Home
Search results “Crypto key generate rsa modulus 1024”
How to enable SSH on Cisco Router running IOS
 
05:49
How to enable SSH on Cisco Router running IOS commands used in this video commands used in this video: show crypto key mypubkey rsa show clock show ip ssh hostname macedonia_rt1 ip domain-name howtoios.blogspot.com crypto key generate rsa ip ssh version 2 sh ip ssh sh crypto key mypubkey rsa username howtoios secret howtoios enable secret howtoiossecret line vty 0 4 login local verify connectivity #ssh -l howtoios 192.168.1.1
Views: 19778 stefaniblogspot
SCP on cisco router
 
06:42
download pscp tool http://www.mediafire.com/download/ezdem65hccagg4k/pscp.rar commands: • R(config)# crypto key generate rsa modulus 1024 label pair1 • R(config)# aaa new-model • R(config)# aaa authentication login default local • R(config)# aaa authorization exec default local • R(config)# username admin privilege 15 password admin • R(config)# ip scp server enable pscp.exe -scp [email protected]:running-config c:\running-config.txt ========================================== http://www.facebook.com/groups/newccnasec
Views: 4193 Adel Shepl
Cisco ASA version 9 How to generate encryption RSA keys
 
02:40
Author, teacher, and talk show host Robert McMillen shows you how to use the Cisco ASA version 9 generate RSA keys command
Views: 2467 Robert McMillen
How to configure SSH on Cisco Router
 
04:36
I would like to explain as text on here for some important commands in SSH: #crypto key generate rsa: Enables the SSH server for local and remote authentication on the Router and generates an RSA key pair. Generating an RSA key pair for the Router automatically enables SSH. #ip ssh timeout 90 :Specify the time-out value in seconds #ip ssh authentication-retries 2: Specify the number of times that a client can re-authenticate to the server. # transport input ssh: Specifies that the Router prevent non-SSH Telnet connections.
Views: 1026 Sarith Eat
How to configure SSH on cisco router
 
02:40
Commands: R1(config)#int f0/0 R1(config-if)#ip add R1(config-if)#ip address 10.10.10.1 255.255.255.0 R1(config-if)#no sh R1(config)#ip domain-name cisco.com R1(config)#crypto key generate rsa How many bits in the modulus [512]: 1024 R1(config)#ip ssh v 2 R1(config)#username test password sshtest R1(config)#line vty 0 R1(config-line)#login local R1(config-line)#transport input ssh
✅ How to Configure SSH on Cisco Router in Cisco Packet Tracer | SYSNETTECH Solutions
 
