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Search: Posts Made By: DimaYasny ; Forum: Network Security and child forums
Forum: Network Security Jun 14th, 2009
Replies: 2
Views: 442
Posted By DimaYasny
if it was linux, all you would need it to connect to an online repository :)
Forum: Network Security Jun 14th, 2009
Replies: 4
Views: 442
Posted By DimaYasny
it is possible that the key was used to only verify the site isn't a phishing site, but the communication didn't require encryption
Forum: Network Security Jun 9th, 2009
Replies: 2
Views: 766
Posted By DimaYasny
looks like a collaborative spam to me...
Forum: Network Security Nov 20th, 2008
Replies: 3
Views: 696
Posted By DimaYasny
Forum: Network Security Sep 25th, 2008
Replies: 10
Views: 1,908
Posted By DimaYasny
AVG is not free for commercial use. if you use the free version in a school, you are breaking the law
Forum: Network Security Sep 23rd, 2008
Replies: 8
Views: 2,553
Posted By DimaYasny
and if you have to move the system to another port, what then?

also, the ports are identified by their MACs, what will stop the hacker from spoofing the port MAC?
Forum: Network Security Sep 23rd, 2008
Replies: 8
Views: 2,553
Posted By DimaYasny
let me repeat myself - MAC authentication is not secure. in order to make is secure, you need to make the MAC encrypted, and for that, since you are encrypting, there is no need to auth by MAC -...
Forum: Network Security Sep 23rd, 2008
Replies: 8
Views: 2,553
Posted By DimaYasny
MAC auth is transferred in clear text, so the MAC can easily be intercepted, or sniffed directly, and spoofinng a MAC is very easy

what exactly are you trying to make secure?
Forum: Network Security Sep 23rd, 2008
Replies: 8
Views: 2,553
Posted By DimaYasny
what exactly do you need clarified?

yes, you can find out a MAC by simply pinging the IP
yes, a MAC can easily be spoofed
yes, some NICs have a link, even while the PC is off, it is used for WoL...
Forum: Network Security Sep 20th, 2008
Replies: 4
Views: 946
Posted By DimaYasny
why? when you monitor a single system, a large scale solution is overkill
Forum: Network Security Sep 19th, 2008
Replies: 4
Views: 946
Posted By DimaYasny
perfmon for windows, any custom script for linux/unix
Forum: Network Security Sep 19th, 2008
Replies: 4
Views: 2,866
Posted By DimaYasny
if you need to monitor the desktop, you will need one type of software.

but if you want to monitor the browsing activity, you can either check the IE history, or set up a proxy, and monitor the...
Forum: Network Security Jul 3rd, 2008
Replies: 2
Views: 643
Posted By DimaYasny
logmein is free. SSL protected

webex has more features and has good security as well
Forum: Network Security Jun 20th, 2008
Replies: 10
Views: 1,908
Posted By DimaYasny
can you please google before asking questions on the forum?
Forum: Network Security Apr 21st, 2008
Replies: 3
Views: 1,266
Posted By DimaYasny
a second router is the way to go of course
and it's not expensive at all
Forum: Network Security Mar 16th, 2008
Replies: 5
Views: 1,881
Posted By DimaYasny
and switch the encryption to wpa
wep is VERY easy to crack
Forum: Network Security Mar 15th, 2008
Replies: 2
Views: 5,226
Posted By DimaYasny
start telnet server
make sure it listens on port 23
make sure port is open on firewall
make sure the server is reachable remotely at all
Forum: Network Security Mar 14th, 2008
Replies: 5
Views: 1,552
Posted By DimaYasny
TheOgre, not every installation of CP-NG has the VPN module in it. It's actually a very expensive module, even more expensive than the AD auth module (which can be replaced by a simple script talking...
Forum: Network Security Mar 13th, 2008
Replies: 2
Views: 936
Posted By DimaYasny
this looks like the makefile just isn't there.
Forum: Network Security Mar 13th, 2008
Replies: 3
Views: 1,260
Posted By DimaYasny
if the router has a QoS feature you can try to use that. otherwise, nothing on YOUR laptop will help.
Forum: Network Security Mar 12th, 2008
Replies: 4
Views: 1,048
Posted By DimaYasny
if those are brand name servers, the best way to go is to use their specific SNMP software.

