Mikrotik firewall log. by WeWiNet » Tue Mar 10, 2020 2:51 pm.

, proto TCP (ACK,FIN), 10. I am working on ELK (Elasticsearch, Logstash and Kibana). 30 to-ports=22 protocol=tcp in-interface=ether1-gateway dst-port=12345. 203. hotspot atau tujuan kita. We also improved the overall security of the router by implementing simple steps to harden it. in /ip firewall filter. 30. 40. Layer-7 protocol detection. By default, MikroTik RouterOS operates on a "default deny" principle. Scripts can be stored in Script repository or can be written directly to console . estdata Member Candidate Posts: 100 Joined: Mon Feb 20, 2012 8:05 pm. And in the firewall I have a an action=log rule to log packets not accepted. Feb 18, 2019 · And replace it with - this is unneeded, but at least you'll see counters incrementing - the following: Code: Select all. out-bridge-port (name; Default: ) Actual interface the packet is leaving the router if the outgoing interface is bridge. 88. IP addresses (network or list) and address types (broadcast, local, multicast, unicast) port or port range. 168. It has its own RouterBOARD that might be utilised as an active network element. How can I see/ enable the firewall logs? For example, I want to see when "deny" rule is triggered, from where was triggered the The MikroTik RouterOS supports Universal Plug and Play architecture for transparent peer-to-peer network connectivity of personal computers and network-enabled intelligent devices or appliances. This puts a log prefix for all incoming ssh connections to host 192. To stop SSH/FTP attacks on your router, follow this advice. Nov 18, 2017 · Learn MikroTik RouterOs Tutorial Series (english)This tutorial will show you how to manage, configure and generate you own logs on your router. Then each time NAT is done you will see log info. Feb 1, 2021 · 2nd Rule: Enable Firewall to log and drop. and add firewall. To avoid this, add regular firewall matchers to reduce the amount of data passed to layer-7 filters repeatedly. add chain=input protocol=tcp dst-port=21 src-address-list=ftp_blacklist action=drop \. Navigate to IP -> DHCP Server window, ensuring the DHCP tab is selected; Click on the DHCP Setup button to open a new dialog; Select the bridge1 as the DHCP Server Interface and click Next; Follow the wizard to complete the setup. 1. /ip firewall filter. 1beta4, it is implemented as a JSON wrapper interface of the console API. I just want to be sure I am reading this correctly. rx-bits-per-second: 27. I need to parse IPV6 log from firewall. 2) Configure separate logging actions for firewall !info. Universal Plug and Play is completely Aug 3, 2018 · In Winbox, choose System | Logging. To save currently sniffed packets in a specific file save command is used. ketikan “ping 192. Hello Dear MikroTIKERS! I see in my log this->. 1 merupakan ip dari ether3 yaitu. 255:68,len 328. Jun 9, 2011 · Previously I worked with IP-filter, now I getting started with Mikrotik FW Filter. add action=drop chain=input comment="some ip accessing port 522" log=yes log-prefix=adr-blocked: src-address=45. Mangle is a kind of 'marker' that marks packets for future processing with special marks. An efficient router with RouterOS (based on Linux) supports, except for routing, a VPN server (Virtual Private Network) and the above mentioned Edit space details. stateful packet inspection. But it still shows under "firewall connections" with TCP state "time wait" or "established", even after reboot. traffic classification by: source MAC address. If there are only from time to time logs then it should be ok. MikroTik company develops so-called RouterOS that involves firewall as well. IPv4 firewall Protect the router itself. add action=drop chain=input comment="defconf: drop invalid" connection-state=invalid. Those firewall functions are applied on the MikroTik RouterOS. /ip cloud set ddns-enabled=no update-time=no. *Merah = ethernet yang melakukan ping. I want to receive emails only for certain firewall logs, so I have setup the following rules on my CRS125-24G-1S-RM rOS 6. In the Winbox Firewall window, you can switch to the Connections tab, to see current connections to/from/through your router. 0 chain=input action=accept protocol=icmp src-address-list=LAN log=no. Script file (with extension ". Protect the Device. 1) Jun 20, 2018 · invalid forward: in:bridge out:ether1, src-mac . You haven't mentioned which method you have found, as standard logging function in RouterOS will not log such info. 8. 