Cell Tower IP Address Blocks [closed]

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for … Read more

exim or dovecot plugin or filter to put body preview to header [closed]

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for … Read more

Force every HTTPS to one url

Is there a bug free way to redirect/forward all HTTPS requests which forwarding through a router to one url ? I want to redirect all clients https to specific page something like hotspots walled garden . I know that https is secure and we can not see inside of it . i want to redirect … Read more

HP ProCurve 2920, MAC filter

I have few HP 2920. They are connected to another HP modular switch via uplinks. When I check which devices are connected via MAC I can only see MAC addresses on uplink ports (idk why I can’t see particular MAC on particular port on 2920. They are showed also in uplink ports). What I want … Read more

Free firewall for Windows Server 2003 [closed]

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for … Read more

Spam filtering based on average ascii score

I’m trying to come up with a new spam filter based on what has been coming through our filter lately. A lot of the messages have subject lines like: “Re: ᴢᴀɴᴛᴀᴄ 【ʜᴀs】 ʙᴇᴇɴ ʟɪɴᴋᴇᴅ 【ᴛo】 ᴄᴀɴᴄᴇʀ” where most of the text isn’t actually the standard ascii 1 – 128 range but uses Unicode to simulate … Read more

Any way to filter IP’s when logging queries? (BIND 9.3)

I would like to record queries to my DNS from a particular ip. Is this possible? Right now I have this: channel query_log { file “/var/named/data/queries.log” versions 2 size 1G; severity debug 3; print-category yes; print-severity yes; print-time yes; }; category queries { query_log;}; As you may imagine, the file “queries.log” grows at an extremely … Read more

Altq limits not being applied to UDP transfers

I have a OpenBSD server acting as a router/firewall with yhr packet filter ruleset shown below, a linux server, and a linux client. When transferring files (using netcat) by TCP, the limits are applied (for example the 100mbit limit in the example), though when transferring data by UDP, the limits aren’t applied; the file always … Read more

Inconsistencies with Linux tc filter u32 matching on packet data payload – can someone explain?

I would just like some heads up on this as I really don’t understand -why- this is the case. Further down is the TCPDUMP output (tcpdump -s0 -XXnni eth0 tcp port 80) of the ‘HTTP’ response a webserver gives when a normal GET request is made to it. What I am trying to do is … Read more