Working with Squid by Neelima Mehta
By Neelima Mehta
Tips on how to obtain, bring together, and configure Squid proxy in your server and patron pcs of other configurations for daily use. Debugging and troubleshooting is usually addressed.
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Extra info for Working with Squid
The syntax to set a rule for an ACL in Squid is: rulename allow/deny aclname In the above syntax: • aclname: Specifies the definition of an acl command that ACL rules use to deny or allow access to an end user or a network identifier. • rulename: Specifies predefined ACL rules that help Squid allow or deny end users or network identifiers. < Day Day Up > < Day Day Up > ACL Elements ACL elements are predefined elements that Squid uses to set ACL rules for Squid client computers or end users. You can divide the ACL elements logically into base types, which identify different ACL elements and enable ACL rules to set access rights on the ACL elements based on their values.
Aborted_requests: Specifies the number of server-side HTTP requests aborted due to client-side aborts. 5-Minute Average of Counters The 5-minute page shows an average change of data in the Traffic and Resource Counter page, in 5 minutes, as shown in Figure 4-29: Figure 4-29: 5-Minute Average Counter 60-Minute Average of Counters The 60-minute page shows an average change of data in the Traffic and Resource Counter page, in 60 minutes, as shown in Figure 4-30: Chapter 4: Exploring the Cache in Squid 53 54 Chapter 4: Exploring the Cache in Squid Figure 4-30: 60-Minute Average Counter Cache Utilization The Cache Utilization page shows the average of the counters over different time spans, such as the last 5 minutes, 15 minutes, and 1 hour.
You can disable internal DNS using the --disable-internal-dns option. The internal DNS page contains three tables: • Queue: Shows a list of unanswered queries. The list should always be small if the DNS server is in active state. If the list is long, ensure that the DNS server is disabled. • Nameservers: Shows the total number of queries sent and replied to from the DNS server. • Rcode Matrix: Shows the total number of attempts a query makes and the DNS response code of the attempts. Response code zero indicates success.