102:80, len 52. in realtime? by esquirrel » Fri Mar 16, 2018 6:44 pm. Following these steps, the connected PC should now obtain a dynamic IP address. Absolutely stop reading past this point: "We strongly suggest to keep default firewall on. Dec 25, 2015 · 1. Apr 21, 2016 · Dokonce mikrotik je tak vychytaný, že můžeme vyvolat akci, při které si mikrotik automaticky přidá adresu do address listu (opět buď trvale/Permanently nebo dočasně temporarily). Pengertian Firewall pada Mikrotik beserta penjelasan lengkap nya akan kita bahas pada segmen tutorial mikrotik ini. /ip firewall connection print file=connections. Firewall filter configuration is accessible from ip/firewall/filter menu for IPv4 and ipv6/firewall/filter menu for IPv6. Hotspot (captive portal) - uses web-proxy and it is capable of using only the default routing table, at the moment. This i We will apply the following protection rules to protect the network and our router as protection and design of the UTM firewall we are creating. Use at your own risk , pay attention to license and warranty ! Jul 25, 2017 · /ip firewall filter add chain=forward in-interface-list=Trusted out-interface=ether1 action=accept comment="Trusted nets to internet" When new interfaces are added to the router all that needs to be done is adding the interface to the appropriate interface list, and the correct firewall rules will now apply. It allows to create, read, update and delete resources and call arbitrary console commands. MikroTik RouterOS has very powerful firewall implementation with features including: stateless packet inspection. This manual provides an introduction to RouterOS built-in powerful scripting language. To show the default MikroTik firewall rules, execute: [ admin @ MikroTik] > /system default-configuration print. Jan 2, 2012 · Email Logging firewall prefix. A reverse operation is applied to the reply packets traveling in the other direction. Click Copy and change the Action dropdown to disk. MikroTik: Stateful Firewall as Hardware. 0/24 [admin@MikroTik] > ip service print Flags: X - disabled, I - invalid # NAME PORT ADDRESS CERTIFICATE 0 telnet 23 1 XI ftp 21 2 XI www 80 3 ssh 22 4 XI www-ssl 443 none 5 XI api 8728 6 winbox 8291 192. Commands: /tool sniffer start, /tool sniffer stop, /tool sniffer save. When the router sees a close of the TCP session (FIN/ACK FIN) it Jul 14, 2011 · Hi, i was attempt to type a script that show me and log the firewall address list (Static and Dynamic IP's ), but it does not run. This subnet will have full access to the router. com/p/mikrotik-security-engineer-with-labs - In this video, I will explain to you what is the function of the 3 different chains (f May 19, 2022 · วิธีส่ง Log Mikrotik ไปที่ LogServer. Pages; Blog; Page tree Sep 1, 2021 · In the previous tutorial, we installed and configured a brand new MikroTik hAP ac³ router for connection to the Internet. This repository holds a number of scripts to manage RouterOS devices or extend their functionality. The dynamic rule you want to get rid of (which is not possible) is there because the action=fasttrack-connection rule exists and is enabled (or at least it used to be like Apr 26, 2023 · Default MikroTik Firewall Rules. +50. วิธีเก็บ Log & ส่ง Log MikroTik To Kiwi Syslog วันนี้ทีมงานได้นำบทความที่เกียวกับการเก็บ Log file จากอุปกรณ์ MikroTik โดยเป็นการสั่งให้อุปกรณ์ MikroTik นั้นทำการส่ง Log file ไปเก็บ Jun 7, 2014 · To write that line you have many ways: Winbox or Web Interface: Go the the option "New Teminal" and a new windows of CLI will open. rsc") can contain any console command including complex scripts. xxx:33250, len 52 There are several lines of this log and this happens on different ports. However those logged packets seems to be logged as both info and firewall topics so my memory log on the firewall is filled with firewall entries. Connections are switched to fasttrack mode by hitting an action=fasttrack-connection rule in the forward chain of /ip firewall filter. Starting from RouterOS v7. Thus is caused by the premature deletion of the connection entry for TCP in Linux. RouterOS general discussion. Jun 20, 2018 · invalid forward: in:bridge out:ether1, src-mac . If we have a set of firewall filter rules already on our Mikrotik, we can just simply enable logging. Jul 24, 2023 · 2) Two firewall rules (one for each list) that matches on three conditions : destination address isn't in the LAN, source address list matches the expected (IOT or TVS), and connection state is "new" — the action is Accept, and I ticked the "log" checkbox, with a Prefix of the appropriate label (IOT or TVS) Root menu command import allows running configuration script from the specified file. Firewall MikroTik adalah salah satu fitur sistem keamanan yang berfungsi untuk mengawasi dan mengontrol lalu lintas data yang masuk dan keluar dari jaringan. Pada RouterOS MikroTik terdapat sebuah fitur yang disebut dengan ' Firewall '. This type of NAT is performed on packets that are destined for the natted network. Cool Tip: Factory reset of a MikroTik router! Read more →. Generally, there are 3 main functions for the firewall: Stop unauthorized access. 