Dear Sir, Here are some additional details that may help. Unique authenticated users per proxy : 315 users/day Proxy utilization per day : 20 GB per day Squid Disk cache : Disabled System memory and load status: Mem: 8183880k total, 5938872k used, 2245008k free, 524284k buffers load average: 0.76, 0.65, 0.64 System Processor : Intel(R) Xeon(R) CPU 2.83GHz Quad-Core System Memory : 8 GB Please ask me for any additional information if required. Regards, Sankar.M Squid configured with, # ./configure --prefix=/usr/local/squid --localstatedir=/var/logs/squid --exec-prefix=/usr/local/squid --enable-linux-netfilter --disable-ident-lookups --with-filedescriptors=8192 --enable-snmp --enable-delay-pools --enable-cache-digests --enable-poll --enable-truncate --enable-removal-policies --enable-auth="basic digest" --enable-auth-basic-helpers=squid_radius_auth --enable-digest-auth-helpers=ldap On 10/11/09, Henrik Nordstrom <henrik@xxxxxxxxxxxxxxxxxxx> wrote: > lör 2009-10-10 klockan 20:23 +0530 skrev sankar m: > >> I'm using "digest_ldap_auth" with "Open Ldap" combination for Digest >> Authentication. It works well, but some users got authentication >> failed. I'm able to get the valid hash from the LDAP server through >> the command line, > > Do these users have any "odd" characters in their password? Digest > unfortunately only works reliably for us-ascii characters. > >> Note that I'm running FIVE squid servers. I successfully authenticated >> with 2nd proxy server using the same user account which got failed >> with the first proxy server. Squid returning the TCP_DENIED/407 >> response to the client. Same userid is working when I do restart squid >> (even reconfigure doesn't help), but I feel it is never be a right >> way. After the successful restart, some other accounts are not >> working. > > Which Squid version? > > Regards > Henrik > >