the above method can be reversed ?

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  • Inverse Logistic Function / Reverse Sigmoid Function

    - by Chanq
    I am currently coding up a fuzzy logic library in java. I have found the equations for all the standard functions - Grade, inverseGrade, Triangle, Trapezoid, Gaussian. However, I can't find the inverse of the sigmoid/ logistic function. The way I have written the logistic function is java is : //f(x) = 1/(1+e(-x)) public double logistic(double x){ return (1/(1+(Math.exp(-x))); } But I can't work out or find the inverse anywhere. My algebraic/calculus abilities are fairly limited, hence why I haven't been able to work out the inverse of the function. Any hints or pointers would be a big help. Thanks

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  • Determine iPhone user's country

    - by alku83
    I need to determine at startup what country a user is in, for an iPhone application. Presumably I will have to turn on location services and do some sort of reverse geocoding. I don't really want to use a third party web service if possible, are there any other suggestions for determining country from what location services provides? Initially, I only need to check whether the user is inside the US or not, but this may change in the future to add more countries. I understand that location can not always be determined or the user may have location services turned off. Basically, I just need to know if the user is detected as being inside the US, in order to turn off a specific feature.

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  • Reverse ?? operator

    - by HeavyWave
    Is it possible to do something like this in C#? logger != null ? logger.Log(message) : ; // do nothing if null or logger !?? logger.Log(message); // do only if not null

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  • how to using jquery get select element has MULTIPLE mode and reverse

    - by Rueta
    Hi everyone! I have a stack with my work today. My stack here: I have a select html element and it has MULTIPLE mode: <select class="test" MULTIPLE></select> (MULTIPLE mode also type as : multiple="multiple" i inclue here) <select class="test" multiple='multiple'></select> now i only want select this element in many normal select element: <select class="test" ></select> <select class="test" ></select> <select class="test" multiple='multiple'></select> <select class="test"> </select> i was using jQ like this: $(".test[!MULTIPLE]").css('border','solid 1px red'); but all select element has border red; How can i get only select element MULTIPLE. And get select not MULTIPLE mode?

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  • Unable to reverse seemingly simple rails migration - getting "altered_table.column may not be NULL"

    - by brad
    I have a table 'invoices' in my development database (sqlite3) populated with a small amount of test data. I wanted to add a column 'invoice_number' to it and set up a migration like so: class AddInvoiceNumberColumnToInvoices < ActiveRecord::Migration def self.up add_column :invoices, :invoice_number, :integer end def self.down remove_column :invoices, :invoice_number end end I ran rake db:migrate and it seemed to migrate just fine. However, when I tried to access this column through ActiveRecord it didn't seem to be there. I decided to undo this migration and try again (not sure what I was going to try but I thought I'd start by undoing it) with rake db:migrate VERSION='whatever_the_migration_before_this_one_was_called'. This failed with the error message == AddInvoiceNumberColumnToInvoices: reverting =============================== -- remove_column(:invoices, :invoice_number) rake aborted! An error has occurred, this and all later migrations canceled: altered_invoices.invoice_number may not be NULL I can't find any documentation of this error. Is anyone able to explain what I have done wrong, and more importantly how I can fix this?

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  • Polymorphic association in reverse

    - by Erik
    Let's say that I have two models - one called Post and one other called Video. I then have a third model - Comment - that is polymorphically associated to to each of these models. I can then easily do post.comments and video.comments to find comments assosciated to records of these models. All easy so far. But what if I want to go the other way and I want to find ALL posts and videos that have been commented on and display these in a list sorted on the date that the comment was made? Is this possible? If it helps I'm working on Rails 3 beta.

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  • ASP.net dynamic controls issue when trying to reverse them

    - by Mattias Sandsäter
    I add some DropDownList dynamically to my form. It seems to work as it should when I use ...Controls.Add(dropdownlist), but in an attempt to turn them around and show them in reversed order I have tried to use ....Controls.AddAt(0, dropdownlist) However, this causes some strange behaviour. Before we dig in to the code, is there something I should know about dynamic adding, and more specific the AddAt()-method that usually causes trouble? Short description about what I do I start with a DropDownList (level1), when I choose something there, a new list should be added (level2) and so on. You can say you go your way down in a menu structure. Whenever you want you can change your choice at whatever level you want (of course not on later levels that you dont see yet). So lets say you are down to level 4 (You then have four boxes) and change your choice at level1, when the page reloads you are back to two boxes. http://forums.asp.net/p/885886/927411.aspx It seems that my problem was discussed here, but I didn´t see any solution about how I can acheive my intended behaviour.

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  • Reverse ordered list for jquery submitted comments

    - by g-man
    Hey guys I have one more question lol. I am using a script that allows users to submit comments through jquery ajax, however when they are submitted, the submitted comments submit at the bottom of the other comments which are sorted in descending order (newest on top) when the page first loads (due to mysql query). Is there a way to make it submit on top through some sort of sorting javascript function? function prepare(response) { var d = new Date(); count++; d.setTime(response.time*1000); var mytime = d.getHours()+':'+d.getMinutes()+':'+d.getSeconds(); var string = '<li class="shoutbox-list" id="list-'+count+'">' + '<span class="date">'+mytime+'</span>' + '<span class="shoutbox-list-nick"><a href="statistics.php?user='+response.user+'">'+response.user+'</a>:</span>' + '<span class="msg">'+response.message+'</span>' +'</li>'; return string; } function success(response, status) { if(status == 'success') { lastTime = response.time; $('#daddy-shoutbox-list').append(prepare(response)); $('input[name=message]').attr('value', '').focus(); $('#list-'+count).fadeIn('slow'); timeoutID = setTimeout(refresh, 3000); } } <div id="daddy-shoutbox"> <ol id="daddy-shoutbox-list"></ol> </div>

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  • Reverse factorial

    - by dada
    Well, we all know that if N is given it's easy to calculate N!. But what about reversing? N! is given and you are about to find N - Is that possible ? I'm curious.

