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2
votes
2answers
71 views

Automatically selecting default in Unix terminal

I'm aware that a command such as something -y will force a yes answer on any response back from the terminal, but I'm having problems with getting Ansible to automate the process of configuration. ...
0
votes
1answer
186 views

What's the meaning of `netstat -i` flags

When I run netstat -i in Linux, I get outputs like: Kernel Interface table Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg eth0 1500 0 0 0 0 0 ...
1
vote
1answer
137 views

How to filter TCP packets based on flags using Packet Filter

Well, I didn't know exactly how to ask this question, but I know that you can use the keyword flags to especify which flags you want to filter. According to the documentation of the Packet filter: ...
4
votes
1answer
374 views

What happens to tcp packets when they are unable to finish the 3 way handshake?

Firewall for a virtual dedicated server. I was looking into how to prevent a FIN scan and it got me thinking about the consequences. A lot of people are using this rule: -p tcp --tcp-flags ...
7
votes
2answers
2k views

tcp flags in iptables: What's the difference between RST SYN and RST and SYN RST ? When to use ALL?

I'm working on a firewall for a virtual dedicated server and one of the things I'm looking into is port scanners. TCP flags are used for protection. I have 2 questions. The rule: -p tcp ...
0
votes
1answer
287 views

iptables doesn't want to log and drop simultaneously

I'm (still) trying to build an iptables firewall, but this time, I'm stuck trying to log dropped packets. Here is how I'm doing this (this code is inserted after the ACCEPT rules; $IPT represents the ...
0
votes
1answer
23 views

Determine flags used during 'configure' step of an installation after the fact

So in my case, I'm upgrading a Ruby install from a low patch level to a higher one. I wanted know exactly what flags, if any, were used in the previous ./configure step of the installation process. ...
1
vote
2answers
57 views

Strange behaviour with RewriteRule flags?

I have a gallery with pictures. If anybody links my gallery pictures from somewhere else (remote server), a forbitten image should be shown. This basically works, but now I recognized a strange ...
1
vote
3answers
498 views

General question regarding the use of TCP FIN and TCP RSET

I've been reading about the TCP protocol recently because I was a little curious about how and why certain flags were used. In the information I found it talks about a normal close TCP FIN should be ...
1
vote
2answers
385 views

Using RIPE's “-B” flag with the whois command

When using RIPE web DB search system, you can add the "-B" flag to list hidden attributes of an object. I'm trying to find a way of adding the "-B" flag somewhere within the following command: > ...
0
votes
1answer
48 views

SQL server 2000 trace Flags

On fixing an issue we are having with our backups I am following instructions where it is telling me to add the Trace Flag -g384. This is all good but I am not sure what this perameter actually does. ...
1
vote
2answers
2k views

DNSSEC - Ad Flag not activated

I have some doubts regarding DNSSEC. I have one server acting as an Authoritative Name Server and another one as a Cache/Resolver. I'm using Bind 9.7.1-P2 and these are my configuration files: ...
4
votes
4answers
3k views

OpenSSL x509 Purpose flag “Any Purpose” What is this?

Looking at the details of a certificate using the following: openssl x509 -noout -text -purpose -in mycert.pem I find a bunch of purpose flags (which I've discovered are set by the various ...
1
vote
1answer
186 views

Netstat flags on OS/2

On an OS/2 box, what do the flags UGDP mean in the output of netstat -r. Google seems to point to them meaning Up, Gateway (i.e. an indirect root), and Dynamic (learned from a redirect), but that ...