Windows “unable to find certificate”? IEEE 802.1x disabled….
Hey all, I’m having a strange problem with one of my offsite users. We have our router set up as WPA-PSK authentication, and on a users laptop for the past while his wireless was working perfectly. The router is an RSU-2510 from nextnet. Yesterday the user came in, and his laptop was displaying the message [...]
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| June 12, 2007 11:55 AM
Microsoft Windows, Networking
Hey all, I’m having a strange problem with one of my offsite users. We have our router set up as WPA-PSK authentication, and on a users laptop for the past while his wireless was working perfectly. The router is an RSU-2510 from nextnet. Yesterday the user came in, and his laptop was displaying the message [...]
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| June 12, 2007 11:55 AM
Microsoft Windows, Networking
Exchange Server / Email Proxy / Network Design / General Questions
I’m not sure if I should try to tackle all my questions in one post, but I will attempt to be as clear and accurate as possible. Most likely my questions are simple for a person with experience. Overall Goal: Implement Exchange Server 2007 and Barracuda Spam Filter. Our current email and external DNS is [...]
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| June 7, 2007 12:02 PM
DataCenter, Desktops, Exchange, Exchange security, Management, Microsoft Windows, Networking, OS, Security, Servers, Spam, SQL Server
I’m not sure if I should try to tackle all my questions in one post, but I will attempt to be as clear and accurate as possible. Most likely my questions are simple for a person with experience. Overall Goal: Implement Exchange Server 2007 and Barracuda Spam Filter. Our current email and external DNS is [...]
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| June 7, 2007 12:02 PM
DataCenter, Desktops, Exchange, Exchange security, Management, Microsoft Windows, Networking, OS, Security, Servers, Spam, SQL Server
Exchange Server 2003 & Missing MX Record
I am having a weird problem. Online tests show that my mail server is missing its MX record. I do know it’s there. According to mxtoolbox.com and dnsstuff.com, my authoritive server does not have the record. I am getting delay messages from some domains like swbell and alltel.
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| June 15, 2010 11:24 AM
DNS, Exchange, Microsoft Windows
I am having a weird problem. Online tests show that my mail server is missing its MX record. I do know it’s there. According to mxtoolbox.com and dnsstuff.com, my authoritive server does not have the record. I am getting delay messages from some domains like swbell and alltel.
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| June 15, 2010 11:24 AM
DNS, Exchange, Microsoft Windows
LAN design
There are many factors to take into account when designing a LAN. Ten such factors are 1. End (user) device 2.Protocols 3. Application 4. Bandwidth 5.Throughput 6. LAN topology 7.Cabling 8. Segmentation 9. WAN connection 10. Flexibility For each item what are the essential points that need to be considered?
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| March 5, 2012 6:10 PM
Networking
There are many factors to take into account when designing a LAN. Ten such factors are 1. End (user) device 2.Protocols 3. Application 4. Bandwidth 5.Throughput 6. LAN topology 7.Cabling 8. Segmentation 9. WAN connection 10. Flexibility For each item what are the essential points that need to be considered?
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| March 5, 2012 6:10 PM
Networking
Intrussion detection
Does any one know of any goof Intrussion detection system boxes which are not crazy expensive and support up to 1GB lines.
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| February 4, 2009 12:10 PM
Cabling, Firewalls, Forensics, Hubs, Incident response, Intrusion management, Network monitoring, Routers, Security, Switches, VPN, Wireless
Does any one know of any goof Intrussion detection system boxes which are not crazy expensive and support up to 1GB lines.
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| February 4, 2009 12:10 PM
Cabling, Firewalls, Forensics, Hubs, Incident response, Intrusion management, Network monitoring, Routers, Security, Switches, VPN, Wireless
Can’t login
Okay I did a dumb thing. I took a computer that is connected to a domain and changed it to a workgroup thinking stupidly (I was in a stressed hurry) that it would work outside the networked office. When it boots up it comes up with the login but it won’t accept it. I’ve even [...]
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| May 31, 2007 10:56 AM
Hardware, Networking, Tech support
Okay I did a dumb thing. I took a computer that is connected to a domain and changed it to a workgroup thinking stupidly (I was in a stressed hurry) that it would work outside the networked office. When it boots up it comes up with the login but it won’t accept it. I’ve even [...]
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| May 31, 2007 10:56 AM
Hardware, Networking, Tech support
ISP blocks VPN connection
My ISP blocks any attempt to establish a VPN connection and I was wondering if there is a workaround for this or if there are alternatives? I am using Windows XP. Any suggestion would be greatly appreciated.
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| December 13, 2007 3:25 AM
Firewalls, Forensics, Incident response, Intrusion management, Network security, VPN, Wireless
My ISP blocks any attempt to establish a VPN connection and I was wondering if there is a workaround for this or if there are alternatives? I am using Windows XP. Any suggestion would be greatly appreciated.