1a # # This script adds ip of any address that hits a firewall block rule for 24hour # Schedule the script to run every 5 min #:log info message="RUNNING DYNAMIC MikroTik caching proxy, socks, UPnP, and cloud services: /ip proxy set enabled=no. Mikrotik suppo Filter Rules serve to define firewall rules that determine how the router processes incoming and outgoing network traffic. x/x disabled=no list=support. Firewall Log Druvis explains how to set up logs in MikroTik RouterOS, what do the different log types mean and how to use them. /ip firewall address-list add address=x. add chain=dstnat action=dst-nat to-addresses=192. connection-state=new action=log /ip firewall filter add chain=forward Jan 18, 2013 · by sindy » Fri Jul 03, 2020 10:14 pm. Artikel kesembilan dari seri tutorial MikroTik akan gua bahas konsep dan konfigurasi firewall filter dan firewall address list. Other tweaks and configuration options to harden your router's security are described later. UPnP enables data communication between any two devices under the command of any control device on the network. A denial-of-service (DoS) or distributed denial-of-service (DDoS) attack is a malicious attempt to disrupt normal traffic of a targeted server, service, or network by overwhelming the target or its surrounding infrastructure with a flood of Internet traffic. Jan 3, 2018 · Firewall log help needed. Applicable if action=log: nth (integer,integer; Default: ) Matches every nth packet. RouterOS is the operating system developed by MikroTik for networking tasks. 67-68 should be DHCP, and ether-1-wan is my Run a packet through the switch host table to make a forwarding decision. rx-packets-per-second: 19 0 0 0 0 0. Jan 15, 2009 · 10 system remote. *Biru = rule firewall yang kita buat tadi. Apr 6, 2018 · Input (traffic to router itself): Code: Select all. In this video, aft MUM - MikroTik User Meeting Mar 10, 2020 · Re: Firewall logs. input: in:ether-1-wan out: (unknown 0),scr-mac HERE IS A MAC ADDRESS,proto UDP,192. More Secure SSH access. Rules of thumb followed to set up the https://mynetworktraining. I need to be able to view the results of changes to firewall rules in the logged packets. The term "REST API" generally refers to an API accessed via HTTP protocol at a predefined set of resource-oriented URLs. log-prefix (string; Default: ) Adds specified text at the beginning of every log message. (amazon stick to amazon) this is logged by "drop forward state=invalid" rule. e. Pages; Blog; Page tree add action=redirect chain=dstnat comment=DNS dst-port=53 protocol=tcp to-ports=53. I don't receive any email if I leave the prefix value set. Sub-menu: /ip firewall mangle. queue trees, NAT, routing. XXX. Below you need to change x. by sjafka » Wed Aug 07, 2019 11:00 am. How can I see/ enable the firewall logs? For example, I want to see when "deny" rule is triggered, from where was triggered the You should take into account that a lot of connections will significantly increase memory and CPU usage. But working with all those files will be probably nightmare. Here is what my logging rules look like after creating the 4 new rules. RouterOS mampu melakukan pencatatan berbagai aktivitas sistem dan informasi status router. Here are few adjustment to make it more secure, make sure to apply the rules, when you understand what May 10, 2020 · Log yang berada dalam menu /log ini akan hilang begitu kita restart router karena log tersebut hanya disimpan pada RAM. Under the "Action" you can select the "log" check box. 117. The start command is used to start/reset sniffering, stop - stops sniffering. Salah satu fitur pada Mikrotik yang kelihatan nya simple dan mungkin juga terlupakan akan tetapi memiliki fungsi yang cukup penting adalah fitur LOGGING. If I then run a directory list no traffic is seen in the log as being received from the client. Secara default RouterOS akan melakukan pencatatan semua aktifitas dan Monitor traffic. Making the PCC (per connection-classifier) not a valid