Dell provides ITAssistant and OpenManage for that.

Another software to use is Nagios - free and very...
Forum: Network Security Mar 12th, 2008
Replies: 3
Views: 2,623
Posted By DimaYasny
why do you think someone has access to your computer?
Forum: Network Security Mar 11th, 2008
Replies: 6
Views: 3,330
Posted By DimaYasny
a server with active directory is mainly there for centralised user administration.
if you don't want that, you need to keep a list of same users with same passwords on all workstations. if you do...
Forum: Network Security Mar 10th, 2008
Replies: 6
Views: 3,330
Posted By DimaYasny
create some users, they have to be the same on all machines, and have the same passwords
set up permissions per user

create users for internet use only - deny them the permissions
Forum: Network Security Mar 10th, 2008
Replies: 1
Views: 1,641
Posted By DimaYasny
don't think that can be done. you can stop computers from announcing themselves to the master browser, but not from the AD DNS
Forum: Network Security Mar 9th, 2008
Replies: 5
Views: 1,552
Posted By DimaYasny
Forum: Network Security Mar 8th, 2008
Replies: 3
Views: 2,326
Posted By DimaYasny
MSN is not secure. for secure communications, use encrypted Jabber, over a secure VPN
Forum: Network Security Feb 10th, 2008
Replies: 7
Views: 1,300
Posted By DimaYasny
in spite of the many rumours, nobody could prove the danger in skype as something tangible
Forum: Network Security Feb 9th, 2008
Replies: 7
Views: 1,300
Posted By DimaYasny
I remember Mail Marshal, it was replaced by Debian 3.1+Qmail+SA and the spam levels dropped by 92%
Forum: Network Security Feb 9th, 2008
Replies: 7
Views: 1,300
Posted By DimaYasny
cisco firewall box is not better than checkpoint SPLAT. and it's not as configurable. and it's more expensive
Forum: Network Security Feb 9th, 2008
Replies: 7
Views: 1,300
Posted By DimaYasny
first of all, get a proper firewall and a front-end for exchange. with a good stateful-inspection enabled firewall like checkpoint NG1, most viruses will be stopped before they have a chance to...
Forum: Network Security Feb 9th, 2008
Replies: 6
Views: 2,202
Posted By DimaYasny
Forum: Network Security Feb 9th, 2008
Replies: 6
Views: 2,202
Posted By DimaYasny
it is possible, but deciphering video throughput is too much of a hassle to bother with
Forum: Network Security Feb 7th, 2008
Replies: 3
Views: 1,999
Posted By DimaYasny
1. are you sure the ports are the right ports? if it was blocking you it wouldn't work min DMZ either
2. are you sure you are doing the port forwarding bit correctly? I've never even heard of...
Forum: Network Security Feb 7th, 2008
Replies: 3
Views: 1,999
Posted By DimaYasny
DMZ is not the answer. Basically in SOHO (home) routers DMZ is a single IP taht all ports, except for the specially designated ones are forwarded to. In order to set up proper port forwarding, find...
Forum: Network Security Feb 5th, 2008
Replies: 7
Views: 1,187
Posted By DimaYasny
well, another good cert to have would be the one from CheckPoint and from Juniper
Forum: Network Security Feb 5th, 2008
Replies: 7
Views: 1,187
Posted By DimaYasny
start with CompTIA Security+, CISSP after that
Forum: Network Security Feb 4th, 2008
Replies: 5
Views: 1,209
Posted By DimaYasny
Forum: Network Security Feb 1st, 2008
Replies: 2
Views: 1,134
Posted By DimaYasny
could also be Admin (capital A)
Forum: Network Security Jan 27th, 2008
Replies: 10
Views: 1,876
Posted By DimaYasny
no problem mate, there really is no point in me explaining all that, when everything is well documented in wiki, RFCs and quite a few other places
Showing results 1 to 40 of 90

 


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