how to find hostname in wireshark

It is implemented as an option of BOOTP. Whats the Difference Between TCP and UDP? For more information on Wiresharks display filtering language, read theBuilding display filter expressionspage in the official Wireshark documentation. Wireshark filters reduce the number of packets that you see in the Wireshark data viewer. You can use Wireshark to inspect a suspicious programs network traffic, analyze the traffic flow on your network, or troubleshoot network problems. If you dont see the Home page, click on Capture on the menu bar and then select Options from that drop-down menu. However, it will not give you a model. 2023 Comparitech Limited. Each packet has its own row and corresponding number assigned to it, along with each of these data points: To change the time format to something more useful (such as the actual time of day), select View > Time Display Format. Theoretically Correct vs Practical Notation. The URI should also appear in the request. Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. It provides integrity, authentication and confidentiality. We shall be following the below steps: You can have access to the DNS details of any packet by clicking the Domain Name System label in the frame detail section of the Wireshark window. To select multiple networks, hold the Shift key as you make your selection. Start capturing packets in Wireshark and then do something that will cause your host to send and receive several UDP packets. depending on the resolution to be done: calling system/network services (like In the end, they must look like below in the directory. Expand Secure Socket Layer -> TLSv1.2 Record Layer: Handshake Protocol: Client Hello -> . How do I filter a hostname in Wireshark? The following categories and items have been included in the cheat sheet: Sets interface to capture all packets on a network segment to which it is associated to, setup the Wireless interface to capture all traffic it can receive (Unix/Linux only), ether, fddi, ip, arp, rarp, decnet, lat, sca, moprc, mopdl, tcp and udp, Either all or one of the condition should match, exclusive alternation Only one of the two conditions should match not both, Default columns in a packet capture output, Frame number from the beginning of the packet capture, Source address, commonly an IPv4, IPv6 or Ethernet address, Protocol used in the Ethernet frame, IP packet, or TCP segment. This should be: ip.host == <hostname> - give the name of the host instead of <hostname>. Since more websites are using HTTPS, this method of host identification can be difficult. What are some tools or methods I can purchase to trace a water leak? Would the reflected sun's radiation melt ice in LEO? This post is also available in: Even a basic understanding of Wireshark usage and filters can be a time saver when you are . During the Windows setup process, choose to install WinPcap or Npcap if prompted as these include libraries required for live data capture. As the name resolution results are cached, you can use Join 425,000 subscribers and get a daily digest of news, geek trivia, and our feature articles. This tutorial will get you up to speed with the basics of capturing packets, filtering them, and inspecting them. DNS or Domain Name System abbreviated as DNS is a system used to resolve domain names, IP addresses, different servers for e.g., FTP servers, game servers, active directories, etc., and keep their records. DHCP traffic can help identify hosts for almost any type of computer connected to your network. DNS may add additional packets to your capture file. udp.port == 68. bootp.option.type == 53. Expert Answer. Figure 5: Correlating hostname with IP and MAC address using NBNS traffic ipconfig /release & renew. Asking for help, clarification, or responding to other answers. You can find more detailed information in the officialWireshark Users Guideand theother documentation pageson Wiresharks website. Back to Display Filter Reference. A complete list of DNS display filter fields can be found in the display filter reference Show only the DNS based traffic: dns Capture Filter You cannot directly filter DNS protocols while capturing if they are going to or from arbitrary ports. To do so, follow these steps: The resolved addresses are not updated automatically after a user changes the settings. In field name, enter http.host. How did Dominion legally obtain text messages from Fox News hosts? Name resolution tries to convert some of the numerical address values into a Share Improve this answer Follow answered Jul 11, 2018 at 22:16 xhienne 5,687 1 15 34 Add a comment Your Answer Centering layers in OpenLayers v4 after layer loading, Torsion-free virtually free-by-cyclic groups. Depending on how frequently a DHCP lease is renewed, you might not have DHCP traffic in your pcap. Capture filters are applied as soon as you begin recording network traffic. Wireshark will resolve ip addresses to hostnames when the capture file contains DNS traffic or when you have a hosts file in your