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Feb
3
comment Server becomes unresponsive
Use tools like htop, atop, vmstat.
Feb
1
comment How safe is IPtables whitelisting?
If you are running them in a script, there is no difference. However, you will lock-up yourself when you set policies to drop before allowing your access!
Dec
6
comment iptables REDIRECT works only for first packet
@MirkoBanchi: Look at the post I am referring in my answer
Nov
19
comment psql: could not connect to server: Network is unreachable
These are different possibilities like: routing problems, some other firewall. I can't help further unless you provide more details about your setup.
Nov
19
comment psql: could not connect to server: Network is unreachable
Is this rulset from client, server, or some other machine in between? Are both the client and server on same LAN?
Nov
19
comment psql: could not connect to server: Network is unreachable
@Ravi: Please, post iptables rules if you want help adding an accept rule for postgresql.
Nov
2
comment Ways to reduce packets per second (Bundle VPN Packets?)
If you are limited based on destination port, you can use different ports at the same time.
Nov
2
comment logrotate causes php5-fpm downtime
Are you sure it is related to logrotate!?
Oct
25
comment Redirecting all outgoing HTTP traffic from one computer to another on a DD-WRT router
Try it with a proxy server that supports transparent proxy such as squid.
Oct
25
comment Redirecting all outgoing HTTP traffic from one computer to another on a DD-WRT router
What are you trying to do? Usually, you redirect outgoing HTTP traffic to a proxy (not a web server) for caching and filtering.
Oct
24
comment How do I use haproxy to load balance 2 postfix servers?
You need to provide much more information in order to get help like: haproxy config, postfix config, and how you are sending test email.
Oct
19
comment userdel still keeps users in /etc/passwd?
@CyrilN.: You can redirect the output to some regular file instead of /dev/null to be able to check for errors.
Sep
29
comment iptables search in web content
@Addr3ss: Squid by itself does not have an ACL type to filter based on content. You need to use another software. See my updated answer
Aug
16
comment How to configure keepalived - not able to setup VIP
posted my answer.
Aug
16
comment How to configure keepalived - not able to setup VIP
Are you sure you are using the right configuration file? I tried your configuration and it worked! Have a look at the script you are using to run keepalived. I got the same messages (without IP assignment) when using empty config file.
Aug
16
comment 10,000 entries in iptables on CentOS 4GB Ran, dual core 2.3ghz?
+1 very good answer! I liked the netmask tool. It helps in creating a script to periodically update the rules as IPs may change.
Aug
16
comment How to configure keepalived - not able to setup VIP
What do you have in your logs? Keepalived by default write to /var/log/syslog. One possible cause: your track script is failing.
Aug
8
comment How can I configure ubuntu to have a static IP address but still use DHCP for other configuration information?
@DavClark: See man interfaces.
Jul
29
comment Is there a way to look for files on Apache, then if not found, look in Tomcat?
@Native: You can wildcard redirect like /*.jsp.
Jul
21
comment Windows Apache 2.2 painfully slow executing CGI
While this link may answer the question, it is better to include the essential parts of the answer here and provide the link for reference. Link-only answers can become invalid if the linked page changes.