Dear All, Thanks for Mohan sundaram for the support
>From Server Side, 1Yes Ping works contnously with External Static Ip 2.I Put DNS in Server But DNS having Problem able to ping from server itself but not from clients ( I given static dns server ip in resolv.conf file then it is working name resolution google.com yahoo.com generally it works well 3. From server side every thing works well >From Client Side 1. Able to Browse via squid ( but limited time only then Error State as Connection time out, Network time out , at the same time i check in server everything works well ie browsing) some time client machine not able to ping the server IPs ( limited time only ) while activate server as a router able to ping static ip like google, yahoo from cleints , 2. Not able to send Mails via outlook 3. 10 minutes or 8 minutes automatically not able to connect with server ips 4. yahoo, google. gmail are not able to ping from client side 5 here i attached the output of iptables iformation Table: nat Chain PREROUTING (policy ACCEPT) num target prot opt source destination 1 DNAT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:80 to:172.16.2.2:8080 2 REDIRECT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:80 redir ports 8080 Chain POSTROUTING (policy ACCEPT) num target prot opt source destination 1 MASQUERADE all -- 0.0.0.0/0 0.0.0.0/0 Chain OUTPUT (policy ACCEPT) num target prot opt source destination Table: mangle Chain PREROUTING (policy ACCEPT) num target prot opt source destination Chain INPUT (policy ACCEPT) num target prot opt source destination Chain FORWARD (policy ACCEPT) num target prot opt source destination Chain OUTPUT (policy ACCEPT) num target prot opt source destination Chain POSTROUTING (policy ACCEPT) num target prot opt source destination Table: filter Chain INPUT (policy DROP) num target prot opt source destination 1 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 2 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 3 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 4 LOG all -- 0.0.0.0/0 0.0.0.0/0 LOG flags 0 level 4 5 DROP all -- 0.0.0.0/0 0.0.0.0/0 Chain FORWARD (policy ACCEPT) num target prot opt source destination 1 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 Chain OUTPUT (policy ACCEPT) num target prot opt source destination 1 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 2 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 Note : My Requirement is All windows get Internet , Remote Desktop, Team viewer, Skype, via linux only linux is the Ruler I am not use any Domain based login From client side ( this is the Later Implementation ) Expect your Positive suggestion with Regards, Mettur Mohan 09715407268 On Mon, Sep 7, 2009 at 10:58 PM, mettur salem<metturmohan2...@gmail.com> wrote: > > 1.still i have problem in internet connectivity ( network connection > timeout internet is via squid proxy server ) > 2. so i stoped the firewall now not net connecitivity problem but Remote > desktop connection not able to do from windows pc (ie, (not able) packets > are moved to reach linux server and going outside ) Turning off the firewall is not the solution. Configure the firewall to allow outgoing HTTP/HTTPS connections. So also SMTP/POP3. > 3. outlook mails are not able to delivered I installed the proxy address ( > smtp mail.parveen.com , pop3 mail.parveen .com ) > 4. so i put dns in server and checked still i am not able to send and > receive the outlook mails via linux server > 5. i checked the squid logs files no packets regarding the mail > information only web caching is working well via squid proxy Squid is not a SMTP/POP proxy and so you will not see that. Furthermore, you are only doing a redirect for HTTP to squid. How would SMTP or POP go thro' a proxy (if installed) for those protocols? > > I expect your valuable suggestion I thank to all especially arun sag his > mail in burntomlete in squid is super thanks ( i like load balancing but now > i am not move there still i have problem ) >You'll need to go thro' this resolution in a systematic manner. Stop, >resolve a step and then proceed. >1. Check if server's internet connection is working properly. Can be >verified by pinging an external IP. >2. Check if name resolution works properly on the server. Can be >verified by pinging a name like yahoo.com. >3. Check if firewall allows HTTP(s)/POP(s)/SMTP(s)/RDP by trying the .>browser, RDP client and mail client like Thunderbird on the server This clears the server side. Next, lets come to the client. >1. Ping the server IP and check it is reachable. Am assuming that machine is also configured as your gateway. >2. Try nslookup to see if names get resolved. If not, check your DNS client config. If you are using the server as your client's DNS server, check the DNS server configuration on this step's failure. >3. Try pinging yahoo.com. If it does not work, check SNAT configuration on server. >4. Am assuming your transparent proxy works well as you've stated that browsing works. >5. Now check the mail client on the LAN client. Configure the external mail server names for SMTP and POP. make sure you have the relevant auth settings turned on. -- Mohan Sundaram _______________________________________________ To unsubscribe, email ilugc-requ...@ae.iitm.ac.in with "unsubscribe <password> <address>" in the subject or body of the message. http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