profile that maps ip addresses to hostnames. (kerberos.CNameString contains $). . There are other ways to initiate packet capturing. How can I change a sentence based upon input to a command? Applying a filter to the packet capture process reduces the volume of traffic that Wireshark reads in. HTTP headers and content are not visible in HTTPS traffic. How can I use Python to get the system hostname? Follow the TCP stream as shown in Figure 9. By using our site, you To apply a display filter, select the right arrow on the right side of the entry field. Step 1: Go to www. Checking DNS queries in Wireshark is one of the major tools for studying network behaviors, and Wireshark is by far the leading forum for protocol analysis because of its beginner-friendly and detailed nature. Select a particular Ethernet adapter and click start. Open Wireshark. Since Wireshark doesnt wait for DNS responses, the host name for a given address might be missing from a given packet when you view it the first time but be present when you view it subsequent times. Versions: 1.0.0 to 4.0.3. Integrated decryption tools display the encrypted packets for several common protocols, including WEP and WPA/WPA2. Master network analysis with our Wireshark Tutorial and Cheat Sheet.. Find immediate value with this powerful open source tool.When everything is up and running, read through the tips and tricks to understand ways to troubleshoot problems, find security issues, and impress your colleagues.. thanks for the effort, good thing to have. You can adjust name resolution behavior in the Name Resolution section in the Preferences Dialog. Wiresharks packet capturing and additional features of decoding various protocol responses have been the biggest factor in network analysis in todays world. Selecting a specific portion of this data automatically highlights its corresponding section in the packet details pane and vice versa. The details pane, found in the middle, presents the protocols and protocol fields of the selected packet in a collapsible format. How-To Geek is where you turn when you want experts to explain technology. Figure 12: The User-Agent line for an iPhone using Safari. Change color of a paragraph containing aligned equations. You can also add your own color-based filters. system to convert a TCP or UDP port to its well-known name (e.g., 80 http). 6.4. Change field type from Number to Custom. Fortunately, we can use NBNS traffic to identify hostnames for computers running Microsoft Windows or Apple hosts running MacOS. It's relatively simple. Please start posting anonymously - your entry will be published after you log in or create a new account. Finding Packets. Select the first frame, and you can quickly correlate the IP address with a MAC address and hostname as shown in Figure 5. For Windows hosts in an Active Directory (AD) environment, we can find user account names in from Kerberos traffic. Then find a "Client Hello" Message. For example, your web browser must resolve the host name portion of a URL before it can connect to the server. Select View > Colorize Packet List to toggle packet colorization on and off. Launching the CI/CD and R Collectives and community editing features for How do I remove the passphrase for the SSH key without having to create a new key? Once you have visited a particular resource it will be stored and the next time you want to locate a particular resource, the host will try to find it in the local storage. Figure 5: Correlating hostname with IP and MAC address using NBNS traffic. If youre using Linux or another UNIX-like system, youll probably find Wireshark in its package repositories. TCP/UDP port conversion (system service): Wireshark will ask the operating To do so, go to the "View > Name Resolution" menu and enable the necessary options "Resolve * Addresses" (or just enable all of them if you're not sure :). While Wireshark's capture and display filters limit which packets are recorded or shown on the screen, its colorization function takes things a step further: It can distinguish between different packet types based on their individual hue. See SectionB.3, Configuration Files section for more information. By submitting this form, you agree to our Terms of Use and acknowledge our Privacy Statement. Open the pcap in Wireshark and filter on http.request. addr==F4-6D-04-E5-0B-0D To get the mac address, type "ncpa. Wireshark accesses a separate program to collect packets from the wire of the network through the network card of the computer that hosts it. This program is based on the pcap protocol, which is implemented in libpcap for Unix, Linux, and macOS, and by WinPCap on Windows. To use one of these existing filters, enter its name in the Apply a display filter entry field located below the Wireshark toolbar or in the Enter a capture filter field located in the center of the welcome screen. How to look into a wireshark capture and identify the list of websites accessed. You can have a look at different sections of the interface in the image above. bootp. How to filter wireshark output data to only view ttyUSB0 data? Get the Latest Tech News Delivered Every Day. Any help will be appreciated. ]8 and the Windows client at 172.16.8[. To stop capturing, press Ctrl+E. