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**IP baseed Authentication in Kamailio for Peers. ** > route[PEER]{ if (allow_trusted("$si","$(proto)")) { xlog("L_INFO","\n\n–Trusted IP – $si – $proto"); record_route(); route(LCR); }; if (allow_address("1", "$si", "$sp")) { xlog("

**MySQL View to simplify Kamailio LCR Tables ** > create view openser.nt_dialplan As SELECT t.rule_id,r.lcr_id,prefix,from_uri,stopper,enabled,gw_id,priority,weight FROM lcr_rule r, lcr_rule_target t WHERE r.id = t.rule_id

1. Install rtpproxy : > `http://b2bua.org/chrome/site/rtpproxy-1.2.1.tar.gz``` > tar -zxvf rtpproxy-1.2.1.tar.gz<br></br> cd rtpproxy-1.2.1<br></br> ./configure<br></br> make<br><

Follow the tutorial here to implement LCR with kamailio : 1. Add lcr.so to load module loadmodule lcr.so 2. Add required parameters to the module modparam(“lcr”,”db_url”,DBURL) modparam(“lcr”, “gw_uri_avp”, “$avp(i:709)”) modparam(“lcr”, “ruri_user_avp”, “$avp(i:500)”) modparam(“lcr”, “flags_

If you need to install additional modules you might need after you install kamailio : 1. cd /usr/local/src/kamailio-3.1.1 2.make FLAVOUR=kamailio cfg 3.make install-modules modules=modules/lcr Assuming that lcr is the module that you want to install additionally.

You can use ngrep to diagnose your sip or other network activity : Dependency : libpcap-devel yum install libpcap-devel Download ngrep [http://downloads.sourceforge.net/project/ngrep/ngrep/1.45/ngrep-1.45.tar.bz2?r=http%3A%2F%2Fngrep.sourceforge.net%2Fdownload.html&ts=1296767443&use_mirror=voxel] wget http:

<strong>Dependencies :</strong><br></br> Yum install bison pcre-devel libpcap-devel``` **Installation :** 1. Go to /usr/local/src/ 2. Download The latest version of kamailio 3.1.2 from source : [Download Latest Kamailio Source Here](http://www.kamailio.org/pub/kamailio/latest/src/

Reset Mysql Root Password 1. Kill the mysql daemon by loggin in as root 2. Start mysql in safe mode : mysqld_safe --skip-grant-tables 3. SSH using another session or login to another terminal<br></br> 4. Connect to mysql without password, you should be able to

If you want to display a line, that does not begin with a pattern you can use grep to achieve that. It is specially useful when you want to view the lines that are not commented in a configuration file. grep -v “^;” ( This will display lines that dont start with

Sync the Time once a day at 2.00 `0 2 * * * /usr/sbin/ntpdate -s -b -p 8 -u``` or 0 2 * * * /usr/sbin/ntpdate -s -b -p 8 -u 0.us.pool.ntp.org

Find and Display a line with a value (eg. ;value) sed -n '/startpattern/,/endpattern/{s/;value//p}' Filepath Print Value Between Two patterns Exclusive ( Single Line ): sed 's/.pattern1(.)pattern2.*/\1/' eg.Following code displays value between < and > sed 's/../\1/' Print

This is a tutorial to configure bind dns server with Views . Views help you serve different results based on the query source. 1. Create an RNDC Key : key "rndc-key" { algorithm hmac-md5; secret "yourrndckeyhere"; } 2. Create a Transaction Signature Key : key "tsigkey" { algorithm "hmac-md5&

diff –changed-group-format=’%

You can utilize bash to delete files from a list in text file : for i in cat filetoremove.txt ; do rm $i;done

**Search and Replace ** Append a string to start of  every other line: g#^# if line('.')%2|s#^#http://test # or :g/^/ if line('.')%2 | s/^/word/ or :g/^/ if line('.')%2|s/^/zz / Search and Replace a string : %s/string/newstring/ [ Options : g = Replace

Configure Linux As A Router: 1. Enable Ip Forwarding in sysctl.conf net.ipv4.ip_forward=1 Configure Firewall, assuming eth0 as WAN Interface, eth1 is LAN Interface : iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE iptables -A FORWARD -i eth1 -j ACCEPT Port Forwarding With IPTables : -A PREROUTING

You can clone images in vmware server via command line as : vmkfstools -i source.vmdk destination.vmdk

Dynamic Dns : dnssec-keygen -a HMAC-MD5 -b 128 -n USER DYNAMIC_DNS_KEY cat Kdynamic_dns_key*.private key :sdflkjdfskdlfsjdfj vi /etc/named.conf key DYNAMIC_DNS_KEY{ algorithm hmac-md5; secret kdjfkdjkfd (key from above); }; zone "test.com" IN{ type master; file "data/master-example.com"; allow-update {key

1. Create a key using putty gen. 2. Paste the content into .ssh/authorized_keys file . 3. You should be able to login without password. In linux you can generate the key using : ssh-keygen -t rsa Then copy the content of id_rsa.pub to .ssh/authorized_keys cat id_

You can change the login background in windows 7 without any hacks or software. Go to : C:\windows\system32\oobe Create a new folder called Info C:\windows\system32\obe\Info Now create  a folder called backgrounds. C:\windows\system32\obe\Info\backgrounds Put the picture that you want to

useradd -s /bin/false -d /dev/null machine_name$

It’s pretty awesome to have a table with alternating colors for the rows for readability. You can create the stylesheet as mentioned here : table { background-color: teal } table, td, th { border:1px solid green; border-collapse:collapse; vertical-align: middle; text-align: center; } tr.d0 td { background-color: #CC9999; color: black; } tr.d1 td