method, due to the, multiple routing tables used. My problem is I'm getting emails on every firewall info message. Mikrotik and firewall log problems. This information can be invaluable when trying to identify problems or optimize rules. Here is a quick script I threw together (I took some inpiration from other code on the forum): Code: Select all. /ip firewall filteradd action=accept chain=forward disabled=no dst-port=22 protocol=tcp dst-address=192. The following steps are recommendation how to protect your router. Any help will be appreciated Nov 14, 2022 · Fortunately, Mikrotik provides a built-in logging system that can be used to track all traffic passing through the firewall. x. Edit space details. Use logging for firewall /ip firewall filter set [find where src-address-list=ssh_blacklist] log=yes log-prefix=BLACKLISTED: Use logging for debug topics /system logging add topics=l2tp,debug action=memory. 125. . The filter correctly prefixes the log message. They identify a packet based on its mark and process it accordingly. 1 post • Page 1 of 1. Firewall – Log • Log merupakan fitur yang digunakan untuk menampilkan beberapa informasi / aktivitas yang ada pada router. The client does not respond. It isn't working and so I'm trying to log those rules (or use the "log" action) in order to debug. WebFig is a web-based RouterOS utility that allows you to monitor, configure and troubleshoot the router. Go to system/"logging" and define the action : memory=RAM or disk=flash memory). Scripting host provides a way to automate some router maintenance tasks by means of executing user-defined scripts bounded to some event occurrence. These information are only available through Connection Tracking, if you meant that, and since Mikrotik doesn't offer any option to export it fully or to send it to remote syslog host, so I guess, there is very little Apr 6, 2018 · The best additional protections for your new Mikrotik router are simply everything on "Manual:Securing Your Router" page before the "Firewall" section. add action=redirect chain=dstnat dst-port=53 protocol=udp to-ports=53. traffic classification by: A NAT router replaces the private source address of an IP packet with a new public IP address as it travels through the router. MikroTik. First we need to create our ADDRESS LIST with all IPs we will use most times. Lets look at basic firewall example to protect router itself and clients behind the router, for both IPv4 and IPv6 protocols. Dec 5, 2019 · You can do: Code: Select all. by WeWiNet » Tue Mar 10, 2020 2:51 pm. 173. 11. Apr 9, 2023 · Salah satu fitur pada MikroTik yang kelihatan nya simple dan mungkin juga terlupakan akan tetapi memiliki fungsi yang cukup penting adalah fitur LOGGING. These include things like disabling unused services, enabling HTTPS for device management, updating RouterOS, and reconfiguring the firewall rules. Many other facilities in RouterOS make use of these marks, e. In case any of the above-mentioned points are true, the packet gets forwarded to the switch-cpu port. Is it possible to open the log (in ssh or directly via a hard wired console) similar to when you issue the command "tail -f" on Unix? Connection tracking entries. Rout Feb 23, 2017 · Hello. MikroTik RouterOS has very powerful firewall implementation with features including: stateful packet inspection. You can also provide a specific prefix to better understand and differentiate log entries. 152:60806->54. /ip upnp set enabled=no. Langsung aja tanpa basa-basi 😉. Telnet the router: in CMD (or a terminal if it linux) write "telnet" and the Routerboard IP (in my case: telnet 10. 3. firewall,info. # Created by: gh05t 2023 v0. Sebagai contoh firewall logging, kita akan akan membuat satu rule yang akan mencatat semua aktifitas PING yang masuk ke router Mikrotik. I think #2 is not a problem, but I don't see a way to pass --log-level to the filter rules. However, it doesn't seem like I can get any of my NAT rules to log at all. add action=accept chain=input comment="defconf: accept ICMP after RAW" protocol=icmp. by mitzone » Mon Apr 07, 2014 1:01 pm. Another approach would be if there was content based filtering that could be applied in the Mar 9, 2011 · MikroTik. /ip firewall nat. txt, you could use it to keep history. Fitur ini biasanya banyak digunakan untuk melakukan filtering akses (Filter Rule), Forwarding (NAT), dan juga untuk menandai koneksi maupun paket dari trafik data yang melewati router ( Mangle ). But be aware the logging can be a huge amount of data, which will wear out the flash memory of the device. Then, use the Mikrotik Log Viewer tool to view the resulting Mar 3, 2015 · 2) Allow ICMP requests originating from any host on my LAN out to the internet and back. [admin@MikroTik] > import address. I want to just dropped package is placed into the log. We strongly suggest to keep default firewall, it can be patched by other rules that fullfils your setup requirements. Notice that ICMP is accepted here as well, it is used to accept ICMP packets that passed RAW rules. destination NAT or dstnat. 