Daz's bits and bobs …bytes bits
To show what routes your cisco router currently has loaded type the following command (from the enable prompt) ;
show ip route
To add any new static routes you need to use the following command (from the config terminal prompt) ;
ip route 10.10.20.0 255.255.255.0 192.168.100.1
the syntax as above is ip route network netmask gateway
If you find alot of MLS entries in your running-config file you may have QoS enabled. Within the lab i dont require QoS (Quality of Service) to be enabled so have disabled it via this command (config t);
no mls qos
Note: this was a 2960G switch.
Remember to save running config to startup config. Done.
A good reference page here…
The first place to look for increasing your hit ratio is the refresh_pattern parameter within the squid.conf file.
Note: the following applies to squid 3.0 and higher only….
I have found a really good page here http://linux.com/archive/feature/153221 that explains some good setups if you with to increase your cache hits…
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern -i \.(gif|png|jpg|jpeg|ico)$ 10080 90% 43200 override-expire ignore-no-cache ignore-no-store ignore-private
refresh_pattern -i \.(iso|avi|wav|mp3|mp4|mpeg|swf|flv|x-flv)$ 43200 90% 432000 override-expire ignore-no-cache ignore-no-store ignore-private
refresh_pattern -i \.(deb|rpm|exe|zip|tar|tgz|ram|rar|bin|ppt|doc|tiff)$ 10080 90% 43200 override-expire ignore-no-cache ignore-no-store ignore-private
refresh_pattern -i \.index.(html|htm)$ 0 40% 10080
refresh_pattern -i \.(html|htm|css|js)$ 1440 40% 40320
refresh_pattern . 0 40% 40320
This is an example of a site that you may wish to heavily cache…
refresh_pattern -i youtube.com/.* 10080 90% 43200
http://wiki.squid-cache.org/ConfigExamples/DynamicContent/YouTube
http://wiki.squid-cache.org/ConfigExamples/DynamicContent/YouTube
# REMOVE these lines from squid.conf acl QUERY urlpath_regex cgi-bin \? cache deny QUERY
# Break HTTP standard for flash videos. Keep them in cache even if asked not to. refresh_pattern -i \.flv$ 10080 90% 999999 ignore-no-cache override-expire ignore-private # Apparently youtube.com use 'Range' requests # - not seen, but presumably when a video is stopped for a long while then resumed, (or fast-forwarded). # - convert range requests into a full-file request, so squid can cache it # NP: BUT slows down their _first_ load time. quick_abort_min -1 KB # Also videos are LARGE; make sure you aren't killing them as 'too big to save' # - squid defaults to 4MB, which is too small for videos and even some sound files maximum_object_size 4 GB # Let the clients favorite video site through with full caching # - they can come from any of a number of youtube.com subdomains. # - this is NOT ideal, the 'merging' of identical content is really needed here acl youtube dstdomain .youtube.com cache allow youtube # kept to demonstrate that the refresh_patterns involved above go before this. # You may be missing the CGI pattern, it will need to be added if so. refresh_pattern -i (/cgi-bin/|\?) 0 0% 0 refresh_pattern . 0 0% 4320
Sometimes when logged into a router or switch via the null modem (console port) the console messages make it hard to see the commands you are trying to run.
There is a way to turn off the messages on the console session. Log on to your switch router, enter into configuration terminal mode then type…
no logging console
Done
I’ve had this on a few windows 2003 machines, where the “DHCP client” service refuses to start and prompts with an access denied window.
Unsure of the cause at this point (it may be a security patch), but here is the fix…
Give the local “network service” account full rights to the following registry key;
hkey_local_machine\system\currentcontrolset\services\dhcp
Now try starting the service, should work. In some cases you may also need to add the rights to the following key..
hkey_local_machine\system\currentcontrolset\services\tpip
Done.