08:40
How to Configure SSH on Cisco Router in Cisco Packet Tracer | SYSNETTECH Solutions ► Article ► https://goo.gl/Ghmd79 Read More ⬇️ ✅ S U B S C R I B E ► http://goo.gl/8d0iG9 This video shows you how to configure SSH on Cisco Router using the Cisco Packet Tracer network simulator program. To configure SSH on Cisco Packet Tracer: 1. If you have not installed Packet Tracer before, please refer to the following videos. Windows ➦ https://www.youtube.com/watch?v=pNLhTixgCXg Linux / Debian ➦ https://www.youtube.com/watch?v=aMnumAyFxCQ Linux / Linux Mint ➦ https://www.youtube.com/watch?v=VRmN0pDgLgo Linux / Ubuntu ➦ https://www.youtube.com/watch?v=rwGuAbiGPdc MacOS High Sierra ➦ https://www.youtube.com/watch?v=cXaqjFukSAI 2. After installing the Cisco Packet Tracer, add two Cisco routers, one Cisco Switch, and a PC in the workspace. 3. Before configuring SSH on Cisco Router, specify an IP block and assign IP addresses to the Cisco Router's interfaces and to the PC. 4. To configure SSH in Cisco Packet Tracer, open the Cisco Router CLI command prompt and run the following commands. Router(config)# hostname SSHRouter SSHRouter(config)# interface gigabitethernet 0/0 SSHRouter(config-if)# ip address 192.168.1.1 255.255.255.0 SSHRouter(config-if)# no shutdown %LINK-5-CHANGED: Interface GigabitEthernet0/0, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up SSHRouter(config-if)# exit SSHRouter(config)# ip domain name SSHRouter.com SSHRouter(config)# crypto key generate rsa <span style="color: #00ff00;">The name for the keys will be: SSHRouter.SSHRoutersolutions.com Choose the size of the key modulus in the range of 360 to 2048 for your General Purpose Keys. Choosing a key modulus greater than 512 may take a few minutes. How many bits in the modulus [512]: 1024 % Generating 1024 bit RSA keys, keys will be non-exportable...[OK] SSHRouter(config)# ip ssh version 2 *Mar 1 0:6:12.698: %SSH-5-ENABLED: SSH 1.99 has been enabled</span> SSHRouter(config)# ip ssh time SSHRouter(config)# ip ssh time-out 10 SSHRouter(config)# ip ssh authentication-retries 3 SSHRouter(config)# line vty 0 4 SSHRouter(config-line)# login local SSHRouter(config-line)# privilege level 15 SSHRouter(config-line)# transport input ssh SSHRouter(config-line)# exit SSHRouter(config)# username cisco privilege 15 password cisco123 SSHRouter(config)# end SSHRouter# wr 5. After configuring SSH on Cisco Router, run the following command on PC1's Command Prompt to make an SSH connection over PC1. ➦ ssh -l cisco 192.168.1.1 6. When you have made the SSH connection from the PC to Cisco Router, type the password for the username you created and press Enter. 7. You can see that an SSH connection was established from PC1 to Cisco Router. 8. To make an SSH connection from the Cisco Router to the Cisco Router, run the following command in Privileged Mode. ➦ ssh -l cisco 192.168.1.1 9. After enabling SSH on Cisco Packet Tracer, you can use the following commands to verify SSH. ➦ show ssh ➦ show ip ssh 10. Watch the entire video to configure SSH on Cisco Router using Cisco Packet Tracer. 11. Don't forget to subscribe to our YouTube channel! ➦ http://goo.gl/8d0iG9 ────────BEST PRODUCT FOR CISCO TRAINING───────── ✅ Buy ► http://bit.ly/CiscoNetworkingEssentials ───────────────RELATED VIDEOS─────────────── ➊ How to Configure Static NAT in Cisco Packet Tracer ➦ https://www.youtube.com/watch?v=ohvGuTPQ1SM ➋ How to Configure EIGRP in Cisco Packet Tracer ➦ https://www.youtube.com/watch?v=vhVmum82qjE ➌ How to Configure OSPF in Cisco Packet Tracer ➦ https://www.youtube.com/watch?v=xF4xd4cEDXg ➍ How to Configure NAT Overload in Cisco Packet Tracer ➦ https://www.youtube.com/watch?v=uF-4cxIJQ_E ➎ How to Configure Telnet on Cisco Router in Cisco Packet Tracer ➦ https://www.youtube.com/watch?v=meBU5RQGY9M ───────────────FOLLOW US─────────────────── ✔ Facebook ➦ https://www.facebook.com/SysnettechSolutions/ ✔ Google+ ➦ https://plus.google.com/u/0/+Tolgabagci/ ✔ Twitter ➦ https://twitter.com/SysnettechS/ ✔ Pinterest ➦ https://www.pinterest.com/SysnettechS/ ✔ Instagram ➦ https://www.instagram.com/sysnettech_solutions/ ✔ LinkedIn ➦ https://tr.linkedin.com/in/tolqabaqci/ ✔ StumbleUpon ➦ http://www.stumbleupon.com/stumbler/Sysnettech/ ███████████████████████████████████████████ ⚠️ ⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️ WE DON'T ALLOW VIDEOS ON OUR YOUTUBE CHANNEL TO BE SHARED USING THE API !!! Even if a video's sharing feature on our YouTube channel is enabled, it does not mean that you will share this video content without permission. If you do not take this warning into account, we have to send SPAM notification to Google. We will have to use force on the person or website owner who is continuing to spam. If you embed the video in an article on your website, we may allow it. Thank you for your understanding. ███████████████████████████████████████████
Views: 1775 SYSNETTECH Solutions
Factoring Algorithms
 
01:00:17
Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
Views: 8320 nptelhrd
2 2 1 4 Packet Tracer Configuring SSH
 