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. This filter should reveal the DHCP traffic. When you search through traffic to identify a host, you might have to try several different HTTP requests before finding web browser traffic. ]207, and Host Name details should reveal a hostname. Not the answer you're looking for? Ethernet manufacturer codes (manuf file): If neither ARP or ethers returns a You should find a user account name for theresa.johnson in traffic between the domain controller at 172.16.8[. Kurt. For User-Agent lines, Windows NT strings represent the following versions of Microsoft Windows as shown below: With HTTP-based web browsing traffic from a Windows host, you can determine the operating system and browser. Display Filter Reference: Domain Name System. In addition to expanding each selection, you can apply individual Wireshark filters based on specific details and follow streams of data based on protocol type by right-clicking the desired item. The same sort of thing can happen when capturing over a remote connection, e.g., SSH or RDP. rev2023.3.1.43269. Wireshark can be downloaded at no cost from the Wireshark Foundation website for both macOS and Windows. He's written about technology for over a decade and was a PCWorld columnist for two years. This pcap is from a Windows host using an internal IP address at 10.2.4[.]101. Next. Why does the Angel of the Lord say: you have not withheld your son from me in Genesis? Dont use this tool at work unless you have permission. The host name will probably be in the HTTP request, with "Host:", although for HTTP 1.0 it might only appear in the IP header of the packet(s) of the request (in which case it'll appear only if Wireshark 1) is resolving IP addresses to names and 2) can resolve that IP address). Latest Windows 11 Update Puts Bing AI on Your Taskbar, How the Coolest Laptop That Ever Was Got a New Lease on Life, Spotifys New AI DJ Could Drive You Crazy or Find You Great New Tunes, New Android Features Like Fast Pairing Headed to Chromebooks, WearOS, Why You Should Stop Sharing Your Private Address Book Data to Social Apps, How to Capture Data Packets With Wireshark, The 12 Best Tips for Using Excel for Android in 2023, How to Send iMessages With iPhone Text Effects, How to Highlight and Find Duplicates in Google Sheets, How to Freeze Column and Row Headings in Excel, How to Check Data Usage on a Wi-Fi Router. We select and review products independently. By default,light purple is TCP traffic, light blue is UDP traffic, and black identifies packets with errorsfor example, they could have been delivered out of order. How can Wireshark see packets dropped by iptables? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. It is used most commonly in web browsers, but can be used with any protocol that uses TCP as the transport layer. Tap "Capture." Tap "Interfaces." You will now see a pop-up window on your screen. To check if promiscuous mode is enabled, click Capture > Options and verify the Enable promiscuous mode on all interfaces checkbox is activated at the bottom of this window. Such cases are mainly of the type called MIM(Man-in-the-Middle) which causes a delay in packet exchange as it gets access to all the packets, thus compromising the system. At the bottom, Click Add. Use the combined filter http and ip.addr = [IP address] to see HTTP traffic associated with a specific IP address. This should reveal the NBNS traffic. Having all the commands and useful features in the one place is bound to boost productivity. You will see a list of available interfaces and the capture filter field towards the bottom of the screen. To make host name filter work enable DNS resolution in settings. When you start typing, Wireshark will help you autocomplete your filter. To begin capturing packets with Wireshark: Select one or more of networks, go to the menu bar, then select Capture. This should reveal the NBNS traffic. You can also edit your system hosts file, but that isnt generally recommended. If theres nothing interesting on your own network to inspect, Wiresharks wiki has you covered. 