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| December 13, 2007 3:25 AM
Firewalls, Forensics, Incident response, Intrusion management, Network security, VPN, Wireless
a collection of servers that communicate through a high speed link
i want to build a server farm for database server.the server will be replicated the network must operate reliably and quickly and must be able to connect to other devices.now i want to develop two plans with different topologies for implementing this server farm.thank you
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| May 29, 2007 12:19 AM
Availability, Bandwidth, Networking
i want to build a server farm for database server.the server will be replicated the network must operate reliably and quickly and must be able to connect to other devices.now i want to develop two plans with different topologies for implementing this server farm.thank you
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| May 29, 2007 12:19 AM
Availability, Bandwidth, Networking
Procedures for a new area.
We are a company where we have expirience on network remote administration and now we have open a new area, The area of security. Now I need to start to make new procedures like when a new customer come to us and ask if we can handle the security for his network… I need to [...]
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| May 28, 2008 10:13 PM
Access control, Application security, backdoors, Biometrics, Browsers, Cabling, Compliance, configuration, CRM, Current threats, Database, DataCenter, Digital certificates, Disaster Recovery, Encryption, Exchange, filtering, Firewalls, Forensics, Hacking, Hardware, Hubs, human factors, Identity & Access Management, Incident response, Instant Messaging, Intrusion management, Network management software, Network security, Networking, Outsourcing, patching, PEN testing, Platform Security, Policies, Project management, provisioning, Remote management, Risk management, Routers, Secure Coding, Security, Security Program Management, Security tokens, Servers, Single sign-on, Spyware, SSL/TLS, Switches, Trojans, Viruses, VPN, vulnerability management, Web security, Wireless, worms
We are a company where we have expirience on network remote administration and now we have open a new area, The area of security. Now I need to start to make new procedures like when a new customer come to us and ask if we can handle the security for his network… I need to [...]
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| May 28, 2008 10:13 PM
Access control, Application security, backdoors, Biometrics, Browsers, Cabling, Compliance, configuration, CRM, Current threats, Database, DataCenter, Digital certificates, Disaster Recovery, Encryption, Exchange, filtering, Firewalls, Forensics, Hacking, Hardware, Hubs, human factors, Identity & Access Management, Incident response, Instant Messaging, Intrusion management, Network management software, Network security, Networking, Outsourcing, patching, PEN testing, Platform Security, Policies, Project management, provisioning, Remote management, Risk management, Routers, Secure Coding, Security, Security Program Management, Security tokens, Servers, Single sign-on, Spyware, SSL/TLS, Switches, Trojans, Viruses, VPN, vulnerability management, Web security, Wireless, worms
Message text for users attempting to log on
We used to have Windows 2000 Small Business Server running on our primary domain controller. We have recently replaced it with a system running Windows 2003 Small Business Server. On the previous system we had a setting in Group PolicyComputer ConfigurationSecurity SettingsLocal PoliciesSecurity Options where I could display a message on the users screen prior [...]
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| May 23, 2007 10:08 AM
Networking, Security
We used to have Windows 2000 Small Business Server running on our primary domain controller. We have recently replaced it with a system running Windows 2003 Small Business Server. On the previous system we had a setting in Group PolicyComputer ConfigurationSecurity SettingsLocal PoliciesSecurity Options where I could display a message on the users screen prior [...]
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| May 23, 2007 10:08 AM
Networking, Security
flags in ipv4 header
the 3 flag bits in ipv4 header are. 1 – whether this fragmented part is last or not. 2 – to fragment a message or not. 3 – reserved. so if my message length is 500bytes and maximum segment size is only 200bytes and i want to send this messase but MIDDLE BIT VALUE IS [...]
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| May 17, 2007 6:32 PM
IPv4, Networking, Ping
the 3 flag bits in ipv4 header are. 1 – whether this fragmented part is last or not. 2 – to fragment a message or not. 3 – reserved. so if my message length is 500bytes and maximum segment size is only 200bytes and i want to send this messase but MIDDLE BIT VALUE IS [...]
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| May 17, 2007 6:32 PM
IPv4, Networking, Ping
eap-tls failing with domain certificates and 1200 APs
Using WPA TKIP with windows domain controller as certificate server. The IAS server is also a domain controller. Native 2003 domain configured to give out certificates automatically. This worked in my lab environment using a single 2003 box built to do all server functions. Cisco debug shows “server response: FAIL” Later, “failed: EAP reason 1″ [...]
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| May 25, 2007 5:51 PM
Active Directory, Wireless
Using WPA TKIP with windows domain controller as certificate server. The IAS server is also a domain controller. Native 2003 domain configured to give out certificates automatically. This worked in my lab environment using a single 2003 box built to do all server functions. Cisco debug shows “server response: FAIL” Later, “failed: EAP reason 1″ [...]
