Archives : Tech Blog

  • Cisco Notes Basic

    ———SHOW commandsshow ip dhcp bindingshow mac-addressshow ip routeshow ip protocols – what routing protocols runningshow ip nat translations – NAt mappingsshow sessions – open telnet sessionsshow users – connected to your routershow lineshow cdp neighbourshow cdp neighbour detailshow cdp entry or *show access-listshow ip eigrp neighboursshow frame-relay lmishow frame-relay mapshow frame-relay pvcshow ip ospf neighbourshow […]

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  • Cisco Web Interface HTTPS / RIP / SSH

    ———Configure SDMconf tip domain-namecrypto key generate rsa general-keysip http serverip http secure-serverusername privilege 15 passwordip http auth localline vty 0 4login local ——–RIP router protocolrouter ripversion 2network (Which int to send broadcast, which ones to peer)no auto-summary – dont sumarize a classful subnet mask ———-typos resolve to a dns server, gets anoyyingconf tno ip domain-lookup […]

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  • AWS – Notes

    —VPC Can peer 1 VPC with another using private IP addresses. Must peer directly with VPC no hopping Can have 5 VPC’s per region Network Access control lists are stateless unlike security groups which are stateful. You can only assign 1 internet gateway to a VPC Security groups do not span VPC’s //Route tables -> […]

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  • AWS

    ————————-Athena code Select * from cloudtrail_logs where eventname=’ListSubscriptionsByTopic’; —————Advanced Routing Network ACL’s on a Subnet are stateless Security groups can be used as a source Security groups are stateful on EC2’s ——-NAT Gateways vs Internet Gateways A NAT Gateway provides internet for multiple Private IP’s on EC2’s The route table needs an entry for 0.0.0.0 -> […]

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  • Asterisk PABX

    //Debuging *CLI> sip show peers *CLI> sip show users sip show subscriptions Install TFTP Server Convert 7941/7960G to SIP + Register extension note: SIP phones expect Option 66 for the TFTP server. The 7960 phone also requires option 150 Method 1) 1.) Install the tftp server role to the Astrix (Instructions above) 2. Download the COP file from cisco (7960)   […]

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  • ASA Firepower

    —Packet Tracer packet-tracer input inside tcp 10.200.4.106 64000 172.16.90.205 3389 —default login admin Admin123 –Set management IP on FMC show -> Configure -> Expert sudo /usr/local/sf/bin/configure-network —Restart GUI of FMC I had this issue, I fixed it by restarting the console from expert mode. sudo /etc/rc.d/init.d/console restart

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  • A10- Load Balancers

    //Default username and password —OVA admin a10 –ISO install password //Management IP enable <password blank> config //Get UID show license uid //Activation ip dns primary 8.8.8.8 glm use-mgmt-port glm token <Token ID> glm enable requests write memory //Flexpool If you have say 3x devices provisioned for 50Gbps Flexpool can dynamically take throughput from one devices […]

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  • Windows Server – Robocopy

    —–Robocopy //Only copy the differences robocopy C:\Copy1\ C:\Users\Administrator\Desktop\Copy2 /e //copy only the differences and list the modifications robocopy C:\Copy1\ C:\Users\Administrator\Desktop\Copy2 /e /l //copy files and keep owner and ACL’s robocopy C:\Copy1\ C:\Users\Administrator\Desktop\Copy2 /e /copy:DATSO //Copy files with the ability to resume if the copy gets stuck robocopy C:\Copy1\ C:\Users\Administrator\Desktop\Copy2 /e /z //Log Robocopy robocopy C:\Copy1\ […]

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  • Windows Server – NLB Network load balancer

    — Feature that installs on each VM from server manager. When connecting to a host expect it to hang for 5 minutes. //Configuration 1. Install the NLB feature on each IIS Server x2 2. On any one of NLB servers create a cluster Network load balancer -> new cluster 3. Specify a VIP (Cluster IP) […]

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  • Windows Server – Global Catalogue

    Contains every AD object in the whole AD forest //Configuration 1. Active directory sites and services 2. NTDS settings-> Properties -> General -> Global Catalogue

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