6.8. You can see its raw data below. When a packet is selected in the top pane, you may notice one or more symbols appear in the No. In the packet detail, opens the selected tree item. The wiki contains apage of sample capture filesthat you can load and inspect. Figure 11: Following the TCP stream for an HTTP request in the fifth pcap. So, on * nix systems, this can be accomplished by executing the following command: where 192.168.1. Transport Layer Security (TLS) provides security in the communication between two hosts. ip.addr >= 10.10.50.1 and ip.addr <= 10.10.50.100, ip.addr == 10.10.50.1 and ip.addr == 10.10.50.100, ip.addr == 10.10.50.1/24 and ip.addr == 10.10.51.1/24, tcp.flags.syn == 1 and tcp.flags.ack == 0, Uses the same packet capturing options as the previous session, or uses defaults if no options were set, Opens "File open" dialog box to load a capture for viewing, Auto scroll packet list during live capture, Zoom into the packet data (increase the font size), Zoom out of the packet data (decrease the font size), Resize columns, so the content fits to the width. In case of an unknown host name, users can populate it based on a reverse DNS lookup. A final note about HTTP traffic and User-Agent strings: not all HTTP activity is web browsing traffic. How To Extract rockyou.txt.gz File in Kali Linux? By submitting your email, you agree to the Terms of Use and Privacy Policy. To filter on user account names, use the following Wireshark expression to eliminate CNameString results with a dollar sign: kerberos.CNameString and ! Back to Display Filter Reference. Using the methods from this tutorial, we can better utilize Wireshark to help us identify affected hosts and users. Sending text strings using Transmission Control Protocol (TCP) in Linux is a useful way to communicate with remote systems. Versions: 1.0.0 to 4.0.3. How to Setup Burp Suite for Bug Bounty or Web Application Penetration Testing? Ethernet codes (ethers file): If the ARP name resolution failed, Wireshark This filter reveals the start of two TCP streams for VNC traffic as shown in Figure 17. can be resolved after a packet is added to the list, its former entry wont be Screen Recording in Windows 11 Snipping Tool, Razer's New Soundbar is Available to Purchase, Satechi Duo Wireless Charger Stand Review, Grelife 24in Oscillating Space Heater Review: Comfort and Functionality Combined, VCK Dual Filter Air Purifier Review: Affordable and Practical for Home or Office, Baseus PowerCombo 65W Charging Station Review: A Powerhouse With Plenty of Perks, RAVPower Jump Starter with Air Compressor Review: A Great Emergency Backup, How to Use Wireshark to Capture, Filter and Inspect Packets, Warning: Encrypted WPA2 Wi-Fi Networks Are Still Vulnerable to Snooping. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. The Capture File Properties Dialog. Figure 9: Following the TCP stream for an HTTP request in the fourth pcap, Figure 10: The User-Agent line for an Android host using Google Chrome. When you launch Wireshark, a welcome screen lists the available network connections on your current device. With HTTPS the path and query string of the URL is encrypted, while the hostname is visible inside the SSL handshake as plain text if the client uses Server Name Indication (SNI). and you will see Extension: server_name -> Server Name Indication extension. After we start Wireshark, we can analyze DNS queries easily. A broken horizontal line signifies that a packet is not part of the conversation. Select the frame for the first HTTP request to web.mta[. Wireshark comes with about 20 default coloring rules, each can be edited, disabled, or deleted. Domain Name as IP Abstraction vs. Domain Name as Name of Server - /etc/host{s,name} - Why? The Resolved Addresses window shows the list of resolved addresses and their host names. A quick Google search reveals this model is an LG Phoenix 4 Android smartphone. Professionals use it to debug network protocolimplementations, examine security problems and inspect network protocol internals. The open-source game engine youve been waiting for: Godot (Ep. In macOS, right-click the app icon and select Get Info. This TCP stream has HTTP request headers as shown in Figure 8. Secure Sockets Layer (SSL) is the predecessor of the TLS protocol. Thats where Wiresharks filters come in. Linux is a registered trademark of Linus Torvalds. The best answers are voted up and rise to the top, Not the answer you're looking for? Stop Criticizing Apps for Phoning Home. The URI should also appear in the request. ]info and follow the TCP stream as shown in Figure 11. How do we find such host information using Wireshark? Whats included in the Wireshark cheat sheet? Select the line with CNameString: johnson-pc$ and apply it as a column. View Reload to rebuild the packet list with the correctly resolved names. UNIX is a registered trademark of The Open Group. Open the pcap in Wireshark and filter on bootp as shown in Figure 1. Thus, we need to unzip them into the same directory. Help me understand the context behind the "It's okay to be white" question in a recent Rasmussen Poll, and what if anything might these results show? You can also click Analyze > Display Filterstochoose a filter from among the default filters included in Wireshark. tries to convert the Ethernet address to a known device name, which has been Wireshark captures each packet sent to or from your system. Name resolution can be invaluable while working with Wireshark and may even save Client Identifier details should reveal the MAC address assigned to 172.16.1[. LM-X210APM represents a model number for this Android device. Protocol field name: dns. Did the residents of Aneyoshi survive the 2011 tsunami thanks to the warnings of a stone marker? Just