0. add chain=forward dst-address-list=restricted action=drop. peer-to-peer protocols filtering. Nov 21, 2017 · Learn MikroTik RouterOs Tutorial Series (english)At end of this tutorial you will be able to save your logs to your router's internal storage and external US Jul 27, 2009 · add chain=forward action=accept protocol=tcp dst-port=12345. [admin@MikroTik] > /interface monitor-traffic [find] name: ether1 ether2 ether3 ether4 ether5 sfp1. • Kita dapat membuat atau menambahkan catatan aktivitas apa saja sesuai yang diinginkan melalui firewall filter dengan menggunakan action log • Buatlah log untuk mencatat aktivitas ping yang masuk ke router. log-prefix="". Opening script file address. Any help will be appreciated Jan 2, 2019 · A firewall log view at the ftp server end see's the initial connection on port 21 and a response is sent back with the data channel port number. To get started, simply enable logging for each rule you want to monitor. 45. Full authentication and accounting of each connection may be done through a RADIUS client or locally. If I remove [admin@MikroTik] > ip service set [find name~"winbox"] address=192. The MikroTik HotSpot Gateway provides authentication for clients before access to public networks. Classify and mark connections and packets for QOS or Routing policy. Below we have the bogon list. 3. txt. rsc. Jan 3, 2007 · 1) Configure custom/"high priority" logging rules so that they would log at a level higher than "info". Now we can write a script and schedule it to run, let's say, every 30 seconds. 1” ip 192. For example, load saved configuration file. It is designed as an alternative of WinBox, both have similar layouts and both have access to almost any feature of RouterOS. Repeat these steps for each of the 4 default logging rules (critical, error, info, and warning). 0/24 7 XI api-ssl 8729 none Dec 24, 2016 · MikroTik uPnP MikroTik Firewall data usage Mikrotik DHCP pool information The rest works well for me. melakukan ping ke router kita. comment="drop ftp brute forcers". /ip socks set enabled=no. Firewall filter: Dec 2, 2023 · Hello, I am using a Mikrotik router with RouterOS v6. Summary. Jul 27, 2021 · I tried to block all connections from it with this rule: Code: Select all. In the next action, we enable logging on our MikroTik firewall. There are several ways to see what connections are making their way though the router. Jul 17, 2023 · Pengertian Firewall pada Mikrotik. I created the dsa certificate and I imported it in the mikrotik, but when using the private key to connect to the mikrotik, it always asks for a password. Jan 22, 2009 · I created a firewall rule to log with a prefix 'email', then attempted to have an email sent whenever this rule was triggered. This configuration allows only 10 FTP login incorrect answers per minute. I have a problem with a firewall logging, allowed traffic also inserted into the log. 9. An additional requirement is that the layer7 matcher must see both directions of traffic (incoming and outgoing). สำหรับบทความนี้จะพูดถึงการตั้งค่า Mikrotik ในส่วนของ Log Traffic โดยส่ง Log บนตัวอุปกรณ์ Mikrotik ไปยัง Log Server ( บทความนี้จะ Fitur Logging Pada Mikrotik. Tambahkan satu rule pada firewall-filter rule pada chain = input, sudah dijelaskan Oct 3, 2016 · As i understand you want to save connections log to disk file inside your mikrotik device. Jan 3, 2021 · Halo, disini Ghifari 👌. jump-target=syn-attack protocol=tcp tcp-flags=syn. Works only if use-ip-firewall is enabled in bridge Jan 5, 2022 · Logging is a great tool to gather comprehensive and much-needed information about the events and configuration conditions on your network. When the router sees a close of the TCP session (FIN/ACK FIN) it PPTP can be used with most firewalls and routers by enabling traffic destined for TCP port 1723 and protocol 47 traffic to be routed through the firewall or router. It is possible to enable more strict SSH settings (add aes-128-ctr and disallow hmac sha1 and groups with sha1) with this command: Protect