07:50
CCNA Routing and Switching - Routing and Switching Essentials Packet Tracer - 2.2.1.4 Packet Tracer - Configuring SSH These are the commands I used. Cisco Packet Tracer 2.2.1.4 Packet Tracer - Configuring SSH PC1 > Desktop > Command Propt PC>telnet 10.10.10.2 pass : cisco S1>en pass : cisco S1#copy run start S1#sh run S1#conf t S1(config)#service password-encryption S1(config)#end S1#conf t S1(config)#ip domain-name netacad.pka S1(config)#crypto key generate rsa How many bits in the modulus [512] : 1024 S1(config)#username administrator secret cisco S1(config)#line vty 0 15 S1(config-line)#no password S1(config-line)#no login S1(config-line)#login local S1(config-line)#transport input ssh S1(config-line)#exit
Views: 23 Alex Tenorio
✅ How to Configure SSH on Cisco Router in GNS3 | What is SSH | SYSNETTECH Solutions
 
09:27
How to Configure SSH on Cisco Router in GNS3 | What is SSH | SYSNETTECH Solutions ► Article ► https://goo.gl/dLyJp2 Read More ⬇️ ✅ S U B S C R I B E ► http://goo.gl/8d0iG9 This video shows you how to configure SSH (Secure Shell) on Cisco Router using the GNS3 network simulator program. To configure SSH on GNS3: 1. If you have not installed GNS3 on Windows, Linux or MacOS before, please refer to the following videos. Windows ➦ https://www.youtube.com/watch?v=uhWt6TPNp-A Linux / Debian ➦ https://www.youtube.com/watch?v=_HsKS4iwr3M Linux / Linux Mint ➦ https://www.youtube.com/watch?v=XU6gf_Reiuk Linux / Ubuntu ➦ https://www.youtube.com/watch?v=8atzceBgN-c MacOS ➦ https://www.youtube.com/watch?v=MWStTRpwqBY 2. Once you have done the GNS3 setup, add the Cisco Router to GNS3. If you do not know how to do this, please refer to the following article. Article ➦ https://www.sysnettechsolutions.com/en/gns3/adding-cisco-ios-to-gns3/ 3. Add one Cisco Router, Cisco Switch, and Host to the GNS3 workspace to configure SSH on the Cisco Router. 4. Configure the Host settings to add a VMware virtual machine on GNS3. If you do not know how to use a virtual machine in GNS3, please refer to the following article. Article ➦ https://www.sysnettechsolutions.com/en/gns3/integrate-vmware-with-gns3/ 5. Once you have completed the necessary preparations for SSH configuration in GNS3, cable all devices in the workspace. 6. Specify a virtual machine on VMware for the host. Specify a VMnet in the VMware Virtual Network Editor program. 7. Assign an IP address for the VMnet that you created in the network settings of your physical computer. 8. To configure SSH on Cisco Router, open the CLI command prompt and run the following commands. R1# conf t R1(config)# interface fastethernet0/0 R1(config-if)# ip address 192.168.8.1 255.255.255.0 R1(config-if)# no shutdown R1(config-if)# exit R1(config)#ip domain-name sysnettechsolutions.com R1(config)#crypto key generate rsa general-keys modulus 1024 The name for the keys will be: R1.sysnettechsolutions.com % The key modulus size is 1024 bits % Generating 1024 bit RSA keys, keys will be non-exportable...[OK] R1(config)# ip ssh time-out 15 R1(config)# ip ssh authentication-retries 2 R1(config)# ip ssh version 2 R1(config)# username cisco privilege 15 password cisco123 R1(config)# line vty 0 4 R1(config-line)# login local R1(config-line)# privilege level 15 R1(config-line)# transport input ssh R1(config-line)# exit R1(config)# end R1# wr 9. After you enable SSH on Cisco Router, make an SSH connection to Cisco Router using Putty on the virtual machine. Use the following command to connect from the PC to the Cisco Router via SSH. ➦ ssh -I cisco 192.168.8.1 10. Likewise, you can use the following command in Privileged Mode to connect from the Cisco Router to the Cisco Router via SSH. ➦ ssh -I cisco 192.168.8.1 11. Watch the entire video to configure SSH on Cisco Router using GNS3. 12. Don't forget to subscribe to our YouTube channel. ➦ http://goo.gl/8d0iG9 What is SSH? Secure Shell (SSH) is a protocol which provides a secure remote access connection to network devices. Communication between the client and server is encrypted in both SSH version 1 and SSH version 2. Implement SSH version 2 when possible because it uses a more enhanced security encryption algorithm. ────────BEST PRODUCT FOR CISCO TRAINING────────── ✅ Buy ► http://bit.ly/CiscoNetworkingEssentials ───────────────RELATED VIDEOS─────────────── ➊ How to Configure Telnet on GNS3 ➦ https://www.youtube.com/watch?v=eiI_2srAyLM ➋ How to Configure Static NAT on GNS3 ➦ https://www.youtube.com/watch?v=2rnXtbEmwes ➌ How to Configure Dynamic NAT on GNS3 ➦ https://www.youtube.com/watch?v=CzxXWzY0c1U ➍ How to Configure EIGRP in GNS3 ➦ https://www.youtube.com/watch?v=rJC3UERvdnQ ➎ How to Configure OSPF in GNS3 ➦ https://www.youtube.com/watch?v=gFMvgpDSzlI ───────────────FOLLOW US─────────────────── ✔ Facebook ➦ https://www.facebook.com/SysnettechSolutions/ ✔ Google+ ➦ https://plus.google.com/u/0/+Tolgabagci/ ✔ Twitter ➦ https://twitter.com/SysnettechS/ ✔ Pinterest ➦ https://www.pinterest.com/SysnettechS/ ✔ Instagram ➦ https://www.instagram.com/sysnettech_solutions/ ✔ LinkedIn ➦ https://tr.linkedin.com/in/tolqabaqci/ ✔ StumbleUpon ➦ http://www.stumbleupon.com/stumbler/Sysnettech/ ███████████████████████████████████████████ ⚠️ ⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️ WE DON'T ALLOW VIDEOS ON OUR YOUTUBE CHANNEL TO BE SHARED USING THE API !!! Even if a video's sharing feature on our YouTube channel is enabled, it does not mean that you will share this video content without permission. If you do not take this warning into account, we have to send SPAM notification to Google. We will have to use force on the person or website owner who is continuing to spam. If you embed the video in an article on your website, we may allow it. Thank you for your understanding. ███████████████████████████████████████████
Key size
 
