TCP Retransmissions b/c of Checksum Incorrect
We have a problem where some users will complain of slow application response time (on the LAN) from our ERP server, but others will be fine. After many hours of troublshooting I’ve discovered the following: - Packet Sniff’s of affected users shows TCP Retransmissions because the Checksum is Incorrect from the server. - Replacing the [...]
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| February 4, 2009 3:55 PM
Bandwidth, Cabling, Cisco, Ethernet, Fault isolation, Hubs, IPv4, NetBIOS, Network protocols, Network testing, Networking, Protocol analysis, Routers, Switches, TCP, TCP/IP
We have a problem where some users will complain of slow application response time (on the LAN) from our ERP server, but others will be fine. After many hours of troublshooting I’ve discovered the following: - Packet Sniff’s of affected users shows TCP Retransmissions because the Checksum is Incorrect from the server. - Replacing the [...]
Dell Optiplex GX520 hibernation/sleep mode issues
Hello, We have several Dell Optiplex GX520′s on the network running Windows XP pro. They randomly fall into sleep mode. Moving the mouse will not wake them – you have to push the power button to get them out of sleep mode. Also we are not able to remotely wake them to do patch updates [...]
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| November 22, 2009 3:45 PM
Availability, Bandwidth, Cabling, DataCenter, Dell, Desktops, DHCP, DNS, Ethernet, Fault isolation, FDDI, Frame Relay, H.323, Hardware, Hubs, Interoperability, IPv4, LDAP, Management, Microprocessors, Microsoft Office, Microsoft Windows, MPLS, NetBIOS, Network applications management, Network management software, Network monitoring, Network protocols, Network testing, Networking, Networking services, NIC, OS, Patch management, Protocol analysis, Remote management, Routers, Security, Servers, SIP, Software, SQL Server, Switches, TCP, Tech support
Hello, We have several Dell Optiplex GX520′s on the network running Windows XP pro. They randomly fall into sleep mode. Moving the mouse will not wake them – you have to push the power button to get them out of sleep mode. Also we are not able to remotely wake them to do patch updates [...]
Routing Between Subnets and between networks
1.I have two separe networks 192.168.0.0 and 192.168.1.0 ,they r physicall connected. What should i configure and where to configure so that host of each network can connect to other host in other network. 2.I have two separe Subnets(after subnetting a class B network),they r physicall connected. What should i configure and where to configure [...]
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| January 10, 2007 4:12 AM
3Com, Active Directory, Availability, Bandwidth, Benchmarking, Bind, Cabling, Cisco, DHCP, DNS, Ethernet, Fault isolation, FDDI, Frame Relay, General Directories, H.323, Hardware, Hewlett-Packard, Hubs, IPv4, IPv6, LDAP, Lotus Domino, Lucent, Microsoft Windows, MPLS, NetBIOS, Network applications management, Network management software, Network monitoring, Network protocols, Network testing, Networking, Networking services, NFS, Nortel, Performance management, Ping, Protocol analysis, Remote management, Routers, SIP, Switches, TCP, WINS
1.I have two separe networks 192.168.0.0 and 192.168.1.0 ,they r physicall connected. What should i configure and where to configure so that host of each network can connect to other host in other network. 2.I have two separe Subnets(after subnetting a class B network),they r physicall connected. What should i configure and where to configure [...]
odd NIC problem
Howdy all… I have a win2k3 member server with 2 onboard Intel PRO lan connections. One is 100mb the other 1000mb. On the 100mb connection, I can set either a DHCP or Static TCP address and it works fine. On the 1000mb connection, it works fine on DHCP, but absolutely refuses to connect with a [...]