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| May 25, 2007 5:51 PM
Active Directory, Wireless
rply
hello sir instead of writting 3 words “school level question”. i think u can write yes or no????? i m confused as in some publications it is written dat MAC address is globally unique…..but others say dat only PUBLIC ip address are uniue and not mac address. my question…. if mac address is not unique [...]
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| May 17, 2007 6:19 AM
Bandwidth, Cabling, Hardware, Hubs, Networking, Ping, Routers, Switches
hello sir instead of writting 3 words “school level question”. i think u can write yes or no????? i m confused as in some publications it is written dat MAC address is globally unique…..but others say dat only PUBLIC ip address are uniue and not mac address. my question…. if mac address is not unique [...]
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| May 17, 2007 6:19 AM
Bandwidth, Cabling, Hardware, Hubs, Networking, Ping, Routers, Switches
rply soon-2
plz tell me what is default gateway????
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| May 16, 2007 12:47 PM
Availability, Cabling, Hardware, Hubs, IPv4, IPv6, Networking, Routers, Switches
plz tell me what is default gateway????
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| May 16, 2007 12:47 PM
Availability, Cabling, Hardware, Hubs, IPv4, IPv6, Networking, Routers, Switches
rply soon
plz tell me whether MAC adress is globally unique or not……. also tell me what is true.. PUBLIC ip adresss r globally uniuqe” or “ip adress are unique. also tell me in which part of world IPV6 is now used in majority?????
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| December 20, 2007 12:46 PM
Availability, Cabling, Hardware, Hubs, IPv4, IPv6, Networking, Routers, Switches
plz tell me whether MAC adress is globally unique or not……. also tell me what is true.. PUBLIC ip adresss r globally uniuqe” or “ip adress are unique. also tell me in which part of world IPV6 is now used in majority?????
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| December 20, 2007 12:46 PM
Availability, Cabling, Hardware, Hubs, IPv4, IPv6, Networking, Routers, Switches
Router Performance Evaluation
Hi I would like to do an investigation about router performance of multiple vendors. What commands, parameters or procedures do you recommend me in order to recollect data for this objective? I’m thinking of comparing a Cisco 2600 router with a Xorp router to begin with my little investigation. Any idea is very much appreciated. [...]
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| May 21, 2007 11:59 AM
Cabling, Hardware, Hubs, Networking, Routers, Switches
Hi I would like to do an investigation about router performance of multiple vendors. What commands, parameters or procedures do you recommend me in order to recollect data for this objective? I’m thinking of comparing a Cisco 2600 router with a Xorp router to begin with my little investigation. Any idea is very much appreciated. [...]
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| May 21, 2007 11:59 AM
Cabling, Hardware, Hubs, Networking, Routers, Switches
how toconfigure ipadress through run
plz tell me how to configure ipadress through cmd prompt or through run??????
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| May 17, 2007 7:37 AM
Availability, Bandwidth, Business/IT alignment, Cabling, Hardware, Hubs, Networking, Ping, Project management, Routers, Switches
plz tell me how to configure ipadress through cmd prompt or through run??????
Answer Question
| May 17, 2007 7:37 AM
Availability, Bandwidth, Business/IT alignment, Cabling, Hardware, Hubs, Networking, Ping, Project management, Routers, Switches
Event ID 4515 – zone exists in more than 1 location in Active Directory
I posed a question a couple of weeks ago and had no response so I’m hoping I just worded it badly. I’m desperate to sort this out so I’m having another try. The first error I got in my DNS log was Event ID 4515 “The zone contoso.com was previously loaded from the directory partition [...]
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| May 17, 2007 7:31 AM
Active Directory, Availability, DNS, Microsoft Windows, Networking, Tech support
I posed a question a couple of weeks ago and had no response so I’m hoping I just worded it badly. I’m desperate to sort this out so I’m having another try. The first error I got in my DNS log was Event ID 4515 “The zone contoso.com was previously loaded from the directory partition [...]
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| May 17, 2007 7:31 AM
Active Directory, Availability, DNS, Microsoft Windows, Networking, Tech support
Is there a policy or other way……………………-2
Hi, I have a print server that I share printers. Is there a policy for domain or OU’s,or other way,to take a copy of files that users send for printers!!??? Thank you. —– Regards Mahnaz
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| May 15, 2007 5:19 AM
Networking, Tech support
Hi, I have a print server that I share printers. Is there a policy for domain or OU’s,or other way,to take a copy of files that users send for printers!!??? Thank you. —– Regards Mahnaz
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| May 15, 2007 5:19 AM
Networking, Tech support
Is there a policy or other way……………………
Hi, I have a print server that I share printers. Is there a policy for domain or OU’s,or other way,to take a copy of files that users send for printers!!??? Thank you. —– Regards Mahnaz
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| May 16, 2007 5:17 AM
Networking, Tech support
Hi, I have a print server that I share printers. Is there a policy for domain or OU’s,or other way,to take a copy of files that users send for printers!!??? Thank you. —– Regards Mahnaz
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| May 16, 2007 5:17 AM
Networking, Tech support