the Device. The command above returns the default MikroTik configuration, that includes the default MikroTik firewall rules. g. Press OK to save the new rule. 8kbps 0bps 0bps 0bps 0bps 0bps. It looks like this: Nov 15, 2022 · To list the MikroTik firewall filter rules through the WinBox/WinFig interface, open the “ IP ” or “ IPv6 ” menu and click on the “ Firewall “: To get more detailed information about all the MikroTik firewall settings and to see the commands that have been used to configure the firewall, execute: [ admin @ MikroTik] > /ip firewall A properly configured firewall plays a key role in efficient and secure network infrastructure deployment. would work, but when I try and connect it never even hits the filter rule for some reason. 188:5228->64. For IPv4 everything works correctly but for IPv6 not Nov 28, 2020 · Kemudian. Manual:Securing Your Router. Nollitik. 3) Drop all ICMP requests not originating from my LAN (for example entering through the gateway) Firewall rules are as follows -. And if you wrap it in a script run from scheduler that would generate unique file names like connections-2019-12-11-18-23-00. IP / Firewall /New Firewall Rule (+) / záložka akce a tam se vybere add src to address list. Because I thinking of IP-filter basis, I'm sure that I made a mistake. The main goal here is to allow access to the router only from LAN and drop everything else. Penggunaan Custom Chain pada Firewall MikroTik. Jul 17, 2023 · So I resorted to mikrotik scripting. Kemudian, kita buka aplikasi Winbox, masuk menu “Log” dan akan terlihat siapa yang telah. x/x for your technical subnet. and. On the Rules tab, double-click each default rule. add action=jump chain=forward comment=”SYN Flood protect FORWARD” connection-state=new \. 254:67->255. Mar 3, 2015 · 2) Allow ICMP requests originating from any host on my LAN out to the internet and back. Community discussions. Firewall Example. The commands are used to control runtime operation of the packet sniffer. Well no traffic is received at the firewall I am viewing the log from. PPTP includes PPP authentication and accounting for each PPTP connection. to count the packets after NAT going to the internal host. Hi, i was attempt to type a script that show me and log the firewall address list (Static and Dynamic IP's ), but it does not run. /ip firewall filter add action=accept chain=input comment="defconf: accept ICMP after RAW" protocol=icmp add action=accept chain=input Feb 21, 2018 · is it possible to show running firewall log- similar to tail -f i. For instance, you can use the MikroTik RouterOS firewall to do the following: Filter packets using filter rules. May 5, 2011 · Everything is working but, I have a lot of logs from the firewall of the following: firewall,info input: in:ether1 out:(none), src-mac 00:02:5d:1c:64:4e, pro to TCP (ACK,FIN), 74. Block unwanted ports. 255. Through Firewall rules, you can control access to network resources, block unwanted traffic, limit network attacks, and implement other security policies. The packet exits through the switch-cpu port and it will be further processed by the RouterOS packet flow. and i see this every second multiple times. 3) Drop all ICMP requests not originating from my LAN (for example entering through the gateway) Firewall rules are as follows - 0 chain=input action=accept protocol=icmp src-address-list=LAN log=no log-prefix="" 1 ;;; Drop Invalid Input Connections chain Debugging tools. As Webfig is platform-independent, it can be used to configure a router directly from various devices without the Bruteforce login prevention. Mar 10, 2018 · Learn MikroTik RouterOs Tutorial Series (english)In this tutorial, I will show you how to configure your router to send emails for specific log event. 142. log - add a message to the system log containing following data: in-interface, out-interface, src-mac, protocol, src-ip:port->dst-ip:port and length of the packet. Sub-menu: /ip firewall connection. The traffic passing through any interface can be monitored using the monitor-traffic command. This procedure can be done in Action Tab of any firewall rule by selecting Log checkbox. I only want this forwarded to my remote log server. There are several types of DDoS attacks, for example, HTTP flood, SYN flood, DNS Running Packet Sniffer. add action=accept chain=input comment="defconf: accept established,related,untracked" connection-state=established,related,untracked. 9 and I am trying to set up some port forwarding rules via IP/Firewall/NAT. sg qa ao lf tj yt jk wx yn qx