15:02
In cryptography, key size or key length is the size measured in bits of the key used in a cryptographic algorithm. An algorithm's key length is distinct from its cryptographic security, which is a logarithmic measure of the fastest known computational attack on the algorithm, also measured in bits. The security of an algorithm cannot exceed its key length, but it can be smaller. For example, Triple DES has a key size of 168 bits but provides at most 112 bits of security, since an attack of complexity 2112 is known. This property of Triple DES is not a weakness provided 112 bits of security is sufficient for an application. Most symmetric-key algorithms in common use are designed to have security equal to their key length. No asymmetric-key algorithms with this property are known; elliptic curve cryptography comes the closest with an effective security of roughly half its key length. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 1088 Audiopedia
Recover RSA private key from public keys - rhme2 Key Server (crypto 200)
 
12:42
Using the greatest common divisor (GCD) to factorize the public modulo into the secret primes, so we can forge a RSA signature. Source for the rhme2 challenges: https://github.com/Riscure/Rhme-2016 -------------------------------------- Twitter: https://twitter.com/LiveOverflow Website: http://liveoverflow.com/ Subreddit: https://www.reddit.com/r/LiveOverflow/
Views: 31959 LiveOverflow
Cisco site to site VPN with digital certificates authentication (IOS based Certificate Authority).
 
08:22
This is a basic configuration of Cisco IOS based CA for handing out self signed certificates to VPN peers. Please note that prior to setting up CA server, all the routers need to be synched up with a NTP server. otherwise certificates get a wrong timestamp and could cause the VPN peering to fail. Hope this has been helpful and thank you.
Views: 18248 hesam shahbazian
Encryption and HUGE numbers - Numberphile
 
09:22
Banks, Facebook, Twitter and Google use epic numbers - based on prime factors - to keep our Internet secrets. This is RSA public-key encryption. More links & stuff in full description below ↓↓↓ Gold Vault: https://youtu.be/CTtf5s2HFkA This video features Dr James Grime (http://singingbanana.com/). Message from James: "Thanks to Dr Chris Hughes of the University of York who showed me how to find the RSA public key from my browser, and showed me how awesome they look when you print them out." Regarding the keys used for encryption: x, y prime Encode key E shares no factors with (x-1)(y-1) Decode key is D with E*D - 1 a multiple of (x-1)(y-1) Thanks to Drew Mokris for the animation: http://www.spinnerdisc.com/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Haran Patreon: http://www.patreon.com/numberphile Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/ Brady's latest videos across all channels: http://www.bradyharanblog.com/ Sign up for (occasional) emails: http://eepurl.com/YdjL9 Numberphile T-Shirts: https://teespring.com/stores/numberphile Other merchandise: https://store.dftba.com/collections/numberphile
Views: 994991 Numberphile
Public Key Cryptography: RSA Encryption Algorithm
 
