The Vary Header The vary header is sent within the servers response to the client and instructs any intermediary caches to cache a separate instance based on the headers specified within the vary header. Encoding Headers As our example is based around the following HTTP headers, here is a quick summary of each, Content-Encoding (HTTP … Read more
Issue You may observe the ASA incorrectly proxy ARPing for an IP address resulting in connectivity issues . Background Within 8.4(2) and 8.6(1) the following NAT changes were introduced.This basically states that Proxy ARP is enabled by default on both static and identity based NAT statements. Reference : http://www.cisco.com/en/US/docs/security/asa/asa84/configuration/guide/intro_intro.html Identity NAT configurable proxy ARP and … Read more
Recently I found myself in a situation where I needed to recompile mod_wgsi against a newer version of Python. This involves recompiling Python with the correct flags, then recompiling mod_wsgi using the newly compiled Python. Below shows the steps, Check Version First of all check what version of Python mod_wsgi was compiled with. [root@server]# ldd … Read more
TACACS+ accounting was first supported within BIG-IP version 10.2.0. Within this article we will show your the commands required to enable this feature. Configure First of all you will need to enable accounting within your authentication settings (this can be found within the GUI under ‘System / Users / Authentication’) modify sys db config.auditing.forward.destination value … Read more
By: Ayman Hammoudeh Introduction Pivoting refers to method used by penetration testers that uses compromised systems to attack other systems on the same network to avoid restrictions such as firewall configurations, which may prohibit direct access to all machines. For example, an attacker compromises a web server on a corporate network; the attacker can then … Read more
Issue When using scp to copy a file the file fails to transfer, however there is no error message. Solution This issue can occur due echo commands within your .bashrc and how the scp program handles the output from these commands. This is a known bug within scp which can be viewed here. To resolve this … Read more
Issue When viewing the UIE persistence records you observe that the Client Addr field is not populated. root@f5ltm(Active)(tmos)# show ltm persistence persist-records all-properties Sys::Persistent Connections universal – 172.16.100.200:80 – 192.168.1.31:80 ———————————————————– TMM 0 Mode universal Key 8ffa6c0012825a76b3b68d10a9c68ad3 Age (sec.) 4 Virtual Name VS-172.16.100.200-80 Virtual Addr 172.16.100.200:80 Node Addr 192.168.1.31:80 Pool Name POOL-172.16.100.200-80 Client Addr :: … Read more
Within this quick tutorial we will show you the steps required to install easy_install-2.7 and pip-2.7. Install wget –no-check-certificate tar xf distribute-0.6.35.tar.gzcd distribute-0.6.35python2.7 setup.py install easy_install-2.7 pip Confirm [root@server]# easy_install-2.7error: No urls, filenames, or requirements specified (see –help) [root@server]# pip-2.7 -Vpip 1.3.1 from /usr/local/lib/python2.7/site-packages/pip-1.3.1-py2.7.egg (python 2.7)
Within this article we will show you how to list all IP`s relating to a single AS. STEPS First of all get the IP address for the domain. [root@server]$ whois 173.252.110.27 | grep OriginAS OriginAS: AS32934 Finally run another whois against the AS to obtain a list of IPs. origin=$(whois `dig facebook.com +short | head … Read more
Issue When running Django 1.5.1 you may observe the following error, NoReverseMatch at /‘url’ requires a non-empty first argument. The syntax changed in Django 1.5, see the docs. Solution This issue can occur due to changes in the url tag syntax. More information on this can be found at https://docs.djangoproject.com/en/dev/releases/1.5/. The correct syntax for url … Read more