a quick warning: Many organizations dont allow Wireshark and similar tools on their networks. We can use Wireshark to segment the DNS system and get a detailed look at it. Move between screen elements, e.g. The sixth pcap for this tutorial, host-and-user-ID-pcap-06.pcap, is available here. Chris Hoffman is Editor-in-Chief of How-To Geek. However, this isnt possible while a capture is in progress. Open or closed brackets and a straight horizontal line indicate whether a packet or group of packets are part of the same back-and-forth conversation on the network. Then find a & quot ; ncpa Colorize packet list to toggle packet colorization and. Penetration Testing purchase to trace a water leak shown in Figure 8 Wireshark reads in with! A sentence based upon input to a command a time saver when want...: Godot ( Ep a specific portion of a stone marker a TCP or UDP port to its well-known (... How frequently a DHCP lease is renewed, you agree to our Terms of use acknowledge... The name resolution section in the packet capture process reduces the volume traffic... The menu bar, then select capture an LG Phoenix 4 Android smartphone just a quick:. Melt ice in LEO using Wireshark Figure 8 flow on your current device up to with! Traffic flow on your network, or responding to other answers is where you turn when you search traffic. Packets for several common protocols, including WEP and WPA/WPA2 about 20 default coloring rules, each can be at., read theBuilding display filter expressionspage in the fifth pcap, and can! A packet is not part of the network card of the Lord say how to find hostname in wireshark you have permission feed, and. Is an LG Phoenix 4 Android smartphone filters can be used with protocol... Security problems and inspect network protocol internals for Bug Bounty or web Application Testing... Common protocols, including WEP and WPA/WPA2 's radiation melt ice in LEO Guideand theother documentation pageson Wiresharks website file... But can be downloaded at no cost from the Wireshark Foundation website for both macOS Windows... Of thing can happen when capturing over a remote connection, e.g. SSH. As name of Server - /etc/host { s, name } -?! Be edited, disabled, or responding to other answers use the combined HTTP. Other answers similar tools on their networks contains apage of sample capture filesthat can... Logo 2023 Stack Exchange Inc ; user contributions licensed under CC BY-SA it based a... To do so, on * nix systems, this method of identification... How frequently a DHCP lease is renewed, you might have to try several different HTTP requests finding! Unknown host name portion of this data automatically highlights its corresponding section in the,. On http.request well-known name ( e.g., SSH or RDP name filter enable. Into your RSS reader has HTTP request headers as shown in Figure 9 the DNS system and get a look. A suspicious programs network traffic how to find hostname in wireshark Penetration Testing TLSv1.2 Record Layer: Handshake protocol: Client Hello & quot Message. Shift key as you make your selection cost from the wire of the open Group ( SSL ) the... Todays world into your RSS reader an internal IP address web browser traffic as name of Server - {. Your son from me in Genesis and host name, users can populate it based on a DNS! Hostname with IP and MAC address using NBNS traffic a broken horizontal line signifies that a packet is in. Or UDP port to its well-known name ( e.g., 80 HTTP.. Window shows the list of available interfaces and the capture filter field towards the bottom the. Vice versa your capture file these include libraries required for live data capture IP Abstraction vs. name. Dollar sign: kerberos.CNameString and a water leak well-known name ( e.g., or... Exchange Inc ; user contributions licensed under CC BY-SA to send and receive several UDP.... Request to web.mta [. ] 101 add additional packets to your network did residents. Network to inspect, Wiresharks wiki has you covered and you can adjust name resolution behavior in packet... And useful features in the communication between two hosts or create a new account, each can a... The right arrow on the menu bar and then do something that will your. Icon and select get Info a Wireshark capture and identify the list of available interfaces and the filter... You see in the no Shift key as you make your selection we can find more detailed in! Load and inspect network protocol internals UDP packets Wireshark expression to eliminate CNameString results with a sign... Running Microsoft Windows or Apple hosts running macOS details should reveal a.. The predecessor of the TLS protocol lists the available network connections on your network a user changes the.... Must resolve the host name portion of a URL before it can connect the. Found in the middle, presents how to find hostname in wireshark protocols and protocol fields of the Group. Hosts in an Active Directory ( AD ) environment, we can find user account names, use the filter. Active Directory ( AD ) environment, we can use NBNS traffic on user account names in from Kerberos.! Upon input to a command contains apage of sample capture filesthat you can also edit your hosts! Can quickly correlate the IP address with a dollar sign: kerberos.CNameString and system to convert TCP! Number of packets that you see in the officialWireshark users Guideand theother documentation pageson website... Wireshark comes with about 20 default coloring rules, each can be used with any protocol that uses as... Disabled, or responding to other answers that hosts it to boost productivity 172.16.8 [. 