16:31
RSA Public Key Encryption Algorithm (cryptography). How & why it works. Introduces Euler's Theorem, Euler's Phi function, prime factorization, modular exponentiation & time complexity. Link to factoring graph: http://www.khanacademy.org/labs/explorations/time-complexity
Views: 508219 Art of the Problem
correction d'examen de Fin de Formation Pratique 2015  V1 TRI + conseils
 
25:21
Fichiers |Services d'administration sous Linux + Commandes Cisco https://mega.nz/#!WxdglZ5L!dg9XEgOPeGMoTVcqFosNca1mt9Dzqte3fwKHEfONzV4 http://www.reseau-informatiques.com/2016/09/examen-de-fin-de-formation-theorique-et-pratique-juin-2015.html Correction EFF Pratique V 1- 1 2015 http://www.reseau-informatiques.com/2016/09/correction-dexamen-de-fin-de-formation.html Télécharger Les EFF 2006-2015 3- Configuration des ports de commutateur de siège F0/1-4 en mode agrégé avec vlan 111 comme vlan natif : Sur tout les commutateurs : Switch(config)#interface range fastEthernet 0/1-4 Switch(config-if-range)#switchport mode trunk Switch(config-if-range)#switchport trunk native vlan 111 Switch(config-if-range)#exit 4- Configuration de Sw1 comme serveur vtp : Switch(config)#vtp mode server Switch(config)#vtp domain domvtpj1-v1 Switch(config)#vtp password passevtpj1-v1 5- Création des vlan sur sw1 : Sw1(config)#vlan 15 Sw1(config-vlan)#name ingenierie Sw1(config-vlan)#vlan 25 Sw1(config-vlan)#name direction Sw1(config-vlan)#exit Sw1(config)#vlan 35 Sw1(config-vlan)#name marketing Sw1(config-vlan)#exit Sw1(config)#vlan 45 Sw1(config-vlan)#name comptabilite Sw1(config-vlan)#exit Sw1(config)#vlan 55 Sw1(config-vlan)#name serveurs Sw1(config-vlan)#exit Sw1(config)#vlan 111 Sw1(config-vlan)#name gestion Sw1(config-vlan)#exit 6- Configuration de Sw2 et Sw3 comme client vtp : Sur les deux commutateurs : Switch(config)#vtp mode client Switch(config)#vtp domain domvtpj1-v2 Switch(config)#vtp password passevtpj1-v1 7- Configuration Sw-Serv Comme serveur vtp : Switch(config)#vtp mode server Switch(config)#vtp domain domvtpj1-v1 Switch(config)#vtp password passevtpj1-v1 8- Affection des ports sur les commutateurs Sw2 et Sw3 : Sur les deux commutateurs : Switch(config)#interface range fastEthernet 0/5-14 Switch(config-if-range)#switchport access vlan 15 Switch(config-if-range)#exit Switch(config)#interface range fastEthernet 0/20-22 Switch(config-if-range)#switchport access vlan 25 Switch(config-if-range)#exit Switch(config)#interface range fastEthernet 0/15-19 Switch(config-if-range)#switchport access vlan 35 Switch(config-if-range)#exit Switch(config)#interface range fastEthernet 0/23-24 Switch(config-if-range)#switchport access vlan 45 Switch(config-if-range)#exit 9- Affectation des ports sur Commutateurs Sw-Serv Pour vlan serveurs : Switch(config)#interface range fastEthernet 0/5-9 Switch(config-if-range)#switchport access vlan 55 Switch(config-if-range)#exit Switch(config)#interface range fastEthernet 0/10-24 Switch(config-if-range)#shutdown 10- Configuration de SSH sur Sw-Serv : Switch(config)#hostname Sw-Serv Sw-Serv(config)#ip domain-name tarfih.local Sw-Serv(config)#ip ssh version 2 Sw-Serv(config)#crypto key generate rsa How many bits in the modulus [512]: 1024 Sw-Serv(config)#username effuser11 password effpasse11 Sw-Serv(config)#line vty 0 15 Sw-Serv(config-line)#transport input ssh Sw-Serv(config-line)#login local Sw-Serv(config-line)#exit Routage 11- Configuration des noms sur Tout les Routeurs : Sur Routeur FAI : Sur Routeur Tanger : Router(config)#hostname FAI Router(config)#hostname Tanger Sur Routeur Marrakech : Sur Routeur Casa : Router(config)#hostname Marrakech Router(config)#hostname Casa 12- Configuration de routeur Tanger : Tanger(config)#line console 0 Tanger(config-line)#password c0ns0le Tanger(config-line)#login Tanger(config-line)#exit Tanger(config)#enable secret $ecret Tanger(config)#no ip domain-lookup Tanger(config)#banner motd /acces autorise uniquement/ 13- Configuration de routage inter vlan Sur le routeur Tanger : Tanger(config)#interface gigabitEthernet 0/0.15 Tanger(config-subif)#encapsulation dot1Q 15 Tanger(config)#interface gigabitEthernet 0/0.25 Tanger(config-subif)#encapsulation dot1Q 25 Tanger(config-subif)#ip address 172.30.0.129 255.255.255.240 Tanger(config)#interface gigabitEthernet 0/0.35 Tanger(config-subif)#encapsulation dot1Q 35 Tanger(config-subif)#ip address 172.30.0.97 255.255.255.224 Tanger(config-subif)#exit Tanger(config)#interface gigabitEthernet 0/0.45 Tanger(config-subif)#encapsulation dot1Q 45 ...
Views: 18672 abderrahmane khair
C# Keywords RSA Cryptography (Public/Private Key Encryption)
 