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  • Action bar with Search View. Reverse compatibility issues

    - by suresh
    I am building a sample app to demonstrate SearchView with filter and other Action Bar items. I am able to successfully run this app on 4.2(Nexus 7). But it is not running on 2.3. I googled about the issue. Came to know that i should use SherLock Action bar. I just went to http://actionbarsherlock.com/download.html, downloaded the zip file and added the library as informed in the video: http://www.youtube.com/watch?v=4GJ6yY1lNNY&feature=player_embedde by WiseManDesigns. But still I am unable to figure out the issue. Here is my code: SearchViewActionBar.java public class SearchViewActionBar extends Activity implements SearchView.OnQueryTextListener { private SearchView mSearchView; private TextView mStatusView; int mSortMode = -1; private ListView mListView; private ArrayAdapter<String> mAdapter; protected CharSequence[] _options = { "Wild Life", "River", "Hill Station", "Temple", "Bird Sanctuary", "Hill", "Amusement Park"}; protected boolean[] _selections = new boolean[ _options.length ]; private final String[] mStrings = Cheeses.sCheeseStrings; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); getWindow().requestFeature(Window.FEATURE_ACTION_BAR); setContentView(R.layout.activity_main); // mStatusView = (TextView) findViewById(R.id.status_text); // mSearchView = (SearchView) findViewById(R.id.search_view); mListView = (ListView) findViewById(R.id.list_view); mListView.setAdapter(mAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mStrings)); mListView.setTextFilterEnabled(true); //setupSearchView(); } private void setupSearchView() { mSearchView.setIconifiedByDefault(true); mSearchView.setOnQueryTextListener(this); mSearchView.setSubmitButtonEnabled(false); //mSearchView.setQueryHint(getString(R.string.cheese_hunt_hint)); } @Override public boolean onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.searchview_in_menu, menu); MenuItem searchItem = menu.findItem(R.id.action_search); mSearchView = (SearchView) searchItem.getActionView(); //setupSearchView(searchItem); setupSearchView(); return true; } @Override public boolean onPrepareOptionsMenu(Menu menu) { if (mSortMode != -1) { Drawable icon = menu.findItem(mSortMode).getIcon(); menu.findItem(R.id.action_sort).setIcon(icon); } return super.onPrepareOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { String c="Category"; String s=(String) item.getTitle(); if(s.equals(c)) { System.out.println("same"); showDialog( 0 ); } //System.out.println(s); Toast.makeText(this, "Selected Item: " + item.getTitle(), Toast.LENGTH_SHORT).show(); return true; } protected Dialog onCreateDialog( int id ) { return new AlertDialog.Builder( this ) .setTitle( "Category" ) .setMultiChoiceItems( _options, _selections, new DialogSelectionClickHandler() ) .setPositiveButton( "SAVE", new DialogButtonClickHandler() ) .create(); } public class DialogSelectionClickHandler implements DialogInterface.OnMultiChoiceClickListener { public void onClick( DialogInterface dialog, int clicked, boolean selected ) { Log.i( "ME", _options[ clicked ] + " selected: " + selected ); } } public class DialogButtonClickHandler implements DialogInterface.OnClickListener { public void onClick( DialogInterface dialog, int clicked ) { switch( clicked ) { case DialogInterface.BUTTON_POSITIVE: printSelectedPlanets(); break; } } } protected void printSelectedPlanets() { for( int i = 0; i < _options.length; i++ ){ Log.i( "ME", _options[ i ] + " selected: " + _selections[i] ); } } public void onSort(MenuItem item) { mSortMode = item.getItemId(); invalidateOptionsMenu(); } public boolean onQueryTextChange(String newText) { if (TextUtils.isEmpty(newText)) { mListView.clearTextFilter(); } else { mListView.setFilterText(newText.toString()); } return true; } public boolean onQueryTextSubmit(String query) { mStatusView.setText("Query = " + query + " : submitted"); return false; } public boolean onClose() { mStatusView.setText("Closed!"); return false; } protected boolean isAlwaysExpanded() { return false; } }

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  • Compass, Haml alongside Sass installation took over ERB, need to reverse

    - by Nik
    Hi all, I've been trying out Compass for a few days now, and just now I ran into some strange problem: The past few days, as usual, whenever I use my textmate shortcut to create a partial if not already created, that partial will be created in .erb format, but then just now, a few minutes ago, I have no idea what I have done, when I tried to create a new partial, it is prompting me to create one that ends with .haml. when I didn't create that and manually created a .erb partial with all the code that was suppose to go in there, I tried to load the page that uses that partial, it says the partial is missing. That kind of tells me now Rails is looking for Haml templates instead of erb templates. That means all my other partials are useless. And indeed they have become!!! I don't know how this happened. It was working fine with ERB just minutes ago, and suddenly Haml took over and demand all partials be written in it. So my question: Can I keep both Haml and Erb in one Rails application and use mostly erb except for Sass/compass related files? Where in Rails does it state what templating format (erb | haml) it should use? Thanks!

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