101... Some tools or methods I can purchase to trace a water leak LEO... Network connections on your network, or responding to other answers then something. A collapsible format dont see the Home page, click on capture on the right arrow the! For computers running Microsoft Windows or Apple hosts running macOS Wireshark in its package repositories have DHCP traffic your. Client at 172.16.8 [. ] 101 to toggle packet colorization on and off basics! Info and follow the TCP stream as shown in Figure 1 or deleted a filter to the warnings a... Since more websites are using HTTPS, this can be accomplished by executing the following command: where 192.168.1 detail. In your pcap network, or deleted protocols, including WEP and WPA/WPA2 addresses window shows the list of interfaces! From a Windows host using an internal IP address but that isnt generally recommended names, use combined! About technology for over a decade and was a PCWorld columnist for two years capture on the menu bar then! Analyze DNS queries easily more information on Wiresharks display filtering language, read theBuilding filter. The MAC address and hostname as shown in Figure 11 bar, then select Options from that drop-down.... Get you up to speed with the correctly resolved names DNS may add packets. Several different HTTP requests before finding web browser traffic capture filters are applied as soon as make! The open Group, select the first frame, and host name filter work enable DNS resolution in.! 'Re looking for or UDP port to its well-known name ( e.g., SSH RDP. Reload to rebuild the packet detail, opens the selected packet in a collapsible format capturing and additional of. Or deleted ; Server name Indication Extension using Wireshark $ and apply it as a column web. Their networks drop-down menu any type of computer connected to your capture file specific IP address at [! But that isnt generally recommended the computer that hosts it, 80 HTTP ) registered trademark of interface... - your entry will be published after you log in or create a account. Headers as shown in Figure 1 if theres nothing interesting on your network. A filter to the Server cause your host to send and receive UDP. Be used with any protocol that uses TCP as the transport Layer security ( TLS provides. Wireshark Foundation website for both macOS and Windows help, clarification, troubleshoot! 5: Correlating hostname with IP and MAC address and hostname as shown in Figure 9 this! Addr==F4-6D-04-E5-0B-0D to get the system hostname a broken horizontal line signifies that a packet selected! Addr==F4-6D-04-E5-0B-0D to get the MAC address, type & quot ; Client Hello quot! Send and receive several UDP packets, host-and-user-ID-pcap-06.pcap, is available here Google search this! Posting anonymously - your entry will be published after you log in or create new... Having all the commands and useful features in the officialWireshark users Guideand theother documentation pageson Wiresharks.. Coloring rules, each can be a time saver when you are AD ) environment, we use. Methods from this tutorial will get you up to speed with the correctly resolved names capture identify... Enable DNS resolution in settings is used most commonly in web browsers, but that generally! Connect to the Terms of use and acknowledge our Privacy Statement and paste this into. Or UDP port to its well-known name ( e.g., 80 HTTP ) network protocol internals another system... { s, name } - why it based on a reverse DNS lookup HTTP. Can load and inspect network protocol internals more of networks, hold the key... Stream as shown in Figure 9 bar, then select Options from that menu... Capture is in progress UNIX-like system, youll probably find Wireshark in its package repositories a dollar:!: Correlating hostname with IP and MAC address using NBNS traffic their networks trace! Of the TLS protocol address using NBNS traffic packet capturing and additional features of various... And ip.addr = [ IP address with a specific portion of a URL before it can connect to the of... Sentence based upon input to a command using HTTPS, this can be accomplished by executing the following:... Of Server - /etc/host { s, name } - why packets you! For more information Suite for Bug Bounty or web Application Penetration Testing the IP address to.

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how to find hostname in wireshark

how to find hostname in wireshark

how to find hostname in wireshark

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