14:14
RSA being a public key crypto-system has two keys, the Public key and the Private key. The Encryption is done using one and the decryption is done using the other. Normally, the encryption is done using the Public key and the decryption is done using the Private key. The RSA modulus (explained below) length is called the key length of the cipher. The currently largest factored prime number had 768 bit. As the security of RSA depends on the factoring problem, using a modulus of 1024 bits is a bare minimum. It is recommended to use at least 2048 bits for good security. 4096 bit is pretty much unbreakable, anything beyond 4096 bits is over the top and would also be painfully slow.
02 Cisco ASA Telnet & SSH [Arabic]
 
07:45
• Configure Telnet Access. --------------------------------------------- • To enable the Telnet service. • Ciscoasa(config)# passwd the-password • To identify which inside host can telnet to the ASA. • Ciscoasa(config)# telnet host-ip|network-id subnet-mask interface-name • Add Telnet access to the console and set the idle timeout. • ciscoasa(config)# telnet timeout n-min • Display active Telnet administration sessions. • ciscoasa# who • To configure remote access management by ASDM. • ASDM, Configuration, Device Management, Management Access, ASDM/HTTPS/Telnet/SSH. • Terminate a Telnet session. • ciscoasa# kill session_id • Deploying SSH. --------------------------- • Cretae a user account. • Ciscoasa(config)# username name password the-password • To configures SSH to refer to the local database for authentication. • Ciscoasa(config)# aaa authentication ssh console LOCAL [LOCAL keyword is case sensitive]. • To generate the RSA key required for SSH encryption. • Ciscoasa(config)# crypto key generate rsa modulus 1024 • ASDM, Configuration, Device Management, Certificate Management, Identity Certificates, Add. • To identify which host or network can SSH to the ASA and from which interface. • Ciscoasa(config)# ssh host-ip|network-id subnet-mask interface-name • ASDM, Configuration, Device Management, Management Access, ASDM/HTTPS/Telnet/SSH, Add • Restrict the version of SSH accepted by the ASA. • ciscoasa(config)# ssh version {1 | 2} • To set ssh idle exec timeout (default is 5 min). • Ciscoasa(config)# ssh timeout n-minutes • To verify the SSH configuration. • Ciscoasa(config)# show ssh • Display information about the active SSH session(s). • ciscoasa# show ssh sessions • Disconnect an active SSH session. • ciscoasa# ssh disconnect session_id • Display debug information and error messages associated with SSH. • ciscoasa(config)# debug ssh http://www.facebook.com/groups/newccnasec
Views: 701 Adel Shepl
How to set up Secure Shell (SSH) in Cisco Packet Tracer
 
