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How to Set Up Two-Factor Time-Based One-Time Password (TOTP) Authentication on iPhone Without Third-Party Apps

Unlocking an additional layer of safety to your iPhone is less difficult than you might suppose. With Two-Factor Time-Based One-Time Password (TOTP) authentication, you may bolster your device's protection and other website safety without relying on 1/3-party apps. Here's how you could set it up:

Free IP Geo location API using apex,visualforce in salesforce

Here is sample code to get IP (internet protocol) details in single click using  Visualforce page and apex class in salesforce.
https://freegeoip.app/
This is a free tool for finding IP address geo location. The database contains the following details: Country (code/name), Region (code/name), City etc.

Get IP details using VF page and apex class

IP Details



Visualforce Page:-

<apex:page controller="IPlocationtrack" docType="html-5.0" lightningStylesheets="true">
    <head>
        <apex:slds />
    </head>
    <div class="slds-scope">
        <apex:form id="out">

            <apex:input value="{!ipinput}"/>
            <apex:commandButton title="Get IP" action="{!ipfetch}" value="get IP" reRender="out" id="button"/>
            <table class="slds-table slds-table_cell-buffer slds-table_bordered">
                <thead>
                    <tr class="slds-line-height_reset">
                        <th class="" scope="col">
                            <div class="slds-truncate">IP</div>
                        </th>
                        <th class="" scope="col">
                            <div class="slds-truncate">country_code</div>
                        </th>
                        <th class="" scope="col">
                            <div class="slds-truncate">country_name</div>
                        </th>
                        <th class="" scope="col">
                            <div class="slds-truncate">region_code</div>
                        </th>
                        <th class="" scope="col">
                            <div class="slds-truncate">region_name</div>
                        </th>
                        <th class="" scope="col">
                            <div class="slds-truncate">city</div>
                        </th>
                        <th class="" scope="col">
                            <div class="slds-truncate">zip_code</div>
                        </th>
                        <th class="" scope="col">
                            <div class="slds-truncate">time_zone</div>
                        </th>
                        <th class="" scope="col">
                            <div class="slds-truncate">latitude</div>
                        </th>
                        <th class="" scope="col">
                            <div class="slds-truncate">longitude</div>
                        </th>
                        <th class="" scope="col">
                            <div class="slds-truncate">metro_code</div>
                        </th>
                    </tr>
                </thead>
                
                <tbody>
                    <tr class="slds-hint-parent">
                        <th data-label="Opportunity Name" scope="row">
                            <div class="slds-truncate" title="Cloudhub">
                                <a href="javascript:void(0);" tabindex="-1">{!objcls.ip} </a>
                            </div>
                        </th>
                        <td data-label="Account Name">
                            <div class="slds-truncate" title="">{!objcls.country_code}</div>
                        </td>
                        <td data-label="Close Date">
                            <div class="slds-truncate" title="">{!objcls.country_name}</div>
                        </td>
                        <td data-label="Prospecting">
                            <div class="slds-truncate" title="">{!objcls.region_code}</div>
                        </td>
                        <td data-label="Confidence">
                            <div class="slds-truncate" title="">{!objcls.region_name}</div>
                        </td>
                        <td data-label="Amount">
                            <div class="slds-truncate" title="">{!objcls.city}</div>
                        </td>
                        <td data-label="Contact">
                            <div class="slds-truncate" title="">
                                <a href="javascript:void(0);" tabindex="-1">{!objcls.zip_code}</a>
                            </div>
                        </td>
                        <td data-label="Contact">
                            <div class="slds-truncate" title="">
                                <a href="javascript:void(0);" tabindex="-1">{!objcls.time_zone}</a>
                            </div>
                        </td>
                        <td data-label="Contact">
                            <div class="slds-truncate" title="">
                                <a href="javascript:void(0);" tabindex="-1">{!objcls.latitude}</a>
                            </div>
                        </td>
                        <td data-label="Contact">
                            <div class="slds-truncate" title="">
                                <a href="javascript:void(0);" tabindex="-1">{!objcls.longitude}</a>
                            </div>
                        </td>
                        <td data-label="Contact">
                            <div class="slds-truncate" title="">
                                <a href="javascript:void(0);" tabindex="-1">{!objcls.metro_code}</a>
                            </div>
                        </td>
                    </tr>
                </tbody>
            </table>
        </apex:form>
    </div>
</apex:page>

 Apex Class:-
public class IPlocationtrack {
public string ipinput{get;set;}
public IPlocationtrack.IPdetails objcls{get;set;}
public IPlocationtrack (){
    ipinput='';
}

 public void ipfetch(){
    Http http = new Http();
    HttpRequest request = new HttpRequest();
    
    if(ipinput!=null || ipinput!=''){
        request.setEndpoint('https://freegeoip.app/json/'+ipinput);
    }else{
        request.setEndpoint('https://freegeoip.app/json/');
    }
    request.setMethod('GET');
    HttpResponse response = http.send(request);
    objcls= (IPdetails)JSON.deserialize(response.getbody(), IPdetails.class);
}

 public class IPdetails{
    public String ip{get;set;}
    public String country_code {get;set;}
    public String country_name {get;set;}
    public String region_code {get;set;}
    public String region_name {get;set;}
    public String city {get;set;}
    public String zip_code {get;set;}
    public String time_zone {get;set;}
    public Double latitude {get;set;}
    public Double longitude {get;set;}
    public Integer metro_code {get;set;}
}

 }
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