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| October 28, 2006 5:47 PM
Active Directory, Availability, Bind, Cabling, DataCenter, Desktops, DHCP, DNS, Ethernet, Fault isolation, Hardware, Hewlett-Packard Application Server, Hubs, Interoperability, IPv4, IPv6, LDAP, Management, Microsoft Internet Information Server, Microsoft Windows, NetBIOS, Network management software, Network protocols, Network testing, Networking, Networking services, NIC, OS, Protocol analysis, Routers, Security, Servers, Software, SQL Server, Switches, TCP, Tech support, WINS
Howdy all… I have a win2k3 member server with 2 onboard Intel PRO lan connections. One is 100mb the other 1000mb. On the 100mb connection, I can set either a DHCP or Static TCP address and it works fine. On the 1000mb connection, it works fine on DHCP, but absolutely refuses to connect with a [...]
Cisco Load sharing with port forwarding different ISP’s
I have a 1811 series router now its set with dual internet connections two different ISP’s I have 2 default routes basically It should load balance between two now my concern is I need a port forwarding as we use privite space addressing. I am including current config addresses have been changed to examples. ip [...]
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| October 16, 2006 1:42 PM
Availability, Bandwidth, Cabling, Cisco, DHCP, DNS, Fault isolation, Hardware, Hubs, Networking, Networking services, Performance management, Routers, Switches
I have a 1811 series router now its set with dual internet connections two different ISP’s I have 2 default routes basically It should load balance between two now my concern is I need a port forwarding as we use privite space addressing. I am including current config addresses have been changed to examples. ip [...]
Monitoring the Network
Hi, I have multiple remote sites. I would like to monitor the network and analyze the traffic and its performance in general. For example, how the bandwidth is consumed, if certain activities are unnecessary and how to improve the networks performance by blocking through the firewall like peer-to-peer applications, etc. I am using check point [...]
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| October 24, 2008 12:51 AM
3Com, Availability, Bandwidth, Benchmarking, Cisco, Data analysis, Fault isolation, Firewalls, Forensics, Foundry, Incident response, Intrusion management, Network applications management, Network management software, Network monitoring, Network security, Network testing, Networking, Performance management, Protocol analysis, Remote management, Security, VPN, Wireless
Hi, I have multiple remote sites. I would like to monitor the network and analyze the traffic and its performance in general. For example, how the bandwidth is consumed, if certain activities are unnecessary and how to improve the networks performance by blocking through the firewall like peer-to-peer applications, etc. I am using check point [...]
Software based WIN Simulation
Hi, I need to test out an application over WAN. The testing includes the response time with different delays and bandwidth requirements. Is there any piece of software (preferably opensource/freeware)which can simulate the WAN for me? The idea is to install two NICs in the Windows/Linux machine, put the software on and adjust delay and [...]
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| August 17, 2009 2:30 AM
Availability, Bandwidth, Benchmarking, Cabling, Cisco, Data analysis, Desktops, Development, Fault isolation, Foundry, Hardware, Hubs, Linux, Management, Microsoft Windows, Network applications management, Network management software, Network monitoring, Network testing, Networking, Nortel, Oracle, OS, Performance management, Protocol analysis, Remote management, Routers, SAP, Security, Servers, Software testing, SQL Server, Switches
Hi, I need to test out an application over WAN. The testing includes the response time with different delays and bandwidth requirements. Is there any piece of software (preferably opensource/freeware)which can simulate the WAN for me? The idea is to install two NICs in the Windows/Linux machine, put the software on and adjust delay and [...]
Network Resource Allocation cum Planning cum Technical Problem
This is the real commercial problem face by my company. Well, the reason I ask this problem is I salute and respect all of you as I believe all of you are as good as network solution company out there, or even better!! Lets me rephrase the entire problem again. Company expand so fast that [...]
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| May 22, 2006 10:17 AM
3Com, Access, Access control, Active Directory, Altiris, Application security, Availability, Avaya, backdoors, Bandwidth, Benchmarking, Bind, Biometrics, BMC, Browsers, Budgeting, Business/IT alignment, Cabling, Career development, Cisco, Compliance, Computer Associates, configuration, CRM, Current threats, Database, DataCenter, DB2, Dell, Desktop management applications, Desktops, DHCP, Digital certificates, Disaster Recovery, DNS, E-business, Encryption, Enterasys, Enterprise Desktop, Ethernet, Exchange, Fault isolation, FDDI, filtering, Firewalls, Forensics, Foundry, Frame Relay, General Directories, H.323, Hacking, Hardware, Hewlett-Packard, Hubs, human factors, IBM, IBM/Tivoli, Identity & Access Management, Incident response, Instant Messaging, Intel, Interoperability, InterSystems, Intrusion management, IPv4, IPv6, Juniper Networks, LANDesk, Laws, LDAP, Linux, Lotus Domino, Lucent, Management, Marimba, Microsoft Office, Microsoft Operations Manager, Microsoft Systems Management Server, Microsoft Windows, MPLS, MySQL, NetBIOS, Network applications management, Network management software, Network monitoring, Network protocols, Network security, Network testing, Networking, Networking services, NFS, Nortel, Novell, Novell IPX/SPX, Novell NDS, Online transaction processing, Oracle, OS, Partner facing, Patch management, patching, PEN testing, Performance management, Ping, Platform Security, Policies, Project management, Protocol analysis, provisioning, Regulations, Remote management, Risk management, ROI & cost justification, Routers, Secure Coding, Security, Security Program Management, Security tokens, Servers, Single sign-on, SIP, Software, Spyware, SQL, SQL Server, SSL/TLS, standards, Storage, Switches, Sybase, Systems management software, TCP, Tech support, Trojans, Unisys, Vector Networks, Vendors, Viruses, VPN, vulnerability management, Web security, WINS, Wireless, worms
This is the real commercial problem face by my company. Well, the reason I ask this problem is I salute and respect all of you as I believe all of you are as good as network solution company out there, or even better!! Lets me rephrase the entire problem again. Company expand so fast that [...]
Design NEW network cum NEW IT infrastructure-2
Company expand so fast that the IT infrastructure is not fast enough to cater high volume of traffic; the initial design is not scalable. The number of new branch offices setup caused the company pay a high price in the leased line communication. Salesman and management staffs dial into company networks via 56K modem to [...]
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| May 17, 2006 8:21 AM
3Com, Access control, Application security, Availability, Avaya, backdoors, Bandwidth, Benchmarking, Biometrics, Browsers, Budgeting, Business/IT alignment, Cabling, Cisco, Compliance, configuration, CRM, Current threats, Database, Dell, DHCP, Digital certificates, Disaster Recovery, DNS, Encryption, Enterasys, Exchange, Fault isolation, filtering, Firewalls, Forensics, Foundry, Hacking, Hardware, Hewlett-Packard, Hubs, human factors, Identity & Access Management, Incident response, Instant Messaging, Interoperability, Intrusion management, Juniper Networks, Lucent, Network applications management, Network management software, Network monitoring, Network security, Network testing, Networking, Networking services, Nortel, patching, PEN testing, Performance management, Ping, Platform Security, Policies, Protocol analysis, provisioning, Remote management, Risk management, Routers, Secure Coding, Security, Security Program Management, Security tokens, Servers, Single sign-on, Software, Spyware, SSL/TLS, Switches, TCP, Tech support, Trojans, Vendors, Viruses, VPN, vulnerability management, Web security, Wireless, worms
Company expand so fast that the IT infrastructure is not fast enough to cater high volume of traffic; the initial design is not scalable. The number of new branch offices setup caused the company pay a high price in the leased line communication. Salesman and management staffs dial into company networks via 56K modem to [...]
static ip is in the spam list
HELLO ALL, My static ip is in the spam list. What should I do? Thanks a lot
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| April 13, 2006 7:07 AM
Active Directory, Availability, Bandwidth, Benchmarking, Bind, Business/IT alignment, Cisco, DHCP, DNS, E-business, Ethernet, Fault isolation, Frame Relay, Instant Messaging, LDAP, Microsoft Windows, Network applications management, Network management software, Network monitoring, Network protocols, Network testing, Networking, Networking services, NFS, Novell NDS, Outsourcing, Performance management, Ping, Protocol analysis, Storage, Vendors, Web Services Standards, Web site design & management, WINS
HELLO ALL, My static ip is in the spam list. What should I do? Thanks a lot
Event ID 13508 in microsoft windwos 2000 server
Hi all I have a three servers with windows 2000 (service pack4 ) and its running active directory and DNS also. My global catalog server (PDC) am calling as server ?A? , others are server ?B? and server ?C?. These are two servers are acting as BDCs. One of the BDC?s Hard disk was crashed [...]
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| April 4, 2006 9:44 AM
Availability, Bandwidth, Benchmarking, Budgeting, Business/IT alignment, Career development, Compliance, DataCenter, Desktops, Fault isolation, Firewalls, Forensics, Incident response, Intrusion management, Laws, Management, Microsoft Windows, Network applications management, Network management software, Network monitoring, Network security, Network testing, Networking, OS, Outsourcing, Patch management, Performance management, Ping, Project management, Protocol analysis, Regulations, Remote management, ROI & cost justification, Security, Servers, SQL Server, standards, Storage, Vendors, VPN, Wireless
Hi all I have a three servers with windows 2000 (service pack4 ) and its running active directory and DNS also. My global catalog server (PDC) am calling as server ?A? , others are server ?B? and server ?C?. These are two servers are acting as BDCs. One of the BDC?s Hard disk was crashed [...]
Windows 2000 server EVENT ID 13508 Problem
Hi all am getting an event in my server id# 13508 Here am explaining my situation I have to windows2000 server which is running active directory and DNS. My PDC which is running global catlog server here am calling Server ?A? my BDC its running active directory and DNS I am calling as server ?B?. [...]
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| June 15, 2006 5:54 AM
Active Directory, DHCP, DNS, Fault isolation, Microsoft Windows, Network applications management, Networking, Networking services, Performance management
Hi all am getting an event in my server id# 13508 Here am explaining my situation I have to windows2000 server which is running active directory and DNS. My PDC which is running global catlog server here am calling Server ?A? my BDC its running active directory and DNS I am calling as server ?B?. [...]
DDos traffic generator
Hi all, We are testing SERVICE CONTROL ENGINE of Cisco. I would like to test the SCE for detecting and preventing DDOS traffic. For testing SCE, I need DDOS traffic generator software. I searched in the Google but i didn’t get. Can anybody help me to find out a DDOS traffic generator software. Can I [...]
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| March 20, 2006 11:39 PM
Bandwidth, Cabling, Fault isolation, Hardware, Hubs, Network applications management, Network testing, Networking, Remote management, Routers, Switches
Hi all, We are testing SERVICE CONTROL ENGINE of Cisco. I would like to test the SCE for detecting and preventing DDOS traffic. For testing SCE, I need DDOS traffic generator software. I searched in the Google but i didn’t get. Can anybody help me to find out a DDOS traffic generator software. Can I [...]
NMAP IN WIRELESS
Hello, Can any one explain me what is NMAP , how NMAP works and how to use it. Kind Regards, Gopal.
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| December 30, 2005 9:10 PM
3Com, Active Directory, Availability, Avaya, Bandwidth, Benchmarking, Bind, Cabling, Cisco, DataCenter, Desktop management applications, DHCP, DNS, Fault isolation, General Directories, Hardware, Hubs, Interoperability, LDAP, Lotus Domino, Microsoft Windows, Mobile, Mobile security, Network applications management, Network management software, Network monitoring, Network testing, Networking, Networking services, NFS, Novell NDS, Performance management, Ping, Protocol analysis, Remote management, Routers, Software, Switches, Tech support, VoIP, WINS, Wireless
Hello, Can any one explain me what is NMAP , how NMAP works and how to use it. Kind Regards, Gopal.
WIRELESS BRIDGES
Dear Sir’s, I have two wireless bridges. Master and Slave which are 800 ft apart and two high gain antennas are attached to these units. I am finding a disconnection problem with these bridges. It works for a while but gets disconnected and after doing powercycle on the slave end the bridge starts working once [...]
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| December 27, 2005 9:06 PM
3Com, Active Directory, Availability, Avaya, Bandwidth, Benchmarking, Bind, Cabling, Cisco, DataCenter, Desktop management applications, DHCP, DNS, Fault isolation, General Directories, Hardware, Hubs, Interoperability, LDAP, Lotus Domino, Microsoft Windows, Mobile, Mobile security, Network applications management, Network management software, Network monitoring, Network testing, Networking, Networking services, NFS, Novell NDS, Performance management, Ping, Protocol analysis, Remote management, Routers, Software, Switches, Tech support, VoIP, WINS, Wireless
Dear Sir’s, I have two wireless bridges. Master and Slave which are 800 ft apart and two high gain antennas are attached to these units. I am finding a disconnection problem with these bridges. It works for a while but gets disconnected and after doing powercycle on the slave end the bridge starts working once [...]
Remote Syslog with MySQL and PHP
Dear All, i want to set up a Remote Syslog with MySQL and PHP on system with whitebox linux,can some tell me a step by step on how to install and configure this,also the requirement needed to complete the task Regards Edwin
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| December 22, 2005 4:43 AM
3Com, Active Directory, Availability, Avaya, Bandwidth, Benchmarking, Billing and customer care, Billing Support Systems, Bind, Cabling, Cisco, Dell, Development, DHCP, DNS, Enterasys, Enterprise Desktop, Ethernet, Fault isolation, FDDI, Foundry, Frame Relay, H.323, Hardware, Hewlett-Packard, Hubs, IPv4, IPv6, Juniper Networks, Linux, Lucent, MPLS, MySQL, NetBIOS, Network management software, Network monitoring, Network protocols, Networking, Networking services, Nortel, Novell IPX/SPX, Performance management, Protocol analysis, Remote management, Routers, SIP, Switches, TCP
Dear All, i want to set up a Remote Syslog with MySQL and PHP on system with whitebox linux,can some tell me a step by step on how to install and configure this,also the requirement needed to complete the task Regards Edwin
Stop bit problem: USB to Serial Converter attached to motion controller, unable to set for 7-E-2
I have three different USB to Serial converters, one of them an isolated converter from B&B. One brand of motion controller I work on uses EVEN parity / 7 data bits / 2 stop bits as its default. I find that none of my converters will work on the controller in this configuration. If I [...]
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| November 22, 2005 5:36 PM
3Com, Active Directory, ActiveX, Administration, Apache, Automated, Availability, BASIC, Benchmarking, Business Objects, C, Cabling, Cape Clear Cape Connect, Career development, Cisco, Clustering, Cognos, Crystal Reports, Data analysis, Data Junction, Data management and storage, Data mining/analysis, Data warehousing applications, Database, DataCenter, DB2, Dell, Desktop management applications, Desktops, Development, DHCP, Distribution/logistics applications, DNS, Enterprise Desktop, Ethernet, Fault isolation, Fax and print management, FDDI, File, Frame Relay, Functional, H.323, Hardware, Hardware selection and management, Hewlett-Packard, Hewlett-Packard Application Server, Hubs, Hyperion, IBM, Informatica, Information Builders, Interoperability, Lifecycle development, Linux, Lotus Domino, Management, Manufacturing applications, Microprocessors, Microsoft Systems Management Server, Microsoft Windows, Migrations and upgrades, Monitoring, NCR, NCR/Teradata, Network applications management, Network connectivity, Network management software, Network monitoring, Network protocols, Network testing, Networking, Networking services, NIC, Novell IPX/SPX, Oracle, OS, Performance and availability, Performance management, Performance/Load, Ping, Power management, Printers, Programming Languages, Protocol analysis, Remote management, Routers, SAP, SAS Institute, Security, Servers, Software, Software testing, Software testing tools, SPSS, SQL Server, standards, Storage, Switches, Systems management software, TCP, Tech support, Thermal controls
I have three different USB to Serial converters, one of them an isolated converter from B&B. One brand of motion controller I work on uses EVEN parity / 7 data bits / 2 stop bits as its default. I find that none of my converters will work on the controller in this configuration. If I [...]
Restricted Groups
Hi Guys I have a query regarding the usage of restricted group in a domain enviroment. Could some pls explain the steps required to add Domain Administrator Account to the Local Administrators Groups of a node. I know this can be done but m not sure bout the steps. Please HELP!!!! Thanks Guys Asta La [...]
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| October 13, 2005 3:33 AM
Access, Active Directory, Altiris, Availability, Bandwidth, Benchmarking, Bind, Career development, DataCenter, Desktop management applications, Desktops, DHCP, DNS, Ethernet, Fault isolation, FDDI, Frame Relay, General Directories, H.323, Intel, IPv4, IPv6, LANDesk, LDAP, Lotus Domino, Management, Marimba, Microsoft Office, Microsoft Systems Management Server, Microsoft Windows, MPLS, NetBIOS, Network applications management, Network management software, Network monitoring, Network protocols, Network testing, Networking, Networking services, NFS, Novell, Novell IPX/SPX, Novell NDS, OS, Patch management, Performance management, Protocol analysis, Remote management, Security, Servers, SIP, SQL Server, TCP, Updates from SearchWindowsSecurity.com staff, Vector Networks, Windows
Hi Guys I have a query regarding the usage of restricted group in a domain enviroment. Could some pls explain the steps required to add Domain Administrator Account to the Local Administrators Groups of a node. I know this can be done but m not sure bout the steps. Please HELP!!!! Thanks Guys Asta La [...]
Setup an sms to email gateway
Required to setup an sms to email gateway so that customers can SMS the problem they face with Internet or other systems and it can be uploaded into the systems using an email.
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| September 19, 2005 2:42 AM
3Com, Access, Availability, Avaya, Bandwidth, Benchmarking, Cabling, Career development, Certifications, Cisco, DataCenter, Dell, Desktops, Enterasys, Enterprise Desktop, Ethernet, Exchange, Fault isolation, FDDI, Foundry, Frame Relay, H.323, Hardware, Hewlett-Packard, Hubs, IPv4, IPv6, Juniper Networks, Linux, Looking for a job, Lucent, Management, Microsoft Office, Microsoft Windows, MPLS, MySQL, NetBIOS, Network applications management, Network management software, Network monitoring, Network protocols, Network testing, Networking, Nortel, Novell IPX/SPX, OS, Patch management, People problems at work -- Get advice here, Performance management, Post a link to your IT resume, Protocol analysis, Remote management, Routers, Security, Servers, SIP, SQL Server, Switches, TCP, Updates from SearchSQLServer.com staff, Updates from SearchWindowsSecurity.com staff, Windows
Required to setup an sms to email gateway so that customers can SMS the problem they face with Internet or other systems and it can be uploaded into the systems using an email.
Providing 2 MBPS Internet Access to Two Different Network
Hello, Everybody Thanks for your answer. I have implemented new Internet connection its working fine.. Anyway. i want to know. How to Configure New Server, Also I have two Ethernet Card 0 / 1 There are two networks in my domain. There is administrative floor network and Local Students Network. ALso i hve internet conenction [...]
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| September 2, 2005 3:54 AM
Active Directory, Altiris, Availability, Bandwidth, Benchmarking, Bind, Cabling, DataCenter, Desktop management applications, DHCP, DNS, Exchange, Exchange security, Fault isolation, General Directories, Hardware, Intel, LANDesk, LDAP, Lotus Domino, Marimba, Microprocessors, Microsoft Windows, Network applications management, Network management software, Network monitoring, Network testing, Networking, Networking services, NFS, NIC, Novell NDS, Performance management, Ping, Printers, Protocol analysis, Remote management, Routers, WINS
Hello, Everybody Thanks for your answer. I have implemented new Internet connection its working fine.. Anyway. i want to know. How to Configure New Server, Also I have two Ethernet Card 0 / 1 There are two networks in my domain. There is administrative floor network and Local Students Network. ALso i hve internet conenction [...]