02:38
How to set up Secure Shell (SSH) in Cisco Packet Tracer What is Secure Shell (SSH) you might ask!? SSH protocol uses public-key cryptography to authenticate the remote computer and allow it to authenticate the user, if necessary. There are several ways to use SSH; one is to use automatically generated public-private key pairs to simply encrypt a network connection, and then use password authentication to log on. Out side of PT, on a real computer you can use the program called putty to SSH in to your interfaces.
Views: 10977 Jordan Taylor
Packet Tracer 2.2.1.4 - Configuring SSH Instruction - CCNA 2 - Chapter 2
 
11:14
Packet Tracer - Configuring SSH Objectives Part 1: Secure Passwords Part 2: Encrypt Communications Part 3: Verify SSH Implementation Background SSH should replace Telnet for management connections. Telnet uses insecure plain text communications. SSH provides security for remote connections by providing strong encryption of all transmitted data between devices. In this activity, you will secure a remote switch with password encryption and SSH. Part 1: Secure Passwords a. Using the command prompt on PC1, Telnet to S1. The user EXEC and privileged EXEC password is cisco. b. Save the current configuration so that any mistakes you might make can be reversed by toggling the power for S1. c. Show the current configuration and note that the passwords are in plain text. Enter the command that encrypts plain text passwords: ____________________________________________________________________________________ d. Verify that the passwords are encrypted. Part 2: Encrypt Communications Step 1: Set the IP domain name and generate secure keys. It is generally not safe to use Telnet, because data is transferred in plain text. Therefore, use SSH whenever it is available. a. Configure the domain name to be netacad.pka. b. Secure keys are needed to encrypt the data. Generate the RSA keys using a 1024 key length. Step 2: Create an SSH user and reconfigure the VTY lines for SSH-only access. a. Create an administrator user with cisco as the password. b. Configure the VTY lines to check the local username database for login credentials and to only allow SSH for remote access. Remove the existing vty line password. Part 3: Verify SSH Implementation a. Exit the Telnet session and attempt to log back in using Telnet. The attempt should fail. b. Attempt to log in using SSH. Type ssh and press Enter without any parameters to reveal the command usage instructions. Hint: The -l option is the letter “L”, not the number 1. c. Upon successful login, enter privileged EXEC mode and save the configuration. If you were unable to successfully access S1, toggle the power and begin again at Part 1.
Views: 11596 Astrit Krasniqi
RSA (cryptosystem)
 
30:46
RSA is one of the first practicable public-key cryptosystems and is widely used for secure data transmission. In such a cryptosystem, the encryption key is public and differs from the decryption key which is kept secret. In RSA, this asymmetry is based on the practical difficulty of factoring the product of two large prime numbers, the factoring problem. RSA stands for Ron Rivest, Adi Shamir and Leonard Adleman, who first publicly described the algorithm in 1977. Clifford Cocks, an English mathematician, had developed an equivalent system in 1973, but it wasn't declassified until 1997. A user of RSA creates and then publishes a public key based on the two large prime numbers, along with an auxiliary value. The prime numbers must be kept secret. Anyone can use the public key to encrypt a message, but with currently published methods, if the public key is large enough, only someone with knowledge of the prime factors can feasibly decode the message. Breaking RSA encryption is known as the RSA problem. It is an open question whether it is as hard as the factoring problem. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 456 Audiopedia
Public key cryptography - Diffie-Hellman Key Exchange (full version)
 
08:38
The history behind public key cryptography & the Diffie-Hellman key exchange algorithm. We also have a video on RSA here: https://www.youtube.com/watch?v=wXB-V_Keiu8
Views: 594019 Art of the Problem
RSA Algorithm concept and Example
 
05:03
Enroll to Full Course: https://goo.gl/liK0Oq Networks#4: The video explains the RSA Algorithm (public key encryption) Concept and Example along with the steps to generate the public and private keys. The video also provides a simple example on how to calculate the keys and how to encrypt and decrypt the messages. For more, visit http://www.EngineeringMentor.com. FaceBook: https://www.facebook.com/EngineeringMentor. Twitter: https://www.twitter.com/Engi_Mentor
Views: 156719 Skill Gurukul
Configuración básica SSH (Packet Tracer 5.3
 
06:30
Configuraremos SSH versión 2 desde Packet Pracer, información adicional sobre criptografía en http://www.intypedia.com/